{"title":"SenLiquid","description":"\u003cp\u003eLiquid Sensor\u003c\/p\u003e","products":[{"product_id":"gravity-lab-grade-analog-ph-sensor-kit-for-arduino","title":"Gravity: Lab Grade Analog pH Sensor Kit for Arduino","description":"\u003cp\u003eNeed to measure water quality and other parameters but haven't got any low-cost pH meter? Find it difficult to use with Arduino? DFRobot analog pH meter, specially designed for Arduino controllers and has a convenient and practical \"Gravity\" connector and a bunch of features. Instant connection to your probe your Arduino to get pH measurements at ± 0.1pH (25 ℃). For most hobbyists, this great accuracy range and its low cost make this a great tool for biorobotics and other projects! It has an LED that works as the Power Indicator, a BNC connector, and a PH2.0 sensor interface. To use it, just connect the pH sensor with the BND connector, and plug the PH2.0 interface into the analog input port of any Arduino controller. If pre-programmed, you will get the pH value easily. Comes in a compact plastic box with foams for better mobile storage.\u003cbr\u003e\u003cbr\u003eBuild your own PH meter gadget or a water monitoring station for your water tanks. This and our other water sensor devices could make for the ultimate water control device. Use it for your aquaponics or fish tanks or other materials that need measurements. \u003cbr\u003e\u003cbr\u003eThis is a laboratory probe, it can't be immersed in the liquid for too long time. You can check here for the whole Analog pH Sensor \/ Meter Pro Kit For Arduino or a spare Industrial Probe as a replacement\u003cbr\u003e\u003cbr\u003eWhat is pH? \u003cbr\u003e\u003cbr\u003e“pH stands for the power of hydrogen, which is a measurement of the hydrogen ion concentration in the body. The total pH scale ranges from 1 to 14, with 7 considered to be neutral. A pH less than 7 is said to be acidic and solutions with a pH greater than 7 are basic or alkaline.” \u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003eNote: Buffer solutions are not included.\u003cbr\u003e\u003cbr\u003eGravity: Analog pH Sensor \/ Meter Pro Kit for Arduino and Gravity: Analog Industrial pH Sensor \/ Meter Pro Kit V2 are intended for testing in laboratory environments only, and the probes are subject to data drift after extended measurements. If you need to measure a solution for an extended period of time, we recommend using the Gravity: Analog pH Sensor \/ Meter Pro Kit for Arduino or Gravity: Analog Industrial pH Sensor \/ Meter Pro Kit V2.\u003cbr\u003e\u003cbr\u003eAfter you received your package! You may found some white particles on the protection foam which is the KCl crystallization from the cap. Please don't worry about the crystallization in the packing box, that's normal. Actually, since the transportation restriction on liquid, we have poured out the KCL3N solution in the cap, the slight crystallization in the packing box should be leaked since the remnant. Anyway, once you received the probe, you should store it in KCL3N solution, you can not leave it in dry circumstances.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eApplications\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eWater quality testing\u003c\/li\u003e\n\u003cli\u003eAquaculture\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSpecification\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eModule Power: 5.00V\u003c\/li\u003e\n\u003cli\u003eModule Size : 43 x 32mm(1.69x1.26\")\u003c\/li\u003e\n\u003cli\u003eMeasuring Range :0 - 14PH\u003c\/li\u003e\n\u003cli\u003eMeasuring Temperature: 0 - 60 ℃\u003c\/li\u003e\n\u003cli\u003eAccuracy : ± 0.1pH (25 ℃)\u003c\/li\u003e\n\u003cli\u003eResponse Time: ≤ 1min\u003c\/li\u003e\n\u003cli\u003epH Sensor with BNC Connector\u003c\/li\u003e\n\u003cli\u003epH2.0 Interface (3-foot patch )\u003c\/li\u003e\n\u003cli\u003eGain Adjustment Potentiometer\u003c\/li\u003e\n\u003cli\u003ePower Indicator LED\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFRobot","offers":[{"title":"Default Title","offer_id":42425859506253,"sku":"E38001-001","price":54.38,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38001-win2.jpg?v=1763290459"},{"product_id":"gravity-7-24-industrial-analog-ph-meter-kit-arduino-raspberry-pi","title":"Gravity: 7\/24 Industrial Analog pH Meter Kit (Arduino, Raspberry Pi)","description":"\u003cp\u003eThe Gravity: Analog pH Sensor \/ Meter Pro Kit V2 stands out for its industrial-grade durability, exceptional accuracy, and user-friendly design. It is an essential tool for anyone involved in precise water quality monitoring and management.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIndustrial-Grade Performance\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eDesigned for continuous operation, this sensor supports \u003cstrong\u003e7\/24-hour monitoring\u003c\/strong\u003e with a lifespan exceeding\u003cstrong\u003e 4380 hours\u003c\/strong\u003e, ensuring consistent performance in demanding environments.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eExceptional Accuracy\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAchieving a \u003cstrong\u003emeasurement accuracy of ±0.1 pH\u003c\/strong\u003e at 25°C, the device employs a two-point calibration method, enabling users to effortlessly calibrate using standard buffer solutions (4.0 and 7.0). This precision is vital for applications where accurate pH levels are critical.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRobust Design and Compatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe sensor operates within a wide voltage range of 3.3 to 5.5V, making it compatible with various main control boards like \u003cstrong\u003eArduino and LattePanda\u003c\/strong\u003e. The plug-and-play design, featuring a BNC connector, simplifies setup and reduces installation time.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAttention：\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e1. The BNC connector and the signal conversion board must be kept dry and clean, otherwise, it will affect the input impedance, resulting in an inaccurate measurement. If it is damp, it needs to be dried.\u003c\/p\u003e\n\u003cp\u003e2. The signal conversion board cannot be directly placed on a wet or semiconductor surface, otherwise, it will affect the input impedance, resulting in an inaccurate measurement. It is recommended to use the nylon pillar to fix the signal conversion board, and allow a certain distance between the signal conversion board and the surface.\u003c\/p\u003e\n\u003cp\u003e3. The sensitive glass bubble in the head of the pH probe should avoid touching the hard material. Any damage or scratches will cause the electrode to fail.\u003c\/p\u003e\n\u003cp\u003e4. After completing the measurement, disconnect the pH probe from the signal conversion board. The pH probe should not be connected to the signal conversion board without the power supply for a long time.\u003c\/p\u003e\n\u003cp\u003e5. The bottle cap of the probe contains protective liquid (3.3mol\/L KCL). Even if the bottle cap is screwed tightly, some protective liquid may still leak around the bottle cap, forming white crystals. But as long as there is still protective liquid in the bottle cap, it will not affect the life and accuracy of the probe. So please use it with confidence. It is recommended that the white crystals be poured back into the protective liquid in the bottle cap.\u003c\/p\u003e\n\u003ch4\u003eFeatures\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e3.3~5.5V wide voltage input\u003c\/li\u003e\n\u003cli\u003eHardware filtered output signal, low jitter\u003c\/li\u003e\n\u003cli\u003eGravity connector and BNC connector, plug-and-play, no soldering required\u003c\/li\u003e\n\u003cli\u003eThe software library supports two-point calibration and automatically identifies standard buffer solution\u003c\/li\u003e\n\u003cli\u003eUniform size and connector, convenient for the design of mechanical structures\u003c\/li\u003e\n\u003cli\u003eIndustrial Probe - Support 7*24 Measurement\u003c\/li\u003e\n\u003cli\u003eUpgraded Transmitter - More Accurate and Stable\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSpecification\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eSignal Conversion Board (Transmitter) V2\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSupply Voltage: 3.3~5.5V\u003c\/li\u003e\n\u003cli\u003eOutput Voltage: 0~3.0V\u003c\/li\u003e\n\u003cli\u003eProbe Connector: BNC\u003c\/li\u003e\n\u003cli\u003eSignal Connector: PH2.0-3P\u003c\/li\u003e\n\u003cli\u003eMeasurement Accuracy: ±0.1@25℃\u003c\/li\u003e\n\u003cli\u003eDimension: 42mm*32mm\/1.66*1.26in\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003epH Probe\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eProbe Type: Industrial Grade\u003c\/li\u003e\n\u003cli\u003eDetection Range: 0~14\u003c\/li\u003e\n\u003cli\u003eTemperature Range: 0~60°C\u003c\/li\u003e\n\u003cli\u003eAccuracy : ± 0.1pH (25 ℃) \u003c\/li\u003e\n\u003cli\u003eResponse Time: \u0026lt;1min\u003c\/li\u003e\n\u003cli\u003eProbe Life: 7*24hours \u0026gt;0.5 years (depending on the water quality)\u003c\/li\u003e\n\u003cli\u003eCable Length: 500cm\u003cstrong\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFRobot","offers":[{"title":"Default Title","offer_id":42425889783885,"sku":"E38002-001","price":117.53,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38002-win1.jpg?v=1763293073"},{"product_id":"intelligent-rain-detection-module","title":"Intelligent Rain Detection Module","description":"\u003ch2\u003eIntroduction\u003cbr\u003e\u003cbr\u003e\n\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThis smart rain sensor offers a fast way to detect rainfall change on glass in real-time free from effects like sunlight, dust, leaves, etc., and feeds back information (no rain, light rain, moderate rain, or heavy rain) to users.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38003-content1.webp?v=1791353462\" alt=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe module comes with a tiny body with a diameter of about 12.5mm, which adapts to cameras of all kinds. It can be used in security monitoring, smart home, smart agriculture, and so on. This small sensor can be easily embedded in projects even with strict space limits like box cameras and speed dome cameras.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38003-content2.webp?v=1791353474\" alt=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe sensor can achieve accurate real-time rainfall detection in any rainfall environment, and its built-in optical algorithm can intelligently filter ambient factors like sunlight, dust, leaves, etc., to ensure precise rainfall data collection in complex conditions. It gives feedback about rainfall changes like light, moderate or heavy rain.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38003-content3.webp?v=1791353495\" alt=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eBesides, it is equipped with functions like ambient light detection and temperature detection that can monitor internal device temperature. With the combination of rainfall, ambient and internal temperature, this sensor helps users build up smart, comprehensive, and cost-effective rainfall detection applications.\u003c\/p\u003e\n\u003cp\u003eThe sensor supports rainfall detection sensitivity adjustment for use in different rainfall and environments.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38003-content4.webp?v=1791353515\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAlso, it has low power mode that reduces power consumption, greatly extending module service life.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis module is mainly used to detect rainfall on the surface of windshield glass and send rainfall information (no rain, light rain, moderate rain, and heavy rain) to the camera host. Then camera host can control wipers to get rid of the raindrops on the windshield to ensure a clear view for the camera in rainy conditions. So, these smart rain detection modules are very suitable for smart doors or windows, smart windshield wipers, and so on.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38003-content6.webp?v=1791353551\" alt=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38003-content7.webp?v=1791353568\" alt=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eFeatures\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eCan achieve accurate real-time rainfall detection in any rainfall environment\u003c\/li\u003e\n\u003cli\u003eEquipped with functions like ambient light detection and temperature detection\u003c\/li\u003e\n\u003cli\u003eSupports rainfall detection sensitivity\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eApplication\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSecurity monitoring\u003c\/li\u003e\n\u003cli\u003eSmart home\u003c\/li\u003e\n\u003cli\u003eSmart agriculture\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifcation\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eCommunication: UART\u003c\/li\u003e\n\u003cli\u003eSerial Communication Rate: 115200 bps\u003c\/li\u003e\n\u003cli\u003eVoltage: 3.3V\u003c\/li\u003e\n\u003cli\u003eOperating Current: ＜50mA\u003c\/li\u003e\n\u003cli\u003eTemperature Range: -40℃~85℃\u003c\/li\u003e\n\u003cli\u003eDimension: diameter about 12.5±0.15mm\u003c\/li\u003e\n\u003cli\u003eWiring：\u003cb\u003eBlack-VCC\u003c\/b\u003e，\u003cb\u003e\u003cspan style=\"color: #ffffff;\"\u003eWhite\u003c\/span\u003e\u003c\/b\u003e-UART_RX，\u003cspan style=\"color: #ffff00;\"\u003e\u003cb\u003eYellow\u003c\/b\u003e\u003c\/span\u003e-UART_TX，\u003cspan style=\"color: #ff0000;\"\u003e\u003cb\u003eRed\u003c\/b\u003e\u003c\/span\u003e-GND\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDocuments\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/github.com\/May-DFRobot\/DFRobot\/raw\/master\/SEN0545Datasheet.pdf\" target=\"_blank\"\u003eDatasheet\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/github.com\/May-DFRobot\/DFRobot\/raw\/master\/SEN0545User%20Manual.pdf\" target=\"_blank\"\u003eUser Manual\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFRobot","offers":[{"title":"Default Title","offer_id":42428444868685,"sku":"E38003-001","price":40.79,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38003-win1.jpg?v=1763340799"},{"product_id":"gravity-steam-sensor","title":"Gravity: Steam Sensor","description":"\u003cp\u003e\u003cspan\u003eDFRobot Steam (Water) Sensor is an analog moisture detection module designed to sense the presence of water droplets, steam, or surface humidity. The sensing board produces an analog voltage output that increases as moisture accumulates on the detection surface, enabling simple environmental monitoring and liquid detection projects. Direct compatibility with \u003c\/span\u003eArduino\u003cspan\u003e IO expansion shields simplifies wiring and rapid prototyping. This compact humidity-sensitive detection board provides an inexpensive solution for rain detection, condensation monitoring, and basic fluid presence sensing in electronics experiments, robotics projects, and educational demonstrations.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eAnalog Moisture Detection Principle\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThis humidity sensing module measures the conductivity changes caused by water or condensed steam on the sensor surface. As moisture increases, the analog output voltage rises proportionally, allowing microcontrollers to determine relative wetness levels. Such behavior enables straightforward threshold detection for rain sensing, condensation monitoring, or surface moisture alerts. The analog signal interface supports flexible calibration for custom trigger points in embedded control systems and experimental electronics projects.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eDirect Microcontroller Integration\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThis compact environmental sensing board connects directly to common controller platforms through an analog signal line, ground, and power supply. Operating at either 3.3V or 5V makes the module compatible with a wide range of development boards used in robotics, IoT prototypes, and interactive installations. Simple three-wire connectivity allows rapid integration into controller expansion shields and sensor interfaces without complex circuitry.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eCompact and Cost‑Effective Moisture Sensor\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eA lightweight 30 × 20 mm sensing board offers an economical approach to liquid detection tasks where high precision humidity sensors are unnecessary. The small footprint allows easy installation inside enclosures, robotics platforms, or experimental devices. Such simplicity makes the moisture detection board suitable for classroom demonstrations, entry‑level environmental monitoring experiments, and quick prototyping of water‑triggered automation systems.\u003c\/p\u003e\n\u003cp\u003eTypical uses include simple rain detectors, condensation alerts, humidity-triggered touch interfaces, and experimental liquid level indicators. The analog moisture sensing module serves as a practical component for rapid prototyping, embedded electronics experiments, and STEM Education projects requiring basic environmental interaction.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDetects surface moisture, steam, or water droplets through analog output\u003c\/li\u003e\n\u003cli\u003eAnalog voltage increases with higher humidity on the sensing surface\u003c\/li\u003e\n\u003cli\u003eSupports both 3.3V and 5V power supply\u003c\/li\u003e\n\u003cli\u003eDirect connection to controller analog input pins\u003c\/li\u003e\n\u003cli\u003eCompact and lightweight sensing board for easy installation\u003c\/li\u003e\n\u003cli\u003eLow-cost solution for basic water or rain detection projects\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSimple rain detector\u003c\/li\u003e\n\u003cli\u003eLow-cost steam or water level switch\u003c\/li\u003e\n\u003cli\u003eHumidity-based touch sensor\u003c\/li\u003e\n\u003cli\u003eCondensation detection systems\u003c\/li\u003e\n\u003cli\u003eWater leakage alert prototypes\u003c\/li\u003e\n\u003cli\u003eEducational electronics experiments\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecification\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePower supply: 3.3v or 5v\u003c\/li\u003e\n\u003cli\u003eOutput voltage signal: 0~4.5v(@5v) or 0~3.0v(@3.3v)\u003c\/li\u003e\n\u003cli\u003ePin definition:\n\u003cul\u003e\n\u003cli\u003e    Analog output (Blue wire)\u003c\/li\u003e\n\u003cli\u003e    GND (Black wire)\u003c\/li\u003e\n\u003cli\u003e    Power (Red wire)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eSize: 30x20x6mm (0.18x0.79x0.24\")\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDocuments\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/wiki.dfrobot.com\/sen0121\/\" target=\"_blank\"\u003eProduct Wiki\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"DFRobot","offers":[{"title":"Default Title","offer_id":42428482551885,"sku":"E38004-001","price":7.13,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38004-win1.jpg?v=1763342884"},{"product_id":"gravity-lab-grade-analog-ec-electrical-conductivity-sensor-kit-for-water-quality-monitoring-k-1","title":"Gravity: Lab Grade Analog EC \/ Electrical Conductivity Sensor Kit for Water Quality Monitoring (K=1)","description":"\u003ch2\u003eIntroduction\u003c\/h2\u003e\n\u003cp\u003eDFRobot Gravity: analog electrical conductivity meter V2 is specially used to measure the electrical conductivity of an aqueous solution, and then to evaluate the water quality, which is often used in water culture, aquaculture, environmental water detection, and other fields. \u003cspan style=\"color: #ff9c00;\"\u003eYou may also check Liquid Sensor Selection Guide to get better familiar with our liquid sensor series.\u003c\/span\u003e\u003cbr\u003eThis ec meter product, as an upgraded version of the electrical conductivity meter V1, greatly improves the user experience and data precision. It supports 3~5v wide voltage input, and is compatible with 5V and 3.3V main control board; The output signal filtered by hardware has low jitters; The excitation source adopts AC signal, which effectively reduces the polarization effect, improves the precision, and prolongs the life of the probe; The software library uses two-point calibration method, and can automatically identify standard buffer solution, so simple and convenient.\u003cbr\u003eWith this product, the main control board (such as Arduino), and the software library, you can quickly build an electrical conductivity meter, plug, and play, no welding. DFRobot provides a variety of water quality sensor products, uniform size, and interface, not only meet the needs of various water quality testing but also suitable for the DIY of multi-parameter water quality tester.\u003cbr\u003eConductivity is the reciprocal of the resistance, which is related to the ability of the material to carry the current. In the liquid, the reciprocal of the resistance, the conductivity, is the measure of its ability to conduct electricity. Conductivity is an important parameter of water quality. It can reflect the extent of electrolytes present in water.\u003c\/p\u003e\n\u003cp\u003eBest for intermittent laboratory sampling. This K=1 kit is recommended for 1–15mS\/cm measurements and includes calibration solutions. Do not choose a continuous-use probe by immersion rating alone: its conductivity range must also match your sample. Temperature compensation requires a separate temperature measurement.\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan style=\"color: #ffffff;\"\u003e Tips:\u003c\/span\u003e\u003c\/span\u003e\u003cbr\u003eIn order to ensure measurement accuracy, it is strongly recommended to add a temperature sensor to measure the temperature and achieve automatic temperature compensation. DS18B20 waterproof temperature sensor can also be used.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38005-content1.webp?v=1791330699\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan style=\"color: #ffffff;\"\u003e Attention:\u003c\/span\u003e\u003c\/span\u003e\u003cbr\u003e1.The probe is a laboratory-grade probe. Do not immerse in liquid for a long time. Otherwise, this will shorten the life of the probe.\u003cbr\u003e2.Platinum black layer is attached to the surface of the sheet metal in the probe. It should avoid any object touching it. It can only be washed with distilled water, otherwise, the platinum black layer will be damaged, resulting in an inaccurate measurement.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e3.0~5.0V wide voltage input\u003c\/li\u003e\n\u003cli\u003eHardware filtered output signal, low jitter\u003c\/li\u003e\n\u003cli\u003eAC excitation source, effectively reduce polarization\u003c\/li\u003e\n\u003cli\u003eGravity connector and BNC connector, plug and play, no welding\u003c\/li\u003e\n\u003cli\u003eSoftware library supports two-point calibration and automatically identifies standard buffer solution, integrates temperature compensation algorithm\u003c\/li\u003e\n\u003cli\u003eUniform size and connector, convenient for the design of mechanical structures\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eWater quality monitoring.\u003c\/li\u003e\n\u003cli\u003eAquaculture.\u003c\/li\u003e\n\u003cli\u003eHydroponic \u0026amp; Aquaponic.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecification\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eSignal Conversion Board (Transmitter) V2\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSupply Voltage: 3.0~5.0V\u003c\/li\u003e\n\u003cli\u003eOutput Voltage: 0~3.4V\u003c\/li\u003e\n\u003cli\u003eProbe Connector: BNC\u003c\/li\u003e\n\u003cli\u003eSignal Connector: PH2.0-3Pin\u003c\/li\u003e\n\u003cli\u003eMeasurement Accuracy: ±5% F.S.\u003c\/li\u003e\n\u003cli\u003eBoard size: 42mm*32mm\/1.65in*1.26in\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eElectrical Conductivity Probe\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eProbe Type: Laboratory Grade\u003c\/li\u003e\n\u003cli\u003eCell Constant: 1.0\u003c\/li\u003e\n\u003cli\u003eSupport Detection Range: 0~20ms\/cm\u003c\/li\u003e\n\u003cli\u003eRecommended Detection Range: 1~15ms\/cm\u003c\/li\u003e\n\u003cli\u003eTemperature Range: 0~40°C\u003c\/li\u003e\n\u003cli\u003eProbe Life: \u0026gt;0.5 years (depending on the frequency of use)\u003c\/li\u003e\n\u003cli\u003eCable Length: 100cm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eShipping List\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eElectrical Conductivity Probe（K=1, Laboratory Grade）   x1\u003c\/li\u003e\n\u003cli\u003eSignal Conversion Board (Transmitter) V2    x1\u003c\/li\u003e\n\u003cli\u003eStandard Buffer Solution 1413us\/cm x2\u003c\/li\u003e\n\u003cli\u003eStandard Buffer Solution 12.88ms\/cm x2\u003c\/li\u003e\n\u003cli\u003eGravity Analog Sensor Cable  x1\u003c\/li\u003e\n\u003cli\u003eWaterproof Gasket   x2\u003c\/li\u003e\n\u003cli\u003eScrew Cap for BNC Connector  x1\u003c\/li\u003e\n\u003cli\u003eM3 * 10 nylon pillar x4\u003c\/li\u003e\n\u003cli\u003eM3 * 5 screw x8\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDocuments\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/wiki.dfrobot.com\/dfr0300\/\" target=\"_blank\"\u003eProduct Wiki\u003c\/a\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFRobot","offers":[{"title":"Default Title","offer_id":67580966469709,"sku":"E38005-001","price":129.61,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38005-win2.jpg?v=1791330720"},{"product_id":"gravity-lab-grade-analog-ec-electrical-conductivity-sensor-for-wastewater-testing-k-10","title":"Gravity: Lab Grade Analog EC \/ Electrical Conductivity Sensor for Wastewater Testing (K=10)","description":"\u003ch2\u003eIntroduction\u003c\/h2\u003e\n\u003cp\u003eDFRobot Gravity: analog electrical conductivity sensor\/meter(K=10) is particularly used to measure the high electrical conductivity liquid, such as seawater, concentrated brine, etc. The measurement range is up to 100ms\/cm. This product is suitable for the water quality application of mariculture, for example, marine fisheries, marine aquariums. \u003cspan style=\"color: #ff9c00;\"\u003eYou may also check Liquid Sensor Selection Guide to get better familiar with our liquid sensor series.\u003c\/span\u003e\u003cbr\u003eIt supports 3~5v wide voltage input and is compatible with 5V and 3.3V main control boards, such as Arduino and Raspberry Pi. The excitation source adopts an AC signal, which effectively reduces the polarization effect, improves the precision, and prolongs the life of the probe; The software library uses a single-point calibration method, and can automatically identify a standard buffer solution, so simple and convenient.\u003cbr\u003eWith this product, main control board (such as Arduino), and the software library, you can quickly build an electrical conductivity meter, plug, and play, no soldering required, which provides a set of plug-and-play conductivity measurement solutions for makers.\u003cbr\u003eDFRobot provides a variety of water quality sensor products, uniform size, and interface, not only meet the needs of various water quality testing but also suitable for the DIY of multi-parameter water quality tester.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTips:\u003c\/strong\u003e\u003cbr\u003eThis product does not contain a temperature sensor. In order to ensure the measurement accuracy, it is strongly recommended to add a temperature sensor to measure the temperature and achieve automatic temperature compensation. DS18B20 waterproof temperature sensor can be used.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38006-content1.webp?v=1791330929\" alt=\"\"\u003e\u003cbr\u003e\u003cstrong\u003eAttention:\u003c\/strong\u003e\u003cbr\u003e1.The probe is a laboratory-grade probe. Do not immerse in liquid for a long time. Otherwise, this will shorten the life of the probe.\u003cbr\u003e2.Platinum black layer is attached to the surface of the sheet metal in the probe. It should avoid any object touching it. It can only be washed with distilled water, otherwise, the platinum black layer will be damaged, resulting in an inaccurate measurement.\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e3.0~5.0V wide voltage input，0~3.2V output voltage, which is compatible with 5V and 3.3V mainboard\u003c\/li\u003e\n\u003cli\u003eAC excitation source, effectively reduce polarization\u003c\/li\u003e\n\u003cli\u003eGravity connector and BNC connector, plug and play, no welding\u003c\/li\u003e\n\u003cli\u003eSoftware library supports single-point calibration, and automatically identifies standard buffer solution, integrates temperature compensation algorithm\u003c\/li\u003e\n\u003cli\u003eUniform size and connector , convenient for the design of mechanical structures\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecification\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eSignal Conversion Board \u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSupply Voltage: 3.0~5.0V\u003c\/li\u003e\n\u003cli\u003eOutput Voltage: 0~3.2V\u003c\/li\u003e\n\u003cli\u003eProbe Connector: BNC\u003c\/li\u003e\n\u003cli\u003eSignal Connector: PH2.0-3Pin\u003c\/li\u003e\n\u003cli\u003eMeasurement Accuracy: ±5% F.S.\u003c\/li\u003e\n\u003cli\u003eBoard size: 42mm*32mm\/1.65in*1.26in\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eElectrical Conductivity Probe\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eProbe Type: Laboratory Grade\u003c\/li\u003e\n\u003cli\u003eCell Constant: 10±2\u003c\/li\u003e\n\u003cli\u003eSupport Detection Range: 10~100ms\/cm\u003c\/li\u003e\n\u003cli\u003eTemperature Range: 0~40°C\u003c\/li\u003e\n\u003cli\u003eProbe Life: \u0026gt;0.5 years (Actual life is related to the frequency of use and scene)\u003c\/li\u003e\n\u003cli\u003eCable Length: 100±2cm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eShipping List\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eElectrical Conductivity Probe（K=10, Laboratory Grade）       x1\u003c\/li\u003e\n\u003cli\u003eSignal Conversion Board                                                                 x1\u003c\/li\u003e\n\u003cli\u003eStandard Buffer Solution 12.88ms\/cm                                         x4\u003c\/li\u003e\n\u003cli\u003eGravity Analog Sensor Cable                                                          x1\u003c\/li\u003e\n\u003cli\u003eWaterproof Gasket                                                                          x2\u003c\/li\u003e\n\u003cli\u003eScrew Cap for BNC Connector                                                       x1\u003c\/li\u003e\n\u003cli\u003eM3 * 10 nylon pillar                                                                         x4\u003c\/li\u003e\n\u003cli\u003eM3 * 5 screws x8\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDocuments\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/wiki.dfrobot.com\/dfr0300-h\/\" target=\"_blank\"\u003eProduct Wiki\u003c\/a\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFRobot","offers":[{"title":"Default Title","offer_id":67580975513677,"sku":"E38006-001","price":135.66,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38006-win1.jpg?v=1791330961"},{"product_id":"gravity-industrial-analog-ec-electrical-conductivity-meter-kit-for-water-quality-monitoring-k-1-ip68","title":"Gravity: Industrial Analog EC \/ Electrical Conductivity Meter Kit for Water Quality Monitoring (K=1, IP68)","description":"\u003ch2\u003eIntroduction\u003c\/h2\u003e\n\u003cp\u003eConductivity is the reciprocal of an object's resistivity. It represents a material’s ability to pass a current. In a liquid, conductivity is a measure of a solution’s ability to conduct electricity and can reflect the amount of dissolved or salinity of a water source, so it’s an important parameter in water quality monitoring.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eDFRobot Gravity: Analog Electrical Conductivity Sensor PRO(K=1) is specially used to measure the conductivity in aqueous solutions, and then to evaluate the water quality. \u003c\/b\u003eThese conductivity sensors are often used in hydroponics, aquaculture, environmental water detection, and other fields.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eAs an upgraded version of the analog electrical conductivity meter, this pro version has \u003cb\u003egreatly improved probe endurance\u003c\/b\u003e, which can be used in 24\/7 conductivity monitoring. Besides, \u003cb\u003ethe integrated PT1000 platinum resistance thermometer makes it easier to measure the compensated temperature data\u003c\/b\u003e.\u003c\/p\u003e\n\u003cp\u003eIt supports 3-5V wide voltage input and is compatible with 5V and 3.3V main control boards. The output signal is filtered by hardware and has low jitter. The excitation source adopts an AC signal, which effectively reduces the polarization effect, improves the precision, and prolongs the life of the probe. The supported library comes with a calibration program to allow you to get started easily. Besides, there are practical items in the package, like calibration solution, accessory kit, waterproof connector, etc., which can help you quickly build a conductivity monitoring platform.\u003c\/p\u003e\n\u003cp\u003eWith this product, a controller board (such as Arduino), and the software library, you can quickly build an electrical conductivity meter, plug-and-play, no solder required. DFRobot provides a variety of water quality sensor products with uniform sizes and interfaces, which not only meet the needs of various water quality testing but are also suitable for the DIY of multi-parameter water quality testers.\u003c\/p\u003e\n\u003cp\u003eThis is an industrial-grade probe and can be immersed in liquid for a long time. If you want a conductivity probe with higher accuracy or larger range, please select the laboratory probe (Gravity: Analog Electrical Conductivity Sensor \/Meter V2 (K=1)).\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38007-content1.webp?v=1791331133\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eElectrical Conductivity Probe Pro Pinout\u003c\/b\u003e\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eEasier to measure the compensated temperature data\u003c\/li\u003e\n\u003cli\u003ePlug-and-play, no solder required\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eHydroponics\u003c\/li\u003e\n\u003cli\u003eAquaculture\u003c\/li\u003e\n\u003cli\u003eEnvironmental water detection\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecification\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSupply Voltage: 3.3-5.0V\u003c\/li\u003e\n\u003cli\u003eOutput Signal: 0-3V\u003c\/li\u003e\n\u003cli\u003eProbe Type: Industrial Grade\u003c\/li\u003e\n\u003cli\u003eCell Constant: K=1\u003c\/li\u003e\n\u003cli\u003eTemperature Detector: PT1000 platinum resistance thermometer\u003c\/li\u003e\n\u003cli\u003eMaximum Range: 1-2200μs\/cm\u003c\/li\u003e\n\u003cli\u003ePractical Range: 100-2000μs\/cm\u003c\/li\u003e\n\u003cli\u003eOperating Temperature: 0-50℃ (non-freezing)\u003c\/li\u003e\n\u003cli\u003ePressure Resistant: 0.5MPa\u003c\/li\u003e\n\u003cli\u003eWaterproof Level: IP68\u003c\/li\u003e\n\u003cli\u003eCable Length: 5m\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eShipping List\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eElectrical Conductivity Probe x1\u003c\/li\u003e\n\u003cli\u003eElectrical Conductivity Signal Conversion Board (Industrial Grade) x1\u003c\/li\u003e\n\u003cli\u003ePT1000 RTD Signal Conversion Board x1\u003c\/li\u003e\n\u003cli\u003eGravity Sensor Cable x2\u003c\/li\u003e\n\u003cli\u003eWaterproof Joint x1\u003c\/li\u003e\n\u003cli\u003eWaterproof Aviation Connector x1\u003c\/li\u003e\n\u003cli\u003eElectrical Conductivity Calibration Standard Solution 1413µs\/cm x4\u003c\/li\u003e\n\u003cli\u003eNylon Pillar Screws Kit x1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDocuments\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/wiki.dfrobot.com\/sen0451\/\" target=\"_blank\"\u003eProduct Wiki\u003c\/a\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eCertifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eCE CE \u003ci\u003e\u003c\/i\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRoHS RoHS \u003ci\u003e\u003c\/i\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFRobot","offers":[{"title":"Default Title","offer_id":67580990521421,"sku":"E38007-001","price":362.55,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38007-win1.jpg?v=1791331190"},{"product_id":"gravity-lab-grade-analog-ph-sensor-kit-for-arduino-raspberry-pi-with-calibration-solutions","title":"Gravity: Lab Grade Analog pH Sensor Kit for Arduino \/ Raspberry Pi (with Calibration Solutions)","description":"\u003ch2\u003eIntroduction\u003c\/h2\u003e\n\u003cp\u003eDFRobot Gravity: Analog pH meter V2 is specifically designed to measure the pH of the solution and reflect the acidity or alkalinity. DFRobot ph sensor is commonly used in various applications such as aquaponics, aquaculture, and environmental water testing.\u003c\/p\u003e\n\u003cp\u003eAs an upgraded version of pH meter V1, this product greatly improves the precision and user experience. The onboard voltage regulator chip supports the wide voltage supply of 3.3~5.5V, which is compatible with the 5V and 3.3V main control boards. The output signal filtered by hardware has low jitter. The software library adopts the two-point calibration method, and can automatically identify two standard buffer solutions (4.0 and 7.0), so simple and convenient. \u003c\/p\u003e\n\u003cp\u003eThe sensor can be easily connected to most popular microcontrollers  (such as Arduino), with its Arduino library, you can quickly build a pH meter, plug and play. DFRobot provides a variety of water quality ph analog sensor products, uniform size, and interface, not only meeting the needs of various water quality measuring  but are also suitable for the DIY multi-parameter water quality tester.\u003cbr\u003eThe pH is a value that measures the acidity or alkalinity of the solution. It is also called the hydrogen ion concentration index. The pH is a scale of hydrogen ion activity in the solution. The pH has a wide range of uses in medicine, chemistry, and agriculture. Usually, the pH is a number between 0 to 14. Under the thermodynamic standard conditions, pH=7, which means the solution is neutral; pH\u0026lt;7, which means the solution is acidic; pH\u0026gt;7, which means the solution is alkaline.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38008-content1.webp?v=1791331348\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003eThe Gravity: Analog pH Sensor \/ Meter Kit (SEN0161) and Gravity: Analog pH Sensor\/Meter Kit V2 (SEN0161-V2) are intended for testing inaboratory environments only, and the probes are subject todata drift after extended measurements. If you need to measure a solution for an extended period oftime, we recommend using the Gravity: 7\/24 Industrial Analog pH Meter Kit for Arduino or Gravity: 7\/24 Industrial Analog pH Meter Kit (Arduino, Raspberry Pi).\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e3.3~5.5V wide voltage input\u003c\/li\u003e\n\u003cli\u003eHardware filtered output signal, low jitter\u003c\/li\u003e\n\u003cli\u003eGravity connector and BNC connector, plug and play, no welding\u003c\/li\u003e\n\u003cli\u003eThe software library supports two-point calibration and automatically identifies standard buffer solution\u003c\/li\u003e\n\u003cli\u003eUniform size and connector, convenient for the design of mechanical structures\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecification\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eSignal Conversion Board (Transmitter) V2\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSupply Voltage: 3.3~5.5V\u003c\/li\u003e\n\u003cli\u003eOutput Voltage: 0~3.0V\u003c\/li\u003e\n\u003cli\u003eProbe Connector: BNC\u003c\/li\u003e\n\u003cli\u003eSignal Connector: PH2.0-3P\u003c\/li\u003e\n\u003cli\u003eMeasurement Accuracy: ±0.1@25℃\u003c\/li\u003e\n\u003cli\u003eDimension: 42mm*32mm\/1.66*1.26in\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003epH Probe\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eProbe Type: Laboratory Grade\u003c\/li\u003e\n\u003cli\u003eDetection Range: 0~14\u003c\/li\u003e\n\u003cli\u003eTemperature Range: 5~60°C\u003c\/li\u003e\n\u003cli\u003eZero Point: 7±0.5\u003c\/li\u003e\n\u003cli\u003eResponse Time: \u0026lt;2min\u003c\/li\u003e\n\u003cli\u003eInternal Resistance: \u0026lt;250MΩ\u003c\/li\u003e\n\u003cli\u003eProbe Life: \u0026gt;0.5 years (depending on the frequency of use)\u003c\/li\u003e\n\u003cli\u003eCable Length: 100cm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eShipping List\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003epH Probe(Laboratory Grade)  x1\u003c\/li\u003e\n\u003cli\u003epH Signal Conversion Board x1\u003c\/li\u003e\n\u003cli\u003eGravity Analog Sensor Cable x1\u003c\/li\u003e\n\u003cli\u003epH Standard Buffer Solution 4.0 x2\u003c\/li\u003e\n\u003cli\u003epH Standard Buffer Solution 7.0 x2\u003c\/li\u003e\n\u003cli\u003eWaterproof Gasket x2\u003c\/li\u003e\n\u003cli\u003eScrew Cap for BNC Connector x1\u003c\/li\u003e\n\u003cli\u003eM3 * 10 nylon pillar x4\u003c\/li\u003e\n\u003cli\u003eM3 * 5 screws x8\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDocuments\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/wiki.dfrobot.com\/sen0161-v2\/\" target=\"_blank\"\u003eProduct Wiki\u003c\/a\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFRobot","offers":[{"title":"Default Title","offer_id":67580996452429,"sku":"E38008-001","price":75.23,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38008-win2.jpg?v=1791331494"},{"product_id":"gravity-7-24-industrial-analog-ph-meter-kit-for-arduino","title":"Gravity: 7\/24 Industrial Analog pH Meter Kit for Arduino","description":"\u003ch2\u003eIntroduction\u003c\/h2\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eGravity: Analog pH Sensor \/ Meter Pro Kit For Arduino is a professional Arduino pH Sensor Meter Kit with an industrial electrode. The industrial ph sensor for Arduino has a built-in simple, convenient, practical connection and long life (up to 1 year), which makes it very suitable for long-term online monitoring. It has an LED that works as the Power Indicator, a BNC connector, and a PH2.0 sensor interface. To use it, just connect the pH sensor with the BND connector, then plug the PH2.0 interface into the analog input port of any Arduino controller. If programmed, you will get the pH value easily. You may also check Liquid Sensor Selection Guide to get better familiar with our liquid sensor series.\u003c\/p\u003e\n\u003cp\u003eThis industrial pH electrode is made of a sensitive glass membrane with low impedance. It can be used in a variety of PH measurements with fast response and excellent thermal stability. It has good reproducibility, is difficult to hydrolysis, and can eliminate basic alkali error. In 0pH to 14pH range, the output voltage is linear. The reference system which consists of the Ag\/AgCl gel electrolyte salt bridge has a stable half-cell potential and excellent anti-pollution performance. The ring PTFE membrane is not easy to be clogged, so the electrode is suitable for long-term online detection.\u003c\/p\u003e\n\u003cp\u003eYou can find its spare probe here: Industrial pH Probe.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003e\u003cspan style=\"color: #ff0000;\"\u003eAttention： \u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThe bottle cap of the probe contains protective liquid (3.3mol\/L KCL). Even if the bottle cap is screwed tightly, some protective liquid may still leak around the bottle cap, forming white crystals. But as long as there is still protective liquid in the bottle cap, it will not affect the life and accuracy of the probe. So please use it with confidence. It is recommended that the white crystals be poured back into the protective liquid in the bottle cap.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eNote:\u003c\/b\u003e After you received your package! You may find some white particles on the protection foam which is the KCl crystallization from the cap. Please don't worry about the crystallization in the packing box, that's normal. Actually, since the transportation restriction on liquid, we have poured out the KCL3N solution in the cap, the slight crystallization in the packing box should be leaked since the remnant. Anyway, once you received the probe, you should store it in the KCL3N solution, you can not leave it in dry circumstances.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eGood News:\u003c\/b\u003e Gravity: Analog pH Sensor \/ Meter Pro Kit V2 is available now. As an upgraded version, the secondary generation pH meter pro greatly improves the precision and user experience.\u003c\/p\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eWater Quality Surveillance\u003c\/li\u003e\n\u003cli\u003eAquaculture\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecification\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eModule Power: 5.00V\u003c\/li\u003e\n\u003cli\u003eModule Size : 43mmx32mm（1.70\"x1.26\")\u003c\/li\u003e\n\u003cli\u003eMeasuring Range:0-14PH\u003c\/li\u003e\n\u003cli\u003eMeasuring Temperature:0-60 ℃\u003c\/li\u003e\n\u003cli\u003eAccuracy : ± 0.1pH (25 ℃)\u003c\/li\u003e\n\u003cli\u003eResponse Time: ≤ 1min\u003c\/li\u003e\n\u003cli\u003eIndustry pH Electrode with BNC Connector\u003c\/li\u003e\n\u003cli\u003ePH2.0 Interface (3-foot patch )\u003c\/li\u003e\n\u003cli\u003eGain Adjustment Potentiometer\u003c\/li\u003e\n\u003cli\u003ePower Indicator LED\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eShipping List\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eIndustry pH electrode(BNC connector) x1\u003c\/li\u003e\n\u003cli\u003epH sensor circuit board x1\u003c\/li\u003e\n\u003cli\u003eAnalog cable x1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDocuments\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/wiki.dfrobot.com\/sen0169\/\" target=\"_blank\"\u003eProduct Wiki\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.dfrobot.com\/blog-21377.html\" target=\"_blank\"\u003e[Read the 2026 Hydroponic Monitoring Guide] — Expert tips on sensor selection and system design.\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/community.dfrobot.com\/projects-smart%20hydroponics.html\" target=\"_blank\"\u003e[Explore Smart Hydroponics Projects] — See how others integrated this sensor into their setup.\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.dfrobot.com\/forum\/search\/SEN0169-V2\" target=\"_blank\"\u003e[Get Troubleshooting Help] — Search technical discussions and fixes for this pH sensor.\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFRobot","offers":[{"title":"Default Title","offer_id":67581010149453,"sku":"E38009-001","price":105.44,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38009-win1.jpg?v=1791331748"},{"product_id":"gravity-analog-turbidity-sensor-for-arduino","title":"Gravity: Analog Turbidity Sensor for Arduino","description":"\u003ch2\u003eIntroduction\u003c\/h2\u003e\n\u003cp\u003eThe Arduino turbidity sensor detects water quality by measuring the level of turbidity. It is able to detect suspended particles in water by measuring the light transmittance and scattering rate which changes with the amount of total suspended solids (TSS) in water. As the TTS increases, the liquid turbidity level increases. \u003cspan\u003eYou may also check \u003c\/span\u003eLiquid Sensor Selection Guide\u003cspan\u003e to get better familiar with our liquid sensor series.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38011-content1.webp?v=1791332158\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003eThis Arduino turbidity sensor has both analog and digital signal output modes. You can select the mode according to the MCU as the threshold is adjustable in digital signal mode.\u003c\/p\u003e\n\u003cp\u003eTurbidity sensors can be used in the measurement of water quality in rivers and streams, wastewater and effluent measurements, sediment transport research, and laboratory measurements.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003ePlease note that the top of probe is not waterproof!\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eSpecification\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eOperating Voltage: 5V DC\u003c\/li\u003e\n\u003cli\u003eOperating Current: 40mA (MAX)\u003c\/li\u003e\n\u003cli\u003eResponse Time: \u0026lt;500ms\u003c\/li\u003e\n\u003cli\u003eInsulation Resistance: 100M (Min)\u003c\/li\u003e\n\u003cli\u003eOutput Method: Analog\/Digital\u003c\/li\u003e\n\u003cli\u003eAnalog Output: 0-4.5V\u003c\/li\u003e\n\u003cli\u003eDigital Output: High\/Low-level signal (you can adjust the threshold value by adjusting the potentiometer)\u003c\/li\u003e\n\u003cli\u003eOperating Temperature: 5℃~90 ℃\u003c\/li\u003e\n\u003cli\u003eStorage Temperature: -10℃~90℃\u003c\/li\u003e\n\u003cli\u003eWeight: 30g\u003c\/li\u003e\n\u003cli\u003eAdapter Dimensions: 38mm*28mm*10mm\/1.5inches *1.1inches*0.4inches\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eShipping List\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eTurbidity sensor adapter x1\u003c\/li\u003e\n\u003cli\u003eTurbidity sensor probe x1\u003c\/li\u003e\n\u003cli\u003eTurbidity sensor cable x1\u003c\/li\u003e\n\u003cli\u003eGravity analog sensor cable x1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDocuments\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/wiki.dfrobot.com\/sen0189\/\" target=\"_blank\"\u003eProduct Wiki\u003c\/a\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eCertifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eCE CE \u003ci\u003e\u003c\/i\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRoHS RoHS \u003ci\u003e\u003c\/i\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFRobot","offers":[{"title":"Default Title","offer_id":67581027156045,"sku":"E38011-001","price":29.91,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38011-win1.jpg?v=1791332359"},{"product_id":"uart-non-contact-optical-turbidity-sensor-for-arduino","title":"UART Non-contact Optical Turbidity Sensor for Arduino","description":"\u003ch2\u003eIntroduction\u003c\/h2\u003e\n\u003cp\u003eThis non-contact turbidity sensor detects water quality by measuring the level of turbidity. Based on the optics principle, it is capable of detecting the light transmittance and scattering rate of the liquid in transparent cylinder containers with a diameter of 40–50mm, which will then be output as an UART data frame within a certain range that reflects the level of liquid turbidity.\u003c\/p\u003e\n\u003cp\u003eThe turbidity sensor comes with two infrared probes, which should be oppositely installed on a container. And it detects when the liquid level inside is higher than the two probes. The sensor can measure without coming into contact with liquid, making it less susceptible to corrosion from water or chemicals.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38012-content1.webp?v=1791332540\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eInstallation\u003c\/b\u003e\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eNo mechanically moving parts, high reliability\u003c\/li\u003e\n\u003cli\u003eSmall size \u0026amp; low cost\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eWater quality monitoring system\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecification\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSupply Voltage: 5V\u003c\/li\u003e\n\u003cli\u003eCommunication Mode: UART-TTL\u003c\/li\u003e\n\u003cli\u003eApplicable Cylinder Container Diameter: 40 to 50mm\u003c\/li\u003e\n\u003cli\u003eBaud Rate: 9600\u003c\/li\u003e\n\u003cli\u003eOperating Current: less than 10mA\u003c\/li\u003e\n\u003cli\u003eResponse Time: less than 1s\u003c\/li\u003e\n\u003cli\u003eOperating Temperature: 5 to 60℃\u003c\/li\u003e\n\u003cli\u003eStorage Temperature: 0 to 65℃\u003c\/li\u003e\n\u003cli\u003eService Life: 50000h\u003c\/li\u003e\n\u003cli\u003eLight Source: Infrared Light (IR)\u003c\/li\u003e\n\u003cli\u003eWavelength: 950 nm\u003c\/li\u003e\n\u003cli\u003eColor Interference: High\u003c\/li\u003e\n\u003cli\u003eProbe material: Polycarbonate (PC)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eShipping List\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eTurbidity Sensor × 1\u003c\/li\u003e\n\u003cli\u003eGravity: 4Pin Sensor Adapter × 1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDocuments\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/wiki.dfrobot.com\/sen0554\/\" target=\"_blank\"\u003eProduct Wiki\u003c\/a\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFRobot","offers":[{"title":"Default Title","offer_id":67581047636045,"sku":"E38012-001","price":24.17,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38012-win2.jpg?v=1791332608"},{"product_id":"gravity-analog-water-pressure-sensor","title":"Gravity: Analog Water Pressure Sensor","description":"\u003ch2\u003eIntroduction\u003c\/h2\u003e\n\u003cp\u003eThis is a water pressure sensor adopts DFRobot Gravity 3-pin interface. It supports standard 5V voltage input and 0.5~4.5V linear voltage output. It is compatible with multiple Arduino controllers.\u003c\/p\u003e\n\u003cp\u003eCoordinate with a DFRobot Gravity IO Expansion Shield, the water pressure sensor can be plugged into an Arduino board, wiring-free. Put it with Solenoid Valve, Water Turbine Generator and other sensors, you can build a smart water control system. \u003cspan\u003eYou may also check \u003c\/span\u003eLiquid Sensor Selection Guide\u003cspan\u003e to get better familiar with our liquid sensor series.\u003c\/span\u003e\u003cbr\u003eBriefly speaking, this water pressure sensor is a stethoscope to a water pipe. It will help you to diagnose whether there is water, and how strong the water pressure is. It can be widely applied to smart home control systems (SCS), Internet of Things (IoT), and device detections.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38013-content1.webp?v=1791332781\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eConnection Diagram(Arduino)\u003c\/b\u003e\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSupport water pressure detection of living environmental water systems, such as houses, gardens, and farms.\u003c\/li\u003e\n\u003cli\u003eSupport water pressure detection of the outdoor environments, such as rivers, lakes, and the sea.\u003c\/li\u003e\n\u003cli\u003eSupport water pressure detection of tanks;\u003c\/li\u003e\n\u003cli\u003eSupport liquid level detection in special situation detection in specified liquid;\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecification\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eMedium: liquid\/gas without corrosion\u003c\/li\u003e\n\u003cli\u003eWiring: Gravity-3Pin (Signal-VCC-GND)\u003c\/li\u003e\n\u003cli\u003ePressure Measurement Range: 0~1.6 Mpa\u003c\/li\u003e\n\u003cli\u003eInput Voltage: +5 VDC\u003c\/li\u003e\n\u003cli\u003eOutput Voltage: 0.5~4.5 V\u003c\/li\u003e\n\u003cli\u003eMeasurement Accuracy: 0.5%~1%FS (0.5%, 0~55°C)\u003c\/li\u003e\n\u003cli\u003eThreadably: G1\/4\u003c\/li\u003e\n\u003cli\u003eAdapter: G1\/2 to G1\/4\u003c\/li\u003e\n\u003cli\u003eWaterproof level: IP68\u003c\/li\u003e\n\u003cli\u003eOperating Temperature: -20~85°C\u003c\/li\u003e\n\u003cli\u003eResponse Time: \u0026lt;2.0 ms\u003c\/li\u003e\n\u003cli\u003eQuiescent Current: 2.8 mA\u003c\/li\u003e\n\u003cli\u003eNormal Operating Pressure: ≤2.0 Mpa\u003c\/li\u003e\n\u003cli\u003eDamaged Pressure: ≥3.0Mpa\u003c\/li\u003e\n\u003cli\u003eService Life: 10’000’000 times\u003c\/li\u003e\n\u003cli\u003eLine length: 1m\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eShipping List\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eGravity: Analog Water Pressure Sensor x1\u003c\/li\u003e\n\u003cli\u003eG1\/2 to G1\/4 Connector (mounted) x1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDocuments\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/wiki.dfrobot.com\/sen0257\/\" target=\"_blank\"\u003eProduct Wiki\u003c\/a\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFRobot","offers":[{"title":"Default Title","offer_id":67581057171533,"sku":"E38013-001","price":29.61,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38013-win1.jpg?v=1791332807"},{"product_id":"gravity-industrial-stainless-steel-submersible-pressure-level-sensor0-5m","title":"Gravity: Industrial Stainless Steel Submersible Pressure Level Sensor(0~5m)","description":"\u003ch2\u003eIntroduction\u003c\/h2\u003e\n\u003cp\u003eThis industrial stainless steel submersible pressure level sensor adopts high-performance pressure sensing chip, with advanced circuit processing and temperature compensation technology. The submersible pressure level sensor receives different pressures at different depths of liquid, which can be converted into corresponding current signals and output through the sensor. In this way, the depth of liquid can be measured.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eMeasuring Range: 0-5m\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38014-content1.webp?v=1791333190\" alt=\"\"\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThe shell of the pressure level sensor is made of stainless steel, anti-corrosion and easy to clean. It can be directly placed in the liquid like water, oil or even mash with large viscosity. This product can provide a steady performance in all sorts of measurement conditions such as river, reservoir, city water supply, groundwater in urban, and basin.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eIP68\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38014-content2.webp?v=1791333213\" alt=\"\"\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eWe sold this product together with our Gravity: Analog Current to Voltage Converter. The converter can convert current into voltage signal which can be read by your Arduino controllers or other controllers. The stainless steel submersible pressure level sensor can be used in waterworks, refinery, sewage disposal work, construction, light industry, mechanical and so on.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eNotes: \u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e1. Please connect the power supply exactly as the connection instruction.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e2. The product is a precision device, so it is not allowed to disassemble and crash the device or make it fall from the high place, what’s more, don’t touch its diaphragm with any sharp objects in case of causing device damage.\u003c\/p\u003e\n\u003cp\u003e3. Power the submersible pressure level sensor up then you can use it. But it can provide more steady output after preheating for 30 minutes. Please turn off the power and stop using if any abnormality is found during use.\u003c\/p\u003e\n\u003cp\u003e4. The liquid level lead should be vertically downward. Please prevent water from entering the terminal, and the joint is required to be waterproof.\u003c\/p\u003e\n\u003cp\u003e5. Place the liquid level probe in water, try to fix it and keep it away from the inlet.\u003c\/p\u003e\n\u003cp\u003e\u003cimg\u003e \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38014-content3.webp?v=1791333265\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38014-content4.webp?v=1791333282\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch2\u003eSpecification\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eCable Length: 5m\u003c\/li\u003e\n\u003cli\u003eMeasuring Range: 0-5m\u003c\/li\u003e\n\u003cli\u003eAccuracy: 0.5%\u003c\/li\u003e\n\u003cli\u003eOutput Signal: 4-20mA\u003c\/li\u003e\n\u003cli\u003eOperating Voltage: 12-36V\u003c\/li\u003e\n\u003cli\u003eOperating Temperature: -20℃-70℃\u003c\/li\u003e\n\u003cli\u003eOverload Capacity: 300%\u003c\/li\u003e\n\u003cli\u003eService Life: 1*10^8 Pressure Circulation (25℃)\u003c\/li\u003e\n\u003cli\u003eMembrane Material: 316L Stainless Steel\u003c\/li\u003e\n\u003cli\u003eCasing Material: 304 Stainless Steel\u003c\/li\u003e\n\u003cli\u003eProtection Class: \u003cb\u003eIP68\u003c\/b\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eShipping List\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eGravity: Industrial Stainless Steel Submersible Pressure Level Sensor(0~5m) x1\u003c\/li\u003e\n\u003cli\u003eGravity: Analog Current to Voltage Converter(for 4~20mA Application) (SEN0262) x1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDocuments\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eProduct Wiki\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFRobot","offers":[{"title":"Default Title","offer_id":67581071786061,"sku":"E38014-001","price":90.64,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38014-win1.jpg?v=1791333297"},{"product_id":"gravity-analog-tds-sensor-meter-for-arduino","title":"Gravity: Analog TDS Sensor\/ Meter for Arduino","description":"\u003ch2\u003eIntroduction\u003c\/h2\u003e\n\u003cp\u003eGravity: Analog TDS Sensor\/Meter for Arduino is an Arduino-compatible TDS Meter Kit for measuring TDS value of the water, to reflect the cleanliness of the water. TDS meter can be applied to domestic water, hydroponic and other fields of water quality testing.\u003c\/p\u003e\n\u003cp\u003eTDS (Total Dissolved Solids) indicates that how many milligrams of soluble solids dissolved in one liter of water. In general, the higher the TDS value, the more soluble solids dissolved in water, and the less clean the water is. Therefore, the TDS value can be used as one of the references for reflecting the cleanliness of water.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38015-content1.webp?v=1791333817\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e(Cited from Google)\u003c\/p\u003e\n\u003cp\u003eFor this application, we have launched an analog TDS sensor kit that is compatible with Arduino, plug, and play, easy to use. Matching with Arduino controller, you can build a TDS detector easily to measure the TDS value of liquid.\u003c\/p\u003e\n\u003cp\u003eThis tds sensor supports 3.3 ~ 5.5V wide voltage input, and 0 ~ 2.3V analog voltage output, which makes it compatible with a 5V or 3.3V control system or board. The excitation source is an AC signal, which can effectively prevent the probe from polarization and prolong the life of the probe, meanwhile, increase the stability of the output signal. The TDS probe is waterproof, it can be immersed in water for a long time measurement.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38015-content2.webp?v=1791333868\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cb\u003e\u003cspan style=\"color: #ff9c00;\"\u003e Attention:\u003c\/span\u003e\u003c\/b\u003e\u003cbr\u003e1.The probe can not be used in water above 55 degrees centigrade.\u003cbr\u003e2.The probe can not be left too close to the edge of the container, otherwise, it will affect the reading.\u003cbr\u003e3.The head and the cable of the probe are waterproof, but the connector and the signal transmitter board are not waterproof. Please be careful.\u003c\/p\u003e\n\u003cp\u003eMonitor TDS trends from 0 to 1000ppm after calibration. TDS alone cannot determine whether water is safe to drink and does not identify bacteria or specific contaminants. The probe may be immersed as documented; keep the signal board and connector dry. Temperature compensation requires a separate temperature measurement. Raspberry Pi projects also need an appropriate ADC.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eWide Voltage Input: 3.3~5.5V\u003c\/li\u003e\n\u003cli\u003eGood Compatibility Output: 0~2.3V analog signal output, compatible with 5V or 3.3V controller\u003c\/li\u003e\n\u003cli\u003eAC Excitation Source: effectively prevent the probe from polarization\u003c\/li\u003e\n\u003cli\u003eWaterproof Probe\u003c\/li\u003e\n\u003cli\u003eEasy to Use: Arduino compatible, simple connection, plug, and play without soldering\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecification\u003c\/h2\u003e\n\u003cp\u003eSignal Transmitter Board\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eInput Voltage: 3.3 ~ 5.5V\u003c\/li\u003e\n\u003cli\u003eOutput Voltage: 0 ~ 2.3V\u003c\/li\u003e\n\u003cli\u003eWorking Current: 3 ~ 6mA\u003c\/li\u003e\n\u003cli\u003eTDS Measurement Range: 0 ~ 1000ppm\u003c\/li\u003e\n\u003cli\u003eTDS Measurement Accuracy: ± 10% F.S. (25 ℃)\u003c\/li\u003e\n\u003cli\u003eModule Size: 42 * 32mm\u003c\/li\u003e\n\u003cli\u003eModule Interface: PH2.0-3P\u003c\/li\u003e\n\u003cli\u003eElectrode Interface: XH2.54-2P\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003eTDS probe\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eNumber of Needles: 2\u003c\/li\u003e\n\u003cli\u003eTotal Length: 83cm\u003c\/li\u003e\n\u003cli\u003eConnection Interface: XH2.54-2P\u003c\/li\u003e\n\u003cli\u003eColor: Black\u003c\/li\u003e\n\u003cli\u003eOther: Waterproof Probe\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eShipping List\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eAnalog TDS Meter for Arduino x1\u003c\/li\u003e\n\u003cli\u003eWaterproof TDS Probe x1\u003c\/li\u003e\n\u003cli\u003e3Pin Analog Sensor Cable x1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDocuments\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/wiki.dfrobot.com\/sen0244\/\" target=\"_blank\"\u003eProduct Wiki\u003c\/a\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFRobot","offers":[{"title":"Default Title","offer_id":67581108093005,"sku":"E38015-001","price":23.57,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38015-win1.jpg?v=1791333901"},{"product_id":"mmwave-80ghz-liquid-level-detection-sensor-40-meters-uart","title":"mmWave - 80GHz Liquid Level Detection Sensor (40 Meters, UART)","description":"\u003ch2\u003eIntroduction\u003c\/h2\u003e\n\u003cp\u003eThis \u003cb\u003e80GHz millimeter-wave sensor\u003c\/b\u003e is a high-performance radar module engineered for precise, non-contact liquid level detection. It operates on the principle of Frequency Modulated Continuous Wave (\u003cb\u003eFMCW) radar\u003c\/b\u003e, enabling it to deliver highly accurate measurements over a significant distance. The sensor's core strengths are its \u003cb\u003e40-meter long-range capability\u003c\/b\u003e, exceptional millimeter-level accuracy, and robust performance in challenging environments. Key specifications include a ±5mm accuracy, a narrow ±3° beam angle provided by a pre-installed lens, and a UART (Modbus) communication interface. It is designed for demanding applications such as smart water management, industrial process control, and environmental disaster prevention.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eExceptional Long-Range \u0026amp; High-Precision Measurement \u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThe liquid level sensor provides a remarkable measurement range from 0.15m up to 40m, making it suitable for monitoring large bodies of water like reservoirs and rivers, as well as deep industrial tanks. This extensive range is coupled with a high-precision ranging capability, featuring an accuracy of ±5mm and a resolution of 1mm. This combination ensures that the data collected is both reliable and granular, which is critical for applications requiring precise control and timely alerts.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eFocused Detection with Narrow Beam Lens \u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eEquipped with a custom-engineered lens, the radar module emits a highly focused radar beam with a narrow ±3° angle. This focused energy concentration significantly enhances signal directivity and reduces interference from tank walls, agitators, or other surrounding structures. The result is a more stable and accurate reading, even in complex or confined spaces, ensuring the sensor only measures the intended liquid surface.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eRobust Performance with Advanced FMCW Technology \u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eUtilizing FMCW modulation, the mmWave detection sensor exhibits superior immunity to environmental interference. Its performance is unaffected by ambient factors such as temperature fluctuations, pressure changes, fog, mist, or dust. An integrated anti-interference algorithm further ensures stable operation in environments with strong reflections or multiple targets. This robustness makes it a dependable solution for outdoor installations and harsh industrial conditions where other technologies might fail.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eNon-Contact, Maintenance-Free Operation \u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThe mmWave sensor is installed above the liquid surface, eliminating any physical contact with the medium being measured. This non-contact approach is a significant advantage when monitoring corrosive, hazardous, or high-purity liquids, as it prevents sensor corrosion and fluid contamination. This design not only extends the service life of the module but also minimizes the need for maintenance, reducing the total cost of ownership.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38016-content1.webp?v=1791342997\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSmart water management: Real-time river\/reservoir\/groundwater level monitoring\u003c\/li\u003e\n\u003cli\u003eUrban infrastructure: Sewage pipeline overflow warning, rainwater collection system management\u003c\/li\u003e\n\u003cli\u003eDisaster prevention: Liquid level alarms for mountain torrent\/debris flow monitoring stations\u003c\/li\u003e\n\u003cli\u003eIndustrial monitoring: Non-contact liquid level measurement for chemical storage tanks \u0026amp; wastewater treatment pools\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecification\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eTransmit frequency: 77–81GHz, 4GHz bandwidth\u003c\/li\u003e\n\u003cli\u003eOutput power (EIRP): 13–20dBm\u003c\/li\u003e\n\u003cli\u003eBeamwidth (-3dB): Horizontal ±25°, Vertical ±25°\u003c\/li\u003e\n\u003cli\u003eBeamwidth (-3dB) with external lens: Horizontal ±3°, Vertical ±3°\u003c\/li\u003e\n\u003cli\u003eModulation mode: FMCW\u003c\/li\u003e\n\u003cli\u003eRanging range: 0.15–40m\u003c\/li\u003e\n\u003cli\u003eAccuracy: ±5mm\u003c\/li\u003e\n\u003cli\u003eResolution: 1mm\u003c\/li\u003e\n\u003cli\u003eStartup time: 100ms (fastest)\u003c\/li\u003e\n\u003cli\u003eOperating voltage: 3.5–5V\u003c\/li\u003e\n\u003cli\u003eOperating current: 30mA\u003c\/li\u003e\n\u003cli\u003eOutput: UART (Modbus protocol)\u003c\/li\u003e\n\u003cli\u003eOperating temperature: -45°C to +85°C\u003c\/li\u003e\n\u003cli\u003eModule dimensions: 35×35×1.2mm\u003c\/li\u003e\n\u003cli\u003eModule weight: 5g\u003c\/li\u003e\n\u003cli\u003eWeight with installed lens: 46g\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eShipping List\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e80GHz Liquid Level Millimeter Wave Radar Module (with lens) ×1\u003c\/li\u003e\n\u003cli\u003e1.25mm 6-pin to bare wire cable ×1\u003c\/li\u003e\n\u003cli\u003e1.25mm 6-pin to Dupont connector cable ×1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDocuments\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/wiki.dfrobot.com\/sen0676\/\" target=\"_blank\"\u003eProduct Wiki\u003c\/a\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFRobot","offers":[{"title":"Default Title","offer_id":67581886070861,"sku":"E38016-001","price":120.55,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38016-win1.jpg?v=1791343034"},{"product_id":"gravity-tipping-bucket-rainfall-sensor-i2c-uart","title":"Gravity: Tipping Bucket Rainfall Sensor - I2C \u0026 UART","description":"\u003ch2\u003eIntroduction\u003c\/h2\u003e\n\u003cp\u003eThis DFRobot rainfall sensor is a reliable and convenient tool for measuring rainfall.\u003c\/p\u003e\n\u003cp\u003eBased on the principle of tipping bucket rainfall, the rainfall sensor provides users with rainfall values in millimeters and system operating time. The sensor has no electronic components inside and features a hollow bottom design that allows rainwater to automatically drain, making it more stable and sensitive.\u003c\/p\u003e\n\u003cp\u003eIt supports I2C and UART data outputs, compatible with micro:bit, Arduino, ESP32, Raspberry Pi. Integrated with the easy-to-use Gravity interface, this rainfall sensor can be used to set up a rain monitoring system easily with the provided ready-to-go libraries. The tipping bucket rainfall sensor can provide high-quality rainfall data for weather stations, environmental monitoring stations, or smart farms.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eWhat is a tipping bucket rainfall sensor? \u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThe tipping bucket rainfall sensor is one of the commonly used precipitation monitoring devices in meteorological observations. It consists of a collection container and a measuring mechanism. During rainfall, water enters the collection container through the top inlet and flows into the tipping bucket through a funnel. When a certain amount of water accumulates, the tipping bucket loses its balance and tips over, generating a pulse signal with each tip. By recording the number of pulse signals, the controller can calculate the rainfall amount.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003e\u003cspan style=\"color: #ff0000;\"\u003eNote:\u003c\/span\u003e\u003c\/b\u003e The signal adapter board is not waterproof. Do not expose the signal adapter board to rain.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38017-content1.webp?v=1791343242\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eMeasures rainfall in millimeters and system operating time\u003c\/li\u003e\n\u003cli\u003eNo electronic components inside\u003c\/li\u003e\n\u003cli\u003eHollow bottom design for automatic drainage\u003c\/li\u003e\n\u003cli\u003eSupports I2C and UART data outputs\u003c\/li\u003e\n\u003cli\u003eCompatible with micro:bit, Arduino, ESP32, Raspberry Pi\u003c\/li\u003e\n\u003cli\u003eIntegrated with Gravity interface\u003c\/li\u003e\n\u003cli\u003eReady-to-go libraries for easy setup of rain monitoring system\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eWeather monitoring\u003c\/li\u003e\n\u003cli\u003eEnvironmental monitoring\u003c\/li\u003e\n\u003cli\u003eSmart farming\u003c\/li\u003e\n\u003cli\u003eResearch and education\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecification\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eWorking Voltage: 3.3 to 5.5V DC\u003c\/li\u003e\n\u003cli\u003eWorking Current: ＜3mA\u003c\/li\u003e\n\u003cli\u003eOutput Signal: I2C\/UART\u003c\/li\u003e\n\u003cli\u003eResolution: 0.28mm\u003c\/li\u003e\n\u003cli\u003eOperating Temperature: -40 to 85°C\u003c\/li\u003e\n\u003cli\u003ePCB Size: 32mm x 37mm\/1.26 x 1.46 inches\u003c\/li\u003e\n\u003cli\u003eTipping Bucket Size: 118mm*59mm*80mm\/4.65 x 2.32 x 3.15inches\u003c\/li\u003e\n\u003cli\u003eMounting Hole Size: 3.1mm\u003c\/li\u003e\n\u003cli\u003eWeight: 119g (Tipping bucket), 5.3g (PCB)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eShipping List\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eGravity: Tipping Bucket rainfall Sensor x1\u003c\/li\u003e\n\u003cli\u003eSignal Adapter x1\u003c\/li\u003e\n\u003cli\u003eGravity-4P I2C\/UART Sensor Connector x1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDocuments\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/wiki.dfrobot.com\/sen0575\/\" target=\"_blank\"\u003eProduct Wiki\u003c\/a\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFRobot","offers":[{"title":"Default Title","offer_id":67581910515789,"sku":"E38017-001","price":60.12,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38017-win3.jpg?v=1791343261"},{"product_id":"non-contact-ip65-capacitive-liquid-level-sensor-for-arduino","title":"Non-contact IP65 Capacitive Liquid Level Sensor for Arduino","description":"\u003ch2\u003eIntroduction\u003c\/h2\u003e\n\u003cp\u003eThis non-contact capacitive sensor accurately detects liquid levels from the outside of non-metallic containers such as plastic, glass, or ceramic. By sensing changes in capacitance, it determines the presence of fluid without any direct contact, making it ideal for sealed containers or corrosive liquids. Key features include adjustable sensitivity, a real-time status indicator, and an \u003cb\u003eIP65\u003c\/b\u003e waterproof rating. With a wide \u003cb\u003e5~12V operating voltage\u003c\/b\u003e and easy integration with platforms like Arduino, this reliable liquid sensor is an excellent solution for projects like automatic water dispensers, smart aquarium controls, and industrial fluid monitoring.\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eNon-Contact \u0026amp; Hygienic Detection \u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThe non-contact water sensor's primary advantage is its non-contact design. It mounts to the exterior of a container, meaning it never touches the liquid inside. This non-invasive method prevents contamination of the fluid and protects the sensor from corrosion by harsh chemicals like strong acids and alkalis. It makes the sensor an excellent choice for sealed containers, food-grade applications, and for detecting the level of high-temperature liquids like boiling water. The IP65 waterproof rating ensures durability in various environments.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eHigh Compatibility \u0026amp; Versatility \u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eEngineered for broad applicability, this Arduino liquid level sensor can penetrate a wide range of non-metallic materials, including plastic, glass, and ceramic, with a wall thickness of up to 20mm. Its design is effective on various surfaces, whether flat, curved, or cylindrical, making it suitable for tanks, containers, and pipes with an outer diameter of 11mm or more. A wide operating voltage of 5~12V ensures seamless integration with a multitude of circuits and microcontrollers, including Arduino.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eAdjustable Sensitivity \u0026amp; Stable Performance \u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eTo ensure accurate detection across different materials and container thicknesses, the water dispenser sensor features adjustable sensitivity. This allows for fine-tuning to achieve optimal performance and reliability in any specific setup. Built with a pure electronic circuit and a non-mechanical structure, it offers high stability and a long operational lifespan. The design incorporates special treatment for power frequency and common mode interference, providing strong resistance to external electromagnetic noise.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eReal-Time Status Indication \u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eAn integrated status indicator provides immediate visual feedback on the liquid level. This onboard light signals when the liquid has reached the sensor's detection point, simplifying the process of installation, debugging, and real-time monitoring. The IP65 liquid level sensor outputs a simple high-level digital signal, making it straightforward to collect data with a microcontroller for automated control systems.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38018-content1.webp?v=1791343599\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38018-content2.webp?v=1791343617\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38018-content3.webp?v=1791343628\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eBuilding an automatic water dispenser or a self-refilling pet water bowl.\u003c\/li\u003e\n\u003cli\u003eCreating a smart water level management system for an aquarium or a hydroponics setup.\u003c\/li\u003e\n\u003cli\u003eImplementing a high\/low-level alarm for a water tank or sump pump.\u003c\/li\u003e\n\u003cli\u003eMonitoring fluid levels in industrial or laboratory settings without risking contamination or sensor damage.\u003c\/li\u003e\n\u003cli\u003eSaving Plants - DIY Plant Watering Device: To avoid ending up with yellow and dead leaves, this project introduces the idea of making an auto plant watering device to save the plants.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ciframe width=\"1102\" height=\"620\" src=\"https:\/\/www.youtube.com\/embed\/eqhAIgh_mZU\" title=\"How The Capacitive Liquid Level Sensor Works\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch2\u003eSpecification\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eOperating Voltage: 5V ~ 12V DC\u003c\/li\u003e\n\u003cli\u003eOutput Signal: Digital (High\/Low Level)\u003c\/li\u003e\n\u003cli\u003eResponse Time: 500 ms\u003c\/li\u003e\n\u003cli\u003eOperating Temp.: -5°C ~ 105°C\u003c\/li\u003e\n\u003cli\u003eAccuracy: ± 1.5 mm\u003c\/li\u003e\n\u003cli\u003eSensing Thickness: ≤ 20 mm\u003c\/li\u003e\n\u003cli\u003eMin. Pipe Diameter: ≥ 11 mm\u003c\/li\u003e\n\u003cli\u003eResponse Time: 500ms\u003c\/li\u003e\n\u003cli\u003eWaterproof Rating: IP65\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eShipping List\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eNon-contact Capacitive Liquid Level Sensor for Container OD\u0026gt;11mm x1\u003c\/li\u003e\n\u003cli\u003e4Pin Sensor Adapter x1\u003c\/li\u003e\n\u003cli\u003eScrewdriver x1\u003c\/li\u003e\n\u003cli\u003eCable Tie Black x1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDocuments\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/wiki.dfrobot.com\/sen0368\/\" target=\"_blank\"\u003eProduct Wiki\u003c\/a\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFRobot","offers":[{"title":"Default Title","offer_id":67581945315405,"sku":"E38018-001","price":22.66,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38018-win4.jpg?v=1791343850"},{"product_id":"gravity-analog-orp-sensor-meter-for-arduino","title":"Gravity: Analog ORP Sensor Meter for Arduino","description":"\u003ch2\u003eIntroduction\u003c\/h2\u003e\n\u003cp\u003eIn the ever-increasing need and awareness for health and safety, water has become a focus point for proper disinfection treatment as aftereffects of industrialization can become a danger for contamination of water via direct contact. Water is a critical control point of contact where proper treatment can greatly reduce these microbes, thereby reducing the chances of illness and pollution.  \u003c\/p\u003e\n\u003cp\u003eWhile traditional ORP meters are hard to get or use, this Analog ORP Meter is a highly compact ORP monitoring system that fits into your Arduino. This design configuration allows the user to accurately monitor ORP without having to add any additional circuitry or components to your design. Communication with the Analog ORP Meter is done using only simple wiring and programming. You may also check Liquid Sensor Selection Guide to get better familiar with our liquid sensor series.\u003c\/p\u003e\n\u003cp\u003eORP (Oxidation-Reduction Potential) is a measure of the ability of oxidation and reduction of the aqueous solution, characterization of oxidizing or reducing the relative degree. Unlike a pH measurement that follows a logarithmic curve and therefore requires more calibration adjustments, ORP follows a linear relationship and does not need instrument adjustment as much as it needs electrode maintenance. ORP has proven to be a reliable method of measuring water quality and provides the operator with a single value of measurement regardless of which product, commodity, operation, treatment, or sanitizer is used, and regardless of varying field conditions or methods by which chemical is applied.  \u003c\/p\u003e\n\u003cp\u003e\u003cb\u003e\u003cspan style=\"color: #ff0000;\"\u003eAttention： \u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThe bottle cap of the probe contains protective liquid (3.3mol\/L KCL). Even if the bottle cap is screwed tightly, some protective liquid may still leak around the bottle cap, forming white crystals. But as long as there is still protective liquid in the bottle cap, it will not affect the life and accuracy of the probe. So please use it with confidence. It is recommended that the white crystals be poured back into the protective liquid in the bottle cap.\u003c\/p\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eWater Quality Testing\u003c\/li\u003e\n\u003cli\u003eAquaculture\u003c\/li\u003e\n\u003cli\u003eMarine Science\u003c\/li\u003e\n\u003cli\u003eHydroponic Gardening\u003c\/li\u003e\n\u003cli\u003eGeneral Chemistry\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecification\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eModule Power:+5.00V\u003c\/li\u003e\n\u003cli\u003eModule Size: 40mmX27mm(1.57\"x1.06\")\u003c\/li\u003e\n\u003cli\u003eMeasuring Range:-2000mV—2000mV\u003c\/li\u003e\n\u003cli\u003eSuitable Temperature:5-70℃\u003c\/li\u003e\n\u003cli\u003eAccuracy:±10mv (25 ℃)\u003c\/li\u003e\n\u003cli\u003eResponse Time:≤20sec\u003c\/li\u003e\n\u003cli\u003eORP Probe with BNC Connector\u003c\/li\u003e\n\u003cli\u003ePH2.0 Interface(3 foot patch)\u003c\/li\u003e\n\u003cli\u003eZero calibration button\u003c\/li\u003e\n\u003cli\u003ePower Indicator LED\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eShipping List\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eORP probe (BNC connector) x1\u003c\/li\u003e\n\u003cli\u003eORP probe circuit board x1\u003c\/li\u003e\n\u003cli\u003eAnalog cable x1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDocuments\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/wiki.dfrobot.com\/sen0165\/\" target=\"_blank\"\u003eProduct Wiki\u003c\/a\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFRobot","offers":[{"title":"Default Title","offer_id":67582006296653,"sku":"E38019-001","price":165.87,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38019-win1.jpg?v=1791344461"},{"product_id":"gravity-non-contact-digital-liquid-level-sensor-for-arduino","title":"Gravity: Non-contact Digital Liquid Level Sensor for Arduino","description":"\u003ch2\u003eIntroduction\u003c\/h2\u003e\n\u003cp\u003eThis is a non-contact water \/ liquid level sensor for Arduino. It utilizes advanced signal processing technology to achieve non-contact liquid level detection.No contact with liquid makes the module suitable for hazardous applications such as detecting toxic substances, strong acid, strong alkali, and all kinds of liquid in an airtight container under high pressure. There are no special requirements for the liquid or container and this liquid sensor is easy to use and easy to install. You may also check Liquid Sensor Selection Guide to get better familiar with our liquid sensor series.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38020-content1.webp?v=1791344676\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003eThe liquid level sensor is equipped with an interface adapter that makes it compatible with DFRobot \"Gravity\" interface. The sensitivity can be adjusted via the potentiometer knob on the back of the sensor.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38020-content2.webp?v=1791344693\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch2\u003eSpecification\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eOperating Voltage (InVCC): DC 5 ~ 24 v\u003c\/li\u003e\n\u003cli\u003eCurrent consumption: 5 mA\u003c\/li\u003e\n\u003cli\u003eOutput voltage (high level): InVCC\u003c\/li\u003e\n\u003cli\u003eOutput voltage (low level): 0V\u003c\/li\u003e\n\u003cli\u003eOutput current: 1 ~ 50 mA\u003c\/li\u003e\n\u003cli\u003eResponse time: 500 ms\u003c\/li\u003e\n\u003cli\u003eOperating Temperature: 0 ~ 105 ℃\u003c\/li\u003e\n\u003cli\u003eRange for thickness of induction (sensitivity): 0 ~ 13 mm\u003c\/li\u003e\n\u003cli\u003eHumidity: 5% ~ 100%\u003c\/li\u003e\n\u003cli\u003eMaterial: ABS.\u003c\/li\u003e\n\u003cli\u003eWaterproof performance: IP67\u003c\/li\u003e\n\u003cli\u003eDimension: 28 * 28 mm \/ 1.1 * 1.1 inches\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eShipping List\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eLiquid Level Sensor Probe x1\u003c\/li\u003e\n\u003cli\u003eLiquid Level Sensor Adapter x1\u003c\/li\u003e\n\u003cli\u003eGravity Digital 3-Pin Cable x1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDocuments\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/wiki.dfrobot.com\/sen0204\/\" target=\"_blank\"\u003eProduct Wiki\u003c\/a\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFRobot","offers":[{"title":"Default Title","offer_id":67582025957453,"sku":"E38020-001","price":23.87,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38020-win1.jpg?v=1791344722"},{"product_id":"gravity-photoelectric-high-accuracy-liquid-level-sensor-for-arduino","title":"Gravity: Photoelectric High Accuracy Liquid Level Sensor for Arduino","description":"\u003ch2\u003eIntroduction\u003c\/h2\u003e\n\u003cp\u003eThis is a photoelectric water liquid level sensor that is operates using optical principles. The advantages of this photoelectric water liquid level sensor are good sensitivity and no need for mechanical parts - meaning less calibration! The corrosion resistant probe is easily mounted and can handle high temperature and high pressure.\u003c\/p\u003e\n\u003cp\u003eThe arduino liquid sensor is equipped with an interface adapter for compatibility with the DFRobot \"Gravity\" interface. To ease the difficulty of using this arduino liquid sensor,  a  Gravity Interface is adapted to allow plug\u0026amp;play.  The Arduino IO expansion shield  is the best match for this senor connecting to  Arduino\u003cspan\u003e. As this liquid sensor is able to work at 3.3V which makes it compatible with Raspberry Pi,  intel edison\u003cspan\u003e, joule and curie.\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38021-content1.webp?v=1791344843\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eConnection Diagram\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38021-content2.webp?v=1791344899\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38021-content3.webp?v=1791344920\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38021-content4.webp?v=1791344935\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003e \u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eInstallation\u003c\/p\u003e\n\u003cp\u003e\u003cimg\u003e\u003cspan style=\"color: #ff9c00;\"\u003e Note:\u003c\/span\u003e Avoid placing the sensor near bright lights or in direct sunlight as these can cause interference.\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003eSpecification\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eModel: FS-IR02\u003c\/li\u003e\n\u003cli\u003eType: Photoelectric liquid level sensor\u003c\/li\u003e\n\u003cli\u003eOperating voltage: 5 VDC\u003c\/li\u003e\n\u003cli\u003eOutput current: 12 mA\u003c\/li\u003e\n\u003cli\u003eWorking temperature: - 25 ~ 105 ℃\u003c\/li\u003e\n\u003cli\u003eLow level output: \u0026lt; 0.1 V\u003c\/li\u003e\n\u003cli\u003eHigh level output: \u0026gt; 4.6 V\u003c\/li\u003e\n\u003cli\u003eLiquid level detection accuracy: \u003cb\u003e±0.5 mm\u003c\/b\u003e\n\u003c\/li\u003e\n\u003cli\u003eMaterial: PC\u003c\/li\u003e\n\u003cli\u003eMeasuring range: No limit\u003c\/li\u003e\n\u003cli\u003eLife: \u003cb\u003e50,000 hours\u003c\/b\u003e\n\u003c\/li\u003e\n\u003cli\u003eDimension: 28 x 28 mm\/ 1.1 x 1.1 inches\u003c\/li\u003e\n\u003cli\u003eCable Length: 450mm\u003c\/li\u003e\n\u003cli\u003eWeight: 26g\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eShipping List\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eLiquid Level Sensor-FS-IR02 probe x1\u003c\/li\u003e\n\u003cli\u003eLiquid Level Sensor convert board x1\u003c\/li\u003e\n\u003cli\u003ePH2.0-3P Cable\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDocuments\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/wiki.dfrobot.com\/sen0205\/\" target=\"_blank\"\u003eProduct Wiki\u003c\/a\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFRobot","offers":[{"title":"Default Title","offer_id":67582028546125,"sku":"E38021-001","price":15.43,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38021-win1.jpg?v=1791344974"},{"product_id":"miniature-non-contact-liquid-level-sensor-for-arduino-ip67-ultra-thin","title":"Miniature Non-contact Liquid Level Sensor for Arduino (IP67, Ultra-thin)","description":"\u003ch2\u003eIntroduction\u003c\/h2\u003e\n\u003cp\u003eThis miniature non-contact liquid level sensor utilizes capacitive sensing to detect the presence and level of liquids through non-metallic container walls. Without requiring direct liquid contact, this sensor eliminates risks of corrosion, contamination, and media adhesion, making it an ideal solution for monitoring aggressive substances such as strong acids, alkalis, and toxic liquids in sealed environments.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38022-content1.webp?v=1791345120\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eOne-Touch Smart Calibration\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eA simple press of the sensitivity button initiates automatic calibration within 3–5 seconds, allowing this sensor to intelligently lock the optimal sensitivity setting for the current container material and wall thickness. This one-touch feature enables rapid adaptation to containers of up to 15mm thickness without manual tuning.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38022-content2.webp?v=1791345133\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eAdvanced Capacitive Sensing Technology\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eAt the core of this sensor is a precision capacitive detection system. When liquid rises and approaches the sensing surface, the coupling of the liquid’s parasitic capacitance with the sensor’s static capacitance causes a measurable change. A built‑in high‑accuracy control IC converts this minute variation into a differential signal and analyzes it with a proprietary algorithm, triggering an output once the liquid level reaches the set threshold.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eUltra‑Compact \u0026amp; Rugged Design\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eMeasuring just 6.1mm in thickness, this miniature liquid level sensor can be easily embedded into tight spaces. Its enclosure is molded from PC‑V0 flame‑retardant material and carries an IP67 protection rating, ensuring reliable performance in harsh industrial and outdoor environments.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eBroad Controller Compatibility\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThis liquid level sensor can be directly interfaced with popular main controllers such as Arduino, making integration into prototyping and embedded systems straightforward.\u003c\/p\u003e\n\u003cp\u003eFrom household appliances and medical equipment to industrial liquid monitoring and chemical processing, this sensor provides a safe, non‑contact method to detect liquid levels. This sensor's robust design and smart calibration make it a reliable choice for a wide range of liquid‑sensing applications.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eOne-touch automatic sensitivity calibration for quick adaptation to different containers\u003c\/li\u003e\n\u003cli\u003eNon‑contact detection keeps the sensor safe from strong acids and alkalis\u003c\/li\u003e\n\u003cli\u003ePenetrates non‑metallic containers (plastic, glass, ceramic) with sensing thickness up to 15mm\u003c\/li\u003e\n\u003cli\u003eUltra‑compact size for easy embedding; IP67 waterproof rating\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eHousehold appliances: Water shortage protection and water level control for water dispensers, water purifiers, coffee machines\u003c\/li\u003e\n\u003cli\u003eMedical equipment: Liquid monitoring for medical solutions and liquid level management for medical cleaning equipment\u003c\/li\u003e\n\u003cli\u003eIndustrial control: Liquid level detection in strong acid and strong alkali storage tanks, and monitoring of toxic liquids in sealed containers\u003c\/li\u003e\n\u003cli\u003eChemical industry: Liquid detection in high-pressure sealed containers\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38022-content3.webp?v=1791345160\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch2\u003eSpecification\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eOperating Voltage: 3.3V~5V DC\u003c\/li\u003e\n\u003cli\u003eSensing Thickness Range: ≤15mm\u003c\/li\u003e\n\u003cli\u003eLiquid Level Accuracy: ±3mm\u003c\/li\u003e\n\u003cli\u003eCurrent Consumption: 5mA±2mA\u003c\/li\u003e\n\u003cli\u003eOutput Type: High\/Low Level\u003c\/li\u003e\n\u003cli\u003eOutput Current: ≤100mA\u003c\/li\u003e\n\u003cli\u003eResponse Time: 500ms\u003c\/li\u003e\n\u003cli\u003eOperating Ambient Temperature: -20°C~65℃\u003c\/li\u003e\n\u003cli\u003eCable Length: 50cm\u003c\/li\u003e\n\u003cli\u003eMaterial: PC-V0 Flame-retardant material\u003c\/li\u003e\n\u003cli\u003eWaterproof Rating: IP67\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eShipping List\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eMiniature Non-contact Liquid Level Sensor x1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDocuments\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/wiki.dfrobot.com\/sen0715\/\" target=\"_blank\"\u003eProduct Wiki\u003c\/a\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFRobot","offers":[{"title":"Default Title","offer_id":67582033133645,"sku":"E38022-001","price":14.57,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38022-win1.jpg?v=1791345204"},{"product_id":"industrial-intelligent-non-contact-liquid-level-sensor-ip67","title":"Industrial Intelligent Non-contact Liquid Level Sensor (IP67)","description":"\u003ch2\u003eIntroduction\u003c\/h2\u003e\n\u003cp\u003eThis intelligent non-contact liquid level sensor uses capacitive sensing to detect liquid presence through container walls, eliminating direct contact with corrosive, viscous, or contaminated liquids. The sensor compensates for residual films, moisture, or foam in liquids such as milk, honey, latex, blood, engine oil, and acid\/alkaline solutions, delivering reliable level detection. A built‑in LED indicator shows real‑time status, and the IP67‑rated PC‑V0 housing ensures stable operation in harsh industrial or outdoor environments. This sensor works seamlessly with Arduino and other 5V logic microcontrollers.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38023-content1.webp?v=1791345368\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eOne‑Touch Automatic Sensitivity Calibration\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThe sensor features an intelligent sensitivity memory function with external push‑button control. Simply ensure liquid is present at the sensing position and single‑click the button. Within 3‑5 seconds, the sensor automatically locks onto the optimal sensitivity for the current container wall thickness and material. This eliminates manual tuning and adapts to plastic, glass, or ceramic containers up to 10mm thick.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eNon‑Contact Detection for Demanding Liquids\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eBecause the sensor mounts on the outer container wall, it never touches the measured liquid. This avoids corrosion from strong acids or alkalis, prevents contamination in medical or food applications, and eliminates fouling from sticky substances like honey, latex, or engine oil. The non‑contact design also simplifies cleaning and maintenance in hygienic environments.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003ePenetrates Non‑Metallic Containers with High Sensitivity\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThe advanced capacitive sensing technology works through plastic, glass, and ceramic walls with a sensing distance (wall thickness) up to 10mm. It detects low‑conductivity liquids (≤50ms) and compensates for residual moisture or foam that would confuse ordinary sensors. The built‑in high‑precision IC converts minute capacitance changes into a reliable high\/low level signal.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eIndustrial‑Grade Robustness\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThe housing is molded from PC‑V0 fire‑retardant material, and the IP67 waterproof rating protects against dust and temporary immersion. An onboard LED indicator provides instant visual confirmation of liquid presence. With an operating temperature range of ‑25°C to +85°C and temperature drift below 20%, this sensor performs reliably in refrigeration, outdoor tanks, and industrial machinery.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38023-content2.webp?v=1791345386\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003eFrom water shortage protection in household dispensers and coffee machines to liquid level monitoring in medical equipment and strong acid\/alkali storage tanks, this non‑contact sensor delivers corrosion‑free, maintenance‑reduced level detection. It also suits sealed chemical containers and toxic liquid monitoring where any leak would be hazardous.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eOne‑touch automatic sensitivity calibration with memory function\u003c\/li\u003e\n\u003cli\u003eNon‑contact detection – mounts outside the container, no liquid contact\u003c\/li\u003e\n\u003cli\u003eWorks through plastic, glass, and ceramic walls up to 10mm thick\u003c\/li\u003e\n\u003cli\u003eDetects viscous liquids (milk, honey, latex, blood, oil, acids\/alkalis) with residual film or foam\u003c\/li\u003e\n\u003cli\u003eBuilt‑in LED indicator for real‑time level status\u003c\/li\u003e\n\u003cli\u003eIP67 waterproof and PC‑V0 fire‑retardant housing\u003c\/li\u003e\n\u003cli\u003eHigh\/low level digital output, compatible with 5V systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eHousehold appliances: Water shortage protection and water level control for water dispensers, water purifiers, coffee machines\u003c\/li\u003e\n\u003cli\u003eMedical equipment: Liquid monitoring for medical solutions and liquid level management for medical cleaning equipment\u003c\/li\u003e\n\u003cli\u003eIndustrial control: Liquid level detection in strong acid and strong alkali storage tanks, monitoring of toxic liquids in sealed containers\u003c\/li\u003e\n\u003cli\u003eChemical industry: Liquid detection in high-pressure sealed containers\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38023-content3.webp?v=1791345400\" alt=\"\"\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecification\u003c\/h2\u003e\n\u003cp\u003eElectrical Characteristics\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOperating Voltage: 5V DC\u003c\/li\u003e\n\u003cli\u003eCurrent Consumption: ≤10mA±2mA\u003c\/li\u003e\n\u003cli\u003eOutput Type: High\/Low Level\u003c\/li\u003e\n\u003cli\u003eOutput Current: ≤100mA\u003c\/li\u003e\n\u003cli\u003ePower-on Delay: ≤500ms\u003c\/li\u003e\n\u003cli\u003eResponse Time: ≤100ms\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eDetection Performance\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSensing Thickness Range: ≤10mm\u003c\/li\u003e\n\u003cli\u003eLiquid Level Accuracy: ±3mm\u003c\/li\u003e\n\u003cli\u003eDetectable Liquid Conductivity: ≤50ms\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eEnvironmental \u0026amp; Physical\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOperating Ambient Temperature: -25°C~85℃\u003c\/li\u003e\n\u003cli\u003eOperating Ambient Humidity: 30%~80% non-condensing\u003c\/li\u003e\n\u003cli\u003eTemperature Drift: ≤20% (-25℃~+60℃)\u003c\/li\u003e\n\u003cli\u003eCable Length: 50cm\u003c\/li\u003e\n\u003cli\u003eHousing Material: PC-V0 fire-retardant material\u003c\/li\u003e\n\u003cli\u003eWaterproof Rating: IP67\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eShipping List\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eIntelligent Non-contact Liquid Level Sensor x1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDocuments\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/wiki.dfrobot.com\/sen0716\/\" target=\"_blank\"\u003eProduct Wiki\u003c\/a\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFRobot","offers":[{"title":"Default Title","offer_id":67582042341453,"sku":"E38023-001","price":38.97,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38023-win1.jpg?v=1791345435"},{"product_id":"gravity-non-contact-capacitive-flexible-liquid-level-sensor","title":"Gravity: Non-contact Capacitive Flexible Liquid Level Sensor","description":"\u003ch2\u003eIntroduction\u003c\/h2\u003e\n\u003cp\u003eThis non-contact capacitive liquid level sensor uses flexible substrate with light and thin design. With temperature-resistant and waterproof 3M adhesive tape on the back, it can be easily attached on surfaces of any kind of non-conductive container whose thickness is less than 5mm.\u003c\/p\u003e\n\u003cp\u003eThe sensor outputs digital high\/low level (low when liquid detected) and adopts 3-pin DuPont connector, which \u003cb\u003ecan be widely used in water tank detection, beverage machine, water pipe level detection, scientific experiment test tube level detection and other scenarios. \u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003e\u003cimg\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38024-content1.webp?v=1791345584\" alt=\"\"\u003e\u003c\/b\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eWorking Principle \u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThe intelligent liquid level sensor uses the sensing capacitance of water to detect the presence of liquid. When there is no liquid approaching the sensor, the sensor has a certain static capacitance due to the distributed capacitance. When the liquid level slowly rises close to the inductor, the parasitic capacitance of the liquid will be coupled to the static capacitor, causing the final capacitance of the inductor to become larger. The changed capacitance signal is then input to the control IC for signal conversion, which will change. The capacitance is converted into the amount of change of an electrical signal, and then a certain algorithm detects and judges the degree of the change. When the amount of change exceeds a certain threshold, the liquid level is considered to reach the sensing point.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38024-content2.webp?v=1791345616\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eDimension \u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38024-content3.webp?v=1791345628\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eConnection Diagram\u003c\/b\u003e\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eWith light and thin design\u003c\/li\u003e\n\u003cli\u003eCan be attached on surfaces of non-conductive container\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eWater Tank Detection\u003c\/li\u003e\n\u003cli\u003eBeverage Machine\u003c\/li\u003e\n\u003cli\u003eWater Pipe Level Detection\u003c\/li\u003e\n\u003cli\u003eScientific Experiment Test Tube Level Detection\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecification\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eWorking Voltage: 2.5~5.5VDC\u003c\/li\u003e\n\u003cli\u003eWorking Current: 5V290uA 3V235uA\u003c\/li\u003e\n\u003cli\u003eOutput: low (liquid detected), high level(no liquid detected)\u003c\/li\u003e\n\u003cli\u003eThickness Range(TR): 5mm\u003c\/li\u003e\n\u003cli\u003eHysteresis: ±0.25%FS\u003c\/li\u003e\n\u003cli\u003eProtection Level: IP62\u003c\/li\u003e\n\u003cli\u003eWorking Temperature: -30~85℃\u003c\/li\u003e\n\u003cli\u003eWeight: 2g\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eShipping List\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eGravity: Non-contact Capacitive Flexible Liquid Level Sensor x1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDocuments\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/wiki.dfrobot.com\/sen0508\/\" target=\"_blank\"\u003eProduct Wiki\u003c\/a\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFRobot","offers":[{"title":"Default Title","offer_id":67582044078157,"sku":"E38024-001","price":13.51,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38024-win1.jpg?v=1791345665"},{"product_id":"gravity-liquid-flow-sensor-g3-4","title":"Gravity: Liquid Flow Sensor (G3\/4)","description":"\u003ch2\u003eIntroduction\u003c\/h2\u003e\n\u003cp\u003eThis Gravity: liquid flow sensor is designed based on the electromagnetic principle. It adopts O-ring rubber seal and uses silicone sealant at the outlet end to strength water-resistance. With high anti-interference and anti-impact, the sensor offers reliable performance and long service life. Also, it is designed with G3\/4 thread connectors for easy installation.\u003c\/p\u003e\n\u003cp\u003eThe sensor can be used with microcontrollers like Arduino UNO to measure the flow of liquids with high concentration and low viscosity like water, diesel, engine oil, milk, paint, detergent, honey, etc. (no impurity in liquid)\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38025-content1.webp?v=1791345806\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eGravity interface, easy to wire\u003c\/li\u003e\n\u003cli\u003eWide voltage of 3.5~24V\u003c\/li\u003e\n\u003cli\u003eMeasure the flow of the high-concentration but low-viscosity liquid\u003c\/li\u003e\n\u003cli\u003eRoHS compliant\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eMeasure the flow of liquids with high concentration and low viscosity\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecification\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eOperating Voltage: DC3.5~24V\u003c\/li\u003e\n\u003cli\u003eOperating Current: ≤10mA (DC5V)\u003c\/li\u003e\n\u003cli\u003eOutput Mode: NPN pulse signal\u003c\/li\u003e\n\u003cli\u003ePipe Diameter: G3\/4\u003c\/li\u003e\n\u003cli\u003eThread I.D.: 16mm\u003c\/li\u003e\n\u003cli\u003eThread O.D.: 26mm\u003c\/li\u003e\n\u003cli\u003eThread Length: 18.7mm\u003c\/li\u003e\n\u003cli\u003eWater Pressure Resistance: ≤1.2MPA\u003c\/li\u003e\n\u003cli\u003eInsulation Resistance: \u0026gt;100MΩ\u003c\/li\u003e\n\u003cli\u003eFlow Range: 30-3000L\/H\u003c\/li\u003e\n\u003cli\u003eError: ±1% (20-3000L\/H)\u003c\/li\u003e\n\u003cli\u003eOutput Pulse High Level: \u0026gt;DC4.7V (input voltage DC5V)\u003c\/li\u003e\n\u003cli\u003eOutput Pulse Low Level: ＜DC0.5V (input voltage DC5V)\u003c\/li\u003e\n\u003cli\u003eOutput Pulse Duty Ratio: 50%±10%\u003c\/li\u003e\n\u003cli\u003eFlow \u0026amp; Pulse Correlation: 1L=75 pulses\u003c\/li\u003e\n\u003cli\u003eOperating Temperature: ≤80°C\u003c\/li\u003e\n\u003cli\u003eOperating Humidity: 35%~90%RH (No condensing)\u003c\/li\u003e\n\u003cli\u003eStorage Temperature: -25°~+80°C\u003c\/li\u003e\n\u003cli\u003eStorage Humidity: 25%~95%RH\u003c\/li\u003e\n\u003cli\u003eDimensions: 92*47*39mm\/3.62*1.85*1.54\"\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eShipping List\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eGravity: Liquid Flow Sensor (G3\/4) × 1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDocuments\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/wiki.dfrobot.com\/sen0551\/\" target=\"_blank\"\u003eProduct Wiki\u003c\/a\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFRobot","offers":[{"title":"Default Title","offer_id":67582047715405,"sku":"E38025-001","price":32.93,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38025-win1.jpg?v=1791345845"},{"product_id":"gravity-liquid-flow-sensor-g1-2","title":"Gravity: Liquid Flow Sensor (G1\/2)","description":"\u003ch2\u003eIntroduction\u003c\/h2\u003e\n\u003cp\u003eThis Gravity: Liquid Flow Sensor is designed based on the electromagnetic principle. It adopts O-ring rubber seal and uses silicone sealant at the outlet end to ensure good waterproofness. Also, it embraces high anti-electromagnetic interference and anti-vibration capabilities, offering reliable performance and long service life.\u003c\/p\u003e\n\u003cp\u003eThe sensor can be used with microcontrollers like Arduino UNO to measure the flow of liquids with high concentration and low viscosity like water, diesel, engine oil, milk, paint, detergent, honey, etc. (no impurity in liquid)\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38026-content1.webp?v=1791345996\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eGravity interface, easy to wire\u003c\/li\u003e\n\u003cli\u003eWide voltage of 3.5~24V\u003c\/li\u003e\n\u003cli\u003eMeasure the flow of the high-concentration but low-viscosity liquid\u003c\/li\u003e\n\u003cli\u003eRoHS compliant\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eMeasure the flow of liquids with high concentration and low viscosity\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecification\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eOperating Voltage: DC3.5~24V\u003c\/li\u003e\n\u003cli\u003eOperating Current: ≤10mA (DC5V)\u003c\/li\u003e\n\u003cli\u003eOutput Mode: NPN pulse signal\u003c\/li\u003e\n\u003cli\u003ePipe Diameter: G1\/2\u003c\/li\u003e\n\u003cli\u003eThread I.D.: 10mm\u003c\/li\u003e\n\u003cli\u003eThread O.D.: 20.5mm\u003c\/li\u003e\n\u003cli\u003eThread Length: 29mm\u003c\/li\u003e\n\u003cli\u003eWater Pressure Resistance: ≤1.2MPA\u003c\/li\u003e\n\u003cli\u003eInsulation Resistance: \u0026gt;100MΩ\u003c\/li\u003e\n\u003cli\u003eFlow Range: 30-1200L\/H\u003c\/li\u003e\n\u003cli\u003eError: ±1% (5-600L\/H)\u003c\/li\u003e\n\u003cli\u003eOutput Pulse High Level: \u0026gt;DC4.7V (input voltage DC5V)\u003c\/li\u003e\n\u003cli\u003eOutput Pulse Low Level: ＜DC0.5V (input voltage DC5V)\u003c\/li\u003e\n\u003cli\u003eOutput Pulse Duty Ratio: 50%±10%\u003c\/li\u003e\n\u003cli\u003eFlow \u0026amp; Pulse Correlation: 1L=150 pulses\u003c\/li\u003e\n\u003cli\u003eOperating Temperature: ≤80°C\u003c\/li\u003e\n\u003cli\u003eOperating Humidity: 35%~90%RH (No condensing)\u003c\/li\u003e\n\u003cli\u003eStorage Temperature: -25°~+80°C\u003c\/li\u003e\n\u003cli\u003eStorage Humidity: 25%~95%RH\u003c\/li\u003e\n\u003cli\u003eDimensions: 80*47*37mm\/3.15*1.85*1.46\"\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eShipping List\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eGravity: Liquid Flow Sensor (G1\/2) × 1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDocuments\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/wiki.dfrobot.com\/sen0550\/\" target=\"_blank\"\u003eProduct Wiki\u003c\/a\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFRobot","offers":[{"title":"Default Title","offer_id":67582054989901,"sku":"E38026-001","price":32.93,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38026-win1.jpg?v=1791346039"},{"product_id":"gravity-liquid-flow-sensor-g1-4-npn-pulse-output","title":"Gravity: Liquid Flow Sensor (G1\/4, NPN Pulse Output)","description":"\u003ch2\u003eIntroduction\u003c\/h2\u003e\n\u003cp\u003eGravity: Liquid Flow Sensor (G1\/4) is an electromagnetic‑principle flow measurement module designed for reliable liquid monitoring in compact fluid systems. This gravity‑series flow detection sensor integrates a sealed flow chamber, pulse output electronics, and standard threaded connectors to deliver stable readings across a wide operating voltage range. An internal sensing structure generates pulse signals proportional to the liquid passing through the channel, enabling straightforward integration with development platforms such as Arduino UNO. The compact inline meter supports measurement of high‑concentration, low‑viscosity liquids including water, diesel, engine oil, milk, paint, detergent, and honey in clean fluid environments.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38027-content1.webp?v=1791346452\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eElectromagnetic Flow Measurement with Pulse Output\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThis liquid flow monitoring module adopts an electromagnetic sensing mechanism that converts flow movement into stable NPN pulse signals. Each liter of liquid corresponds to a defined pulse count, allowing microcontrollers and embedded platforms to calculate flow rate and total volume through simple digital counting. Such architecture makes the gravity‑series sensor suitable for automated fluid monitoring systems, laboratory dispensing setups, and embedded IoT measurement devices where reliable pulse feedback simplifies firmware design and improves measurement consistency.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eEnhanced Sealing for Reliable Liquid Operation\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eAn internal O‑ring rubber seal combined with silicone sealing at the outlet interface improves water resistance and long‑term durability. This structural sealing design helps protect internal sensing components from leakage and external moisture, supporting stable operation under continuous fluid flow conditions. High anti‑interference capability and impact resistance further enhance operational reliability, making the compact inline flow meter suitable for demanding environments such as industrial monitoring setups, experimental liquid systems, and automated fluid management equipment.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eThreaded G1\/4 Interface for Easy System Integration\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eA standard G1\/4 threaded inlet and outlet simplifies mechanical installation in tubing systems and fluid pipelines. The threaded design allows fast integration with common adapters, valves, and connectors used in laboratory or industrial liquid systems. Combined with a Gravity connector interface for electronics wiring, the compact flow sensing board reduces setup complexity during prototyping and embedded development. Broad operating voltage support from 3.5V to 24V also enables compatibility with a wide range of microcontroller platforms and control systems.\u003c\/p\u003e\n\u003cp\u003eThis compact gravity‑series liquid flow detection sensor fits fluid monitoring tasks such as dosing systems, experimental liquid measurement setups, automated equipment, and embedded monitoring projects. Reliable pulse output combined with a durable sealed structure enables stable measurement of low‑viscosity liquids across a variety of robotics, industrial automation, and STEM Education fluid‑control applications.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eGravity connector design for simple and reliable wiring\u003c\/li\u003e\n\u003cli\u003eWide operating voltage range of 3.5–24V\u003c\/li\u003e\n\u003cli\u003eSupports measurement of high‑concentration, low‑viscosity liquids\u003c\/li\u003e\n\u003cli\u003eRoHS compliant\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eLiquid flow monitoring for low‑viscosity fluids\u003c\/li\u003e\n\u003cli\u003eLaboratory liquid measurement and dispensing systems\u003c\/li\u003e\n\u003cli\u003eAutomated fluid control and monitoring equipment\u003c\/li\u003e\n\u003cli\u003eEmbedded and STEM Education fluid measurement projects\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecification\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eOperating Voltage: DC3.5-24V\u003c\/li\u003e\n\u003cli\u003eOperating Current: ≤10mA（DC5V）\u003c\/li\u003e\n\u003cli\u003eOutput: NPN Pulse signal\u003c\/li\u003e\n\u003cli\u003ePipe Diameter: G1\/4\u003c\/li\u003e\n\u003cli\u003eThread Outer Diameter: 13mm\u003c\/li\u003e\n\u003cli\u003eThread Length: 10mm\u003c\/li\u003e\n\u003cli\u003eWater Pressure Resistance: ≤1.0MPA\u003c\/li\u003e\n\u003cli\u003eInsulation Resistance: ＞100MΩ\u003c\/li\u003e\n\u003cli\u003eError: ±1%(0.3-5L\/min)\u003c\/li\u003e\n\u003cli\u003eOutput Pulse High Level: ＞DC4.7V(Input voltage DC5V)\u003c\/li\u003e\n\u003cli\u003eOutput Pulse Low Level: ＜DC0.5V(Input voltage DC5V)\u003c\/li\u003e\n\u003cli\u003eOutput Pulse Duty Ratio: 50%±10%\u003c\/li\u003e\n\u003cli\u003eFlow-Pulse Correlation: 1L=540 pulses\u003c\/li\u003e\n\u003cli\u003eOperating Temperature Range: -10°~70°C\u003c\/li\u003e\n\u003cli\u003eOperating Humidity Range: 35%~90%RH(No condensing)\u003c\/li\u003e\n\u003cli\u003eStorage Temperature: -25°~+80°C\u003c\/li\u003e\n\u003cli\u003eStorage Humidity: 25%~95%RH\u003c\/li\u003e\n\u003cli\u003eDimension: 80*47*30mm\/3.15*1.85*1.18”\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eShipping List\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eGravity: Liquid Flow Sensor (G1\/4) x1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDocuments\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/wiki.dfrobot.com\/sen0549\/\" target=\"_blank\"\u003eProduct Wiki\u003c\/a\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFRobot","offers":[{"title":"Default Title","offer_id":67582102011981,"sku":"E38027-001","price":32.93,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38027-win1.jpg?v=1791346502"},{"product_id":"gravity-water-flow-sensor-1-2-for-arduino","title":"Gravity: Water Flow Sensor (1\/2\") For Arduino","description":"\u003ch2\u003eIntroduction\u003c\/h2\u003e\n\u003cp\u003eThe Gravity Water Flow sensor measures the rate of a liquid flowing through it.\u003c\/p\u003e\n\u003cp\u003eThe YF-S201 water flow sensor consists of a plastic valve body, flow rotor and hall effect sensor. It is usually used at the inlet end to detect the amount of flow.\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhen liquid flows through the sensor, a magnetic rotor will rotate and the rate of rotation will vary with the rate of flow. The hall effect sensor will then output a pulse width signal. Connect it to a microcontroller and you can monitor multiple devices such as your coffee maker, sprinkler or anything else, and control the water flow rate to suit your needs! \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003eGravity interface make it be compatible with Arduino IO Expansion Shield.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38028-content1.webp?v=1791346754\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003eNote:\u003cbr\u003e*A 20 mm rifled pipe is recommended\u003cbr\u003e*Avoid unit contact with corrosive chemicals\u003cbr\u003e*The unit must be installed vertically, tilted no more than 5 degrees\u003cbr\u003e*Liquid temperature should be less than 120 C to avoid damage to unit\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003eSpecification\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eInner Diameter: 11 mm\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 20 mm\u003c\/li\u003e\n\u003cli\u003eProof Water Pressure: \u0026lt;1.75 MPa\u003c\/li\u003e\n\u003cli\u003eWater Flow Range: 1-30 L\/min\u003c\/li\u003e\n\u003cli\u003eVoltage Range: 3.5~12 V\u003c\/li\u003e\n\u003cli\u003eOperating Current: 15 mA (DC 5V)\u003c\/li\u003e\n\u003cli\u003eInsulation Resistance: \u0026gt;100 MΩ\u003c\/li\u003e\n\u003cli\u003eAccuracy: ±5% (2~30L\/min)\u003c\/li\u003e\n\u003cli\u003eThe Output Pulse High Level: \u0026gt;4.7 VDC (DC input voltage 5 V)\u003c\/li\u003e\n\u003cli\u003eThe Output Pulse Low Level: \u0026lt;0.5 VDC (DC input voltage 5 V)\u003c\/li\u003e\n\u003cli\u003eOutput Pulse Duty Ratio: 50% ± 10%\u003c\/li\u003e\n\u003cli\u003eWater-flow Formula: 1L = 450 square waves\u003c\/li\u003e\n\u003cli\u003eWorking Humidity Range: 25% ~ 95% RH (no frost)\u003c\/li\u003e\n\u003cli\u003eDimension: 62*36*35 mm\/2.44*1.37*1.37 inches\u003c\/li\u003e\n\u003cli\u003eWeight: 52g\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eShipping List\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eGravity - Water Flow Sensor - 1\/2\" x1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDocuments\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/wiki.dfrobot.com\/sen0217\/\" target=\"_blank\"\u003eProduct Wiki\u003c\/a\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFRobot","offers":[{"title":"Default Title","offer_id":67582139760717,"sku":"E38028-001","price":23.87,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38028-win1.jpg?v=1791346788"},{"product_id":"gravity-digital-water-flow-sensor-for-arduino-1-8","title":"Gravity: Digital Water Flow Sensor For Arduino - 1\/8\"","description":"\u003ch2\u003eIntroduction\u003c\/h2\u003e\n\u003cp\u003eThe Water Flow sensor measures the rate of a liquid flowing through it. The YF-S401 water flow sensor consists of a plastic valve body, flow rotor and hall effect sensor. It is usually used at the inlet end to detect the amount of flow. When liquid flows through the sensor, a magnetic rotor will rotate and the rate of rotation will vary with the rate of flow. The hall effect sensor will then output a pulse width signal. Connect it to a microcontroller and you can monitor multiple devices such as your coffee maker, sprinkler or anything else, and control the water flow rate to suit your needs!\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38029-content1.webp?v=1791346958\" alt=\"\"\u003e\u003cbr\u003eNote:\u003cbr\u003e*A 6 mm hose is recommended\u003cbr\u003e*Avoid unit contact with corrosive chemicals\u003cbr\u003e*The unit must be installed vertically, tilted no more than 5 degrees\u003cbr\u003e*Liquid temperature should be less than 120 C to avoid damage to unit\u003c\/p\u003e\n\u003ch2\u003eSpecification\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eInner Diameter: 4 mm\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 7 mm\u003c\/li\u003e\n\u003cli\u003eProof Water Pressure: \u0026lt;0.8 MPa\u003c\/li\u003e\n\u003cli\u003eWater Flow Range: 0.3-6 L\/min\u003c\/li\u003e\n\u003cli\u003eVoltage Range: 5~12 V\u003c\/li\u003e\n\u003cli\u003eOperating Current: 15 mA (DC 5V)\u003c\/li\u003e\n\u003cli\u003eInsulation Resistance: \u0026gt;100 MΩ\u003c\/li\u003e\n\u003cli\u003eAccuracy: ±5% (0.3-3L\/min)\u003c\/li\u003e\n\u003cli\u003eThe Output Pulse High Level: \u0026gt;4.5 VDC (DC input voltage 5 V)\u003c\/li\u003e\n\u003cli\u003eThe Output Pulse Low Level: \u0026lt;0.5 VDC (DC input voltage 5 V)\u003c\/li\u003e\n\u003cli\u003eOutput Pulse Duty Ratio: 50% ± 10%\u003c\/li\u003e\n\u003cli\u003eWater-flow Formula: 1L = 5880 square waves\u003c\/li\u003e\n\u003cli\u003eWorking Humidity Range: 35% ~ 90% RH (no frost)\u003c\/li\u003e\n\u003cli\u003eDimension: 58*35*26 mm\/2.28*1.37*1.02 inches\u003c\/li\u003e\n\u003cli\u003eWeight: 30g\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eShipping List\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eGravity - Water Flow Sensor - 1\/8\" x1\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDocuments\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/wiki.dfrobot.com\/sen0216\/\" target=\"_blank\"\u003eProduct Wiki\u003c\/a\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFRobot","offers":[{"title":"Default Title","offer_id":67582150574157,"sku":"E38029-001","price":23.87,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38029-win1.jpg?v=1791346995"},{"product_id":"non-contact-capacitive-liquid-level-sensor-for-tube-od-10mm","title":"Non-contact Capacitive Liquid Level Sensor for Tube OD≤10mm","description":"\u003ch2\u003eIntroduction\u003c\/h2\u003e\n\u003cp\u003eThis is a non-contact liquid level sensor with a status indicator and adjustable sensitivity. It is especially suitable for detecting the liquid level of all sorts of non-metal tubes(outer diameter D≤10MM). The status feedback of the sensor can be given in real-time. Besides that, the sensor comes with a 4pin sensor adaptor that can directly collect digital signal, convenient for connecting with Arduino or other main-controllers.\u003c\/p\u003e\n\u003cp\u003eThis liquid level sensor can be widely used in liquid detection of water dispenser, small pipes, and perfusion tubes.\u003c\/p\u003e\n\u003cp\u003e\u003cimg\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38030-content1.webp?v=1791347145\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003eThis non-contact liquid level sensor is developed on advanced signal process technology by high-speed signal processing chip. It can measure the liquid level of a closed container and it will not be affected by corrosive liquids like strong acid and alkali, or other impurities.\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eWorking Principle\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eA Non-contact liquid level sensor is used for detecting whether there is liquid by water induction capacitor. When there is no liquid approaching the sensor, there will be some certain static capacitance to ground on the sensor due to the presence of distributed capacitance. When the liquid level rises slowly to approach the sensor, the liquid parasitic capacitor will be coupled to the static capacitance so that the final capacitance value will increase. The changed capacitance signal will be input to the control IC for signal conversion, by which to transform the changed capacitance value into the variation of the certain electric signal. Then the degree of the variation can be detected and determined through specific algorithms. When the variation exceeds a threshold value, it means the liquid level reaches the sensing point.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38030-content2.webp?v=1791347177\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eHigh stability and sensitivity\u003c\/li\u003e\n\u003cli\u003eAdjustable sensitivity\u003c\/li\u003e\n\u003cli\u003eWith status indicator\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecification\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePower Supply: \u003cb\u003e5~24V \u003c\/b\u003e\n\u003c\/li\u003e\n\u003cli\u003eOutput: switch quantity\u003c\/li\u003e\n\u003cli\u003eResponse Time: 500ms\u003c\/li\u003e\n\u003cli\u003eOperating Temperature: -5~105°C\u003c\/li\u003e\n\u003cli\u003eSuitable Pipe Diameter: \u003cb\u003e≤10mm \u003c\/b\u003e\n\u003c\/li\u003e\n\u003cli\u003eLiquid Level Error: ±1.5mm\u003c\/li\u003e\n\u003cli\u003eMaterial: ABS\u003c\/li\u003e\n\u003cli\u003eWaterproof Performance: \u003cb\u003eIP65 \u003c\/b\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eShipping List\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eNon-contact Capacitive Liquid Level Sensor for Tube OD≤10mm x1\u003c\/li\u003e\n\u003cli\u003eGravity: 4Pin Sensor Adapter x1\u003c\/li\u003e\n\u003cli\u003eScrewdriver x1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDocuments\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/wiki.dfrobot.com\/sen0370\/\" target=\"_blank\"\u003eProduct Wiki\u003c\/a\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFRobot","offers":[{"title":"Default Title","offer_id":67582151917645,"sku":"E38030-001","price":22.66,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38030-win1.jpg?v=1791347223"},{"product_id":"water-leak-detector","title":"Water Leak Detector","description":"\u003ch2\u003eIntroduction\u003c\/h2\u003e\n\u003cp\u003eWater leakage may cause some safety risks and monetary loss. Is there any device that can tell us whether there is water leakage in time so that we can take measures to minimize and avoid damage? Yes, there is. This water leak sensor, based on the integrated design of NO\/NC, aims to detect water leakage as well as water shortage. The sensor uses relay output signal, when it is normally open and water touches the two probes, the built-in relay will be triggered; when it is normally closed and the water level is lower than two probes, the built-in relay will be triggered; Then, the alarm system will be turned on or the equipment in house will be switched off.\u003c\/p\u003e\n\u003cp\u003eThe potential energy of the control circuit in this water leak detector is very low and will not cause combustible materials to catch fire, which ensures safe use. This sensor features high sensitivity, low false alarm rate, and waterproof and dustproof IP66 protection grade, which can be widely used in kitchens, hotels, base stations and factory warehouses.\u003c\/p\u003e\n\u003ch2\u003eSpecification\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eProcess Medium: water\u003c\/li\u003e\n\u003cli\u003eOutput Signal: switch quantity output\u003c\/li\u003e\n\u003cli\u003eOperating Current: ＜30mA\u003c\/li\u003e\n\u003cli\u003eOperating Voltage: 7-18V\u003c\/li\u003e\n\u003cli\u003eResponse Time:＜50ms\u003c\/li\u003e\n\u003cli\u003eOperating Temperature: -10℃-60℃\u003c\/li\u003e\n\u003cli\u003eProtection Level: IP66\u003c\/li\u003e\n\u003cli\u003eSize: 47mm\/1.85” in diameter, 30mm\/1.18” in height\u003c\/li\u003e\n\u003cli\u003eWiring: \u003c\/li\u003e\n\u003cli\u003eRed wire-power supply +\u003c\/li\u003e\n\u003cli\u003eBlack wire- power supply -\u003c\/li\u003e\n\u003cli\u003eBlue wire- common\u003c\/li\u003e\n\u003cli\u003eGreen wire- normally open\u003c\/li\u003e\n\u003cli\u003eYellow wire- normally closed\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eShipping List\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eWater Leak Detector x1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cfooter\u003e\u003c\/footer\u003e","brand":"DFRobot","offers":[{"title":"Default Title","offer_id":67582154244173,"sku":"E38031-001","price":29.91,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38031-win1.jpg?v=1791347467"},{"product_id":"ultrasonic-liquid-level-monitoring-sensor-3m-ip67","title":"Ultrasonic Liquid Level Monitoring Sensor (3m, IP67)","description":"\u003ch2\u003eIntroduction\u003c\/h2\u003e\n\u003cp\u003eThis ultrasonic liquid level monitoring sensor is designed for non-contact liquid level detection where traditional ultrasonic sensors may be limited by large blind zones, wide measurement angles, slow response, or difficult installation. With a blind zone of ≤1.5cm and an adjustable measuring range from 30~300cm, this liquid level sensor supports compact containers as well as larger tanks while providing configurable measurement behavior for different installation conditions.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38032-content1.webp?v=1791347667\" alt=\"\"\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003e1.5cm Blind Zone with Adjustable 30~300cm Measuring Range\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThis ultrasonic liquid level sensor reduces the blind zone to ≤1.5cm, allowing measurement to begin much closer to the sensing surface. The maximum measuring range can be configured to any value from 30~300cm through commands, with a factory default of 200cm. This adjustable range helps adapt the sensor to containers and tanks of different depths without relying on a fixed full-scale measurement distance.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eSix Algorithm Modes for Stable Liquid Surface Measurement\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThis liquid level sensor integrates six underlying algorithm modes for different liquid conditions, including real-time value output, three-stage liquid surface sloshing filtering, small step filtering, and high sensitivity operation. Algorithm modes 0, 4, and 5 output real-time values with a response time of 100ms, while modes 1, 2, and 3 output processed values with a response time of ≥2000ms for more stable readings. Algorithm mode 1 is enabled by default, and the operating mode can be configured through the Modbus protocol.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38032-content2.webp?v=1791347699\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eNine Configurable Signal Levels for Range and Viewing Angle\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThis ultrasonic level sensor provides nine configurable signal levels from 1 to 9, with level 5 selected by default. Higher signal levels increase sensing sensitivity, measurable range, and detection angle, allowing the measurement behavior to be adapted to different tank dimensions and installation geometries. At the default level 5 setting, the measurable range reaches up to 200cm.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38032-content3.webp?v=1791347718\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eFive Power Supply Noise Reduction Levels\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThis liquid level monitoring sensor supports five configurable power supply noise reduction levels, with level 1 selected by default. The noise reduction function helps maintain measurement stability in electrical environments such as direct battery power, long-cable USB power supplies, and high-noise switching power supplies. Higher noise reduction levels provide stronger suppression while also having a greater influence on the viewing angle.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38032-content4.webp?v=1791347736\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eIP67 Protection with 3.3~12V Wide Voltage Operation\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThis ultrasonic liquid level sensor combines an IP67 dustproof and waterproof enclosure with a wide 3.3~12V operating voltage range. Input and output interfaces integrate electrostatic discharge protection compliant with IEC61000-4-2 standards, with an electrostatic discharge protection rating of +4K\/8K (V). An operating temperature range from -25°C~65°C further supports liquid level monitoring across changing environmental conditions.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eBlind zone as low as 1.5cm with adjustable maximum measuring range from 30~300cm\u003c\/li\u003e\n\u003cli\u003eSix configurable liquid level algorithm modes including liquid surface sloshing filtering, small step filtering, and high sensitivity mode\u003c\/li\u003e\n\u003cli\u003eNine configurable signal levels for adapting measurement range, sensitivity, and detection angle\u003c\/li\u003e\n\u003cli\u003eFive configurable power supply noise reduction levels for different electrical environments\u003c\/li\u003e\n\u003cli\u003eReal-time value output with 100ms response time and processed value output with response time ≥2000ms\u003c\/li\u003e\n\u003cli\u003eIP67 waterproof and dustproof protection for liquid level monitoring environments\u003c\/li\u003e\n\u003cli\u003eWide 3.3~12V operating voltage range\u003c\/li\u003e\n\u003cli\u003eElectrostatic discharge protection compliant with IEC61000-4-2 standard\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eNutrient solution monitoring for hydroponics\u003c\/li\u003e\n\u003cli\u003eDisinfectant level monitoring in container\u003c\/li\u003e\n\u003cli\u003eNutrient solution monitoring for ornamental plant boxes\u003c\/li\u003e\n\u003cli\u003eWater level monitoring for RV water tanks and wastewater tanks\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecification\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eOperating Voltage: 3.3~12V\u003c\/li\u003e\n\u003cli\u003eStandby Current: ≤5uA\u003c\/li\u003e\n\u003cli\u003eAverage Operating Current: ≤9mA\u003c\/li\u003e\n\u003cli\u003eBlind Zone Distance: ≤1.5cm\u003c\/li\u003e\n\u003cli\u003eMeasuring Range: 30~300cm adjustable (default 200cm)\u003c\/li\u003e\n\u003cli\u003eAccuracy: 0.5+(S*0.3%)cm\u003c\/li\u003e\n\u003cli\u003eResponse Time: Real-time value 100ms, Processing value ≥2000ms\u003c\/li\u003e\n\u003cli\u003ePower-On Time: ≤650ms\u003c\/li\u003e\n\u003cli\u003eCycle Time: 100ms\u003c\/li\u003e\n\u003cli\u003eOutput Method: UART Auto (Modbus Protocol)\u003c\/li\u003e\n\u003cli\u003eTemperature Compensation: Yes\u003c\/li\u003e\n\u003cli\u003eAngle: 10~50°\u003c\/li\u003e\n\u003cli\u003eOperating Temperature: -25°C~65°C\u003c\/li\u003e\n\u003cli\u003eOperating Humidity: 65~80%RH\u003c\/li\u003e\n\u003cli\u003eStorage Temperature: -30°C~80°C\u003c\/li\u003e\n\u003cli\u003eStorage Humidity: 65~90%RH\u003c\/li\u003e\n\u003cli\u003eElectrostatic Discharge Protection Rating: +4K\/8K (V)\u003c\/li\u003e\n\u003cli\u003eProtection Rating: IP67\u003c\/li\u003e\n\u003cli\u003eShell Material: PC Material\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eShipping List\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eUltrasonic Liquid Level Monitoring Sensor-3m ×1\u003c\/li\u003e\n\u003cli\u003e4PIN adapter cable x1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDocuments\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/wiki.dfrobot.com\/sen0754\/\" target=\"_blank\"\u003eProduct Wiki\u003c\/a\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFRobot","offers":[{"title":"Default Title","offer_id":67582161354829,"sku":"E38032-001","price":60.12,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38032-win1.jpg?v=1791347779"},{"product_id":"capacitive-tube-liquid-level-sensor-od-6mm","title":"Capacitive Tube Liquid Level Sensor (OD=6mm)","description":"\u003ch2\u003eIntroduction\u003c\/h2\u003e\n\u003cp\u003eThis capacitive tube liquid level sensor of high sensitivity is suitable for non-metallic tubes with a diameter of 6mm. The sensor outputs digital high\/low level(low when liquid detected) and adopts 3-pin DuPont connector, \u003cb\u003ewhich can be widely used in beverage machines, small water tube level detection, and infusion pipe level detection scenarios.\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38033-content1.webp?v=1791348015\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38033-content2.webp?v=1791348035\" alt=\"\"\u003e\u003cimg\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eWorking Principle \u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThe liquid level sensor uses the sensing capacitance of water to detect the presence of liquid. When there is no liquid approaching the sensor, the sensor has a certain static capacitance due to the distributed capacitance. When the liquid level slowly rises close to the inductor, the parasitic capacitance of the liquid will be coupled to the static capacitor, causing the final capacitance of the inductor to become larger. The changed capacitance signal is then input to the control IC for signal conversion, which will change. The capacitance is converted into the amount of change of an electrical signal, and then a certain algorithm detects and judges the degree of the change. When the amount of change exceeds a certain threshold, the liquid level is considered to reach the sensing point.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eConnection Diagram\u003c\/b\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003e \u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38033-content3.webp?v=1791348057\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eHigh sensitivity\u003c\/li\u003e\n\u003cli\u003eAdopts 3-pin DuPont connector\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eBeverage machines\u003c\/li\u003e\n\u003cli\u003eSmall water pipe level detection\u003c\/li\u003e\n\u003cli\u003eInfusion pipe level detection scenarios\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecification\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eWorking Voltage: 2.5~5.5VDC\u003c\/li\u003e\n\u003cli\u003eWorking Current: 5V290uA 3V235uA\u003c\/li\u003e\n\u003cli\u003eOutput: low (liquid detected), high level(no liquid detected)\u003c\/li\u003e\n\u003cli\u003eHysteresis: ±0.25%FS\u003c\/li\u003e\n\u003cli\u003eInterval Medium: plastic\u003c\/li\u003e\n\u003cli\u003eProtection Level: IP62\u003c\/li\u003e\n\u003cli\u003eOperating Temperature: -20~100℃\u003c\/li\u003e\n\u003cli\u003eWeight: 3g\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eShipping List\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eCapacitive Tube Liquid Level Sensor (OD=6mm) x1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDocuments\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/wiki.dfrobot.com\/sen0509\/\" target=\"_blank\"\u003eProduct Wiki\u003c\/a\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFRobot","offers":[{"title":"Default Title","offer_id":67582199988301,"sku":"E38033-001","price":14.57,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38033-win1.jpg?v=1791348104"},{"product_id":"industrial-capacitive-liquid-level-sensor-for-high-viscosity-liquids","title":"Industrial Capacitive Liquid Level Sensor for High-Viscosity Liquids","description":"\u003ch2\u003eIntroduction\u003c\/h2\u003e\n\u003cp\u003eDifferent from our previous liquid level sensors, \u003cb\u003ethis capacitive liquid sensor can be used to detect high-viscosity and low-corrosive liquids, such as glue, lubricating oil, grease, ink, engine oil, powder and other special materials.\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38034-content1.webp?v=1791348308\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003eThe sensitivity of the sensor can be adjusted by the knob (clockwise to increase, counterclockwise to decrease) to adapt to more media. It has an indicator light to feedback the sensor status in real time, and comes with polarity protection and over-current protection mechanism.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38034-content2.webp?v=1791348332\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003eCapacitance contact detection: Determine whether there is liquid and distinguish between liquids by detecting the capacitance of the liquid.\u003c\/p\u003e\n\u003cp\u003eConical head of anti-hanging-liquid design: Reduces the phenomenon of hanging liquid in detecting.\u003c\/p\u003e\n\u003cp\u003eSpecial circuit design: Even if there are liquid residues, foam, scabs, etc. in the probe part, the appearance of false signals can be avoided by adjusting the sensitivity.\u003c\/p\u003e\n\u003cp\u003eStability design: With temperature compensation, the liquid level sensor can detect stably in the range of low temperature -25°C and high temperature 75°C. These detailed designs ensure the stability of detection performance to a large extent.\u003c\/p\u003e\n\u003cp\u003eMaterial: The head is made of PEEK material, the shell is made of 316 stainless steel, with general anti-corrosion performance, M12*1 standard thread, easy to install.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38034-content3.webp?v=1791348366\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38034-content4.webp?v=1791348366\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38034-content5.webp?v=1791348366\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003e\u003cspan style=\"color: #ff0000;\"\u003ePrecautions \u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThe liquid sensor should not be used in the following cases:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTemperature exceeds 75°C\u003c\/li\u003e\n\u003cli\u003ePressure higher than 0.3MP\u003c\/li\u003e\n\u003cli\u003eThere is dry glue on the probe that can't be removed\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eCan detect high viscosity and low corrosive liquids\u003c\/li\u003e\n\u003cli\u003eConical head of anti-hanging-liquid design\u003c\/li\u003e\n\u003cli\u003eNPN+PNP dual output\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDetect high viscosity and low corrosive liquids\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecification\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDetection Mode: Contact detection\u003c\/li\u003e\n\u003cli\u003eDetection Principle: Capacitive detection\u003c\/li\u003e\n\u003cli\u003ePower Supply Voltage: 12-24V\u003c\/li\u003e\n\u003cli\u003eDetection Object: \u003cb\u003eHigh viscosity and low corrosive liquid \u003c\/b\u003e\n\u003c\/li\u003e\n\u003cli\u003eSpeed: Response speed is 20ms, switch output frequency is 50Hz\u003c\/li\u003e\n\u003cli\u003eOutput Signal: \u003cb\u003eNPN+PNP Dual Output \u003c\/b\u003e\n\u003c\/li\u003e\n\u003cli\u003eOutput Current: Max100mA\u003c\/li\u003e\n\u003cli\u003eWorking Power: ＜0.5W\u003c\/li\u003e\n\u003cli\u003eWorking Temperature: -25°C~+80°C\u003c\/li\u003e\n\u003cli\u003eProtection Level: \u003cb\u003eIP65 \u003c\/b\u003e\n\u003c\/li\u003e\n\u003cli\u003eAppearance Material: PEEK\/316 stainless steel\u003c\/li\u003e\n\u003cli\u003eProtection Mechanism: Polarity protection, over-current protection\u003c\/li\u003e\n\u003cli\u003eWiring Instructions: Brown-positive, blue-negative, black-NPN, white-PNP\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eShipping List\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eIndustrial Capacitive Liquid Level Sensor for High-Viscosity Liquids x1\u003c\/li\u003e\n\u003cli\u003eScrewdriver x1\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFRobot","offers":[{"title":"Default Title","offer_id":67582209949773,"sku":"E38034-001","price":90.64,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38034-win1.jpg?v=1791348432"},{"product_id":"water-turbine-generator-5vdc","title":"Water Turbine Generator (5VDC)","description":"\u003ch2\u003eIntroduction\u003c\/h2\u003e\n\u003cp\u003eThis is a water turbine generator, 5V DC output, which can be directly used as Arduino power supply. Eco-friendly energy, you can make it work together with our lithium battery charger, working as a backup energy. This water turbine generator can be used in various hydro power generator application, such as smart faucets, sensing faucets, shower room lighting systems etc. The module comes with regulated power output, which provides standard 5V DC output. The maximum output current is up to 150Ma which is enough for most light application.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38035-content1.webp?v=1791348570\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch2\u003eSpecification\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eWorking Pressure: 0 ~ 1.0 Mpa\u003c\/li\u003e\n\u003cli\u003eTested Pressure: 0.6 MPa\u003c\/li\u003e\n\u003cli\u003eTemperature Range: 0 ~ 80 °C (maximum permissible ambient temperature 100 °C max: 30 min)\u003c\/li\u003e\n\u003cli\u003eStorage Temperature: -25 ~ 65 ° C\u003c\/li\u003e\n\u003cli\u003eFlow range: 2.5 ~ 20L \/ min (pressure 0.05-0.2mpa)\u003c\/li\u003e\n\u003cli\u003eOutput Voltage: DC 5V (water flow 4L \/ min)\u003c\/li\u003e\n\u003cli\u003eOutput Current: 0-150mA\u003c\/li\u003e\n\u003cli\u003eOutput Voltage Starting Flow: DC 2.5V water flow 3.5L \/ min\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eShipping List\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eWater Turbine Generator (5VDC) x1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cfooter\u003e\u003c\/footer\u003e","brand":"DFRobot","offers":[{"title":"Default Title","offer_id":67582213554253,"sku":"E38035-001","price":18.13,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38035-win1.jpg?v=1791348605"},{"product_id":"gravity-analog-spear-tip-ph-sensor-meter-kit","title":"Gravity: Analog Spear Tip pH Sensor \/ Meter Kit","description":"\u003ch2\u003eIntroduction\u003c\/h2\u003e\n\u003cp\u003eThis Gravity: Analog Spear Tip pH Sensor \/ Meter Kit can directly stab into semisolid material to measure the pH value. It can be used to measure the pH value of wet soil and various foods.\u003cbr\u003eThe pH value of the soil is an important factor affecting the growth of plants. Suitable pH values for different plants differ from each other. The pH value of foods, such as fruit, meat, and vegetable are also an important indicator of their quality. For example, by measuring the pH value of meat, we can determine whether the meat we bought is fresh or not.\u003cbr\u003eThe pH probe of this kit is attached with a spear-like protection shield made of stainless steel with a sharp tip. It can be directly stabbed into the soft semisolid material to measure the pH value, such as wet soil or foods. But this can not be done with a common pH probe, or it will be damaged.\u003cbr\u003eThis kit is Arduino compatible and easy to use. It helps you to quickly build a pH meter to measure the pH value of soil or foods directly.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38036-content1.webp?v=1791348804\" alt=\"\"\u003e\u003cbr\u003eArduino pH sensor connection\u003cbr\u003e\u003cspan style=\"color: #ffffff;\"\u003e\u003cstrong\u003e Attention:\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e*It is forbidden to measure hard solid samples and semisolid samples containing sharp particles.\u003cbr\u003e*Please keep the plug of the probe, signal transmitter board (especially the BNC connector) clean and dry.\u003cbr\u003e*This pH probe is a laboratory electrode, which is not suitable for prolonged online testing. Therefore, do not immerse the electrode in the measured object for a long time.\u003cbr\u003e*After using the pH probe, please clean it carefully.\u003cbr\u003e*The components of this probe which touch the measured objects have a black ABS shell, a glass component, and a silicone rubber material. Before testing the object, it is necessary to confirm that the measured objects are not harmful to these materials.\u003cbr\u003e*Not suitable for measurement: oily samples, samples with higher viscosity, samples with more fine particles.\u003cbr\u003e*Not suitable for non-aqueous titration.\u003cbr\u003e*The head of the stainless steel spear tip is sharp. Please pay attention to safety when using it.\u003cbr\u003e*The bottle cap of the probe contains protective liquid (3.3mol\/L KCL). Even if the bottle cap is screwed tightly, some protective liquid may still leak around the bottle cap, forming white crystals. But as long as there is still protective liquid in the bottle cap, it will not affect the life and accuracy of the probe. So please use it with confidence. It is recommended that the white crystals be poured back into the protective liquid in the bottle cap.\u003c\/p\u003e\n\u003cp\u003eFor more detailed insights on selecting the most suitable sensor, refer to the guide on [\u003cb\u003eHow to Select the Best Soil Moisture Sensors for Agriculture and Research Lab\u003c\/b\u003e].\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cp\u003eThis product uses the pH probe with a spear tip shell, which can directly stab into semisolid material to measure the pH value.\u003c\/p\u003e\n\u003ch2\u003eSpecification\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003e Spear Tip pH Probe\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMeasuring Range: 0~10pH\u003c\/li\u003e\n\u003cli\u003eAccuracy: ± 0.1pH\u003c\/li\u003e\n\u003cli\u003eOperating Temperature: 5~60 ℃\u003c\/li\u003e\n\u003cli\u003eResponse Time: ≤2min(in standard buffer solution)\u003c\/li\u003e\n\u003cli\u003eSalt Bridge Material: Poly Tetra Fluoro Ethylene (PTFE)\u003c\/li\u003e\n\u003cli\u003eShell Material: Polyoxymethylene (POM)\u003c\/li\u003e\n\u003cli\u003eFilling Solution: Can NOT be Filled\u003c\/li\u003e\n\u003cli\u003eWiring Connector: BNC\u003c\/li\u003e\n\u003cli\u003eWire Length: 850mm (BNC connector included)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e Signal Transmitter Board\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eInput Power : + 5.00V\u003c\/li\u003e\n\u003cli\u003eOutput Signal: 0 ~ 4.0V\u003c\/li\u003e\n\u003cli\u003eAccuracy : \u0026lt; ±0.2pH (25 ℃)\u003c\/li\u003e\n\u003cli\u003eProbe Connector: BNC\u003c\/li\u003e\n\u003cli\u003eModule Connector: Gravity: PH2.0-3Pin\u003c\/li\u003e\n\u003cli\u003eDimension: 43mm×32mm(1.69inch*1.26inch)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eShipping List\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSpear Tip pH Probe x1\u003c\/li\u003e\n\u003cli\u003eStainless Steel Spear Tip Shell x1\u003c\/li\u003e\n\u003cli\u003eSignal Transmitter Board x1\u003c\/li\u003e\n\u003cli\u003eGravity Analog Cable 3Pin x1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDocuments\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/wiki.dfrobot.com\/sen0249\/\" target=\"_blank\"\u003eProduct Wiki\u003c\/a\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFRobot","offers":[{"title":"Default Title","offer_id":67582216503373,"sku":"E38036-001","price":238.38,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38036-win1.jpg?v=1791348846"},{"product_id":"gravity-capacitive-non-contact-liquid-level-sensor3mm-tr-ip67","title":"Gravity: Capacitive Non-contact Liquid Level Sensor(3mm TR, IP67)","description":"\u003ch2\u003eIntroduction\u003c\/h2\u003e\n\u003cp\u003eThis small 5V non-contact liquid level sensor with Gravity Interface is able to detect 0-100°C conductive liquid levels in non-metallic containers in sensing range of 3mm. Provided with digital quantity output(low), the sensor can be directly used on Arduino UNO for liquid level detection of the water tank, beverage machine, water pipe, scientific experiment test tube, etc.\u003c\/p\u003e\n\u003cp\u003e\u003cimg\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38037-content1.webp?v=1791349045\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38037-content2.webp?v=1791349066\" alt=\"\"\u003e\u003cimg\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003e       Samll Size                                                                                                               \u003c\/b\u003e\u003cb\u003eThickness Range: 3mm\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eWith IP67 protection level, the module employs an integrated seamless shell and fully enclosed waterproof glue encapsulation process to block the intrusion of dust and protect internal electric components. Besides, the sensor cable, with great electrical conductivity, is flexible, durable, waterproof, and oil-proof.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38037-content3.webp?v=1791349095\" alt=\"\"\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eConnection Diagram\u003c\/b\u003e\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eGravity interface,\u003cb\u003e easy to connect \u003c\/b\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003eSmall size \u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eIP67\u003c\/b\u003e protection grade\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecification\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSupply Voltage: 5V\u003c\/li\u003e\n\u003cli\u003eThickness Range: \u003cb\u003e3mm \u003c\/b\u003e\n\u003c\/li\u003e\n\u003cli\u003eApplicable Medium: 0-100°C conductive liquid (can only detect non-metallic containers)\u003c\/li\u003e\n\u003cli\u003eOutput Mode: high\/low(low level output)\u003c\/li\u003e\n\u003cli\u003eWorking Current: ＜5mA\u003c\/li\u003e\n\u003cli\u003eWorking Temperature: -5~80°C\u003c\/li\u003e\n\u003cli\u003eStorage Temperature: -20~85°C\u003c\/li\u003e\n\u003cli\u003eProtection Level:\u003cb\u003e IP67 \u003c\/b\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eShipping List\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eGravity: Capacitive Non-contact Liquid Level Sensor(3mm TR, IP67) x1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDocuments\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/wiki.dfrobot.com\/sen0485\/\" target=\"_blank\"\u003eProduct Wiki\u003c\/a\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFRobot","offers":[{"title":"Default Title","offer_id":67582219386957,"sku":"E38037-001","price":14.57,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38037-win1.jpg?v=1791349137"},{"product_id":"gravity-ip65-capacitive-soil-moisture-sensor-for-arduino-esp32-raspberry-pi-1","title":"Gravity: IP65 Capacitive Soil Moisture Sensor for Arduino \/ ESP32 \/ Raspberry Pi","description":"\u003ch2\u003eIntroduction\u003c\/h2\u003e\n\u003cp\u003eThe Gravity Capacitive Soil Moisture Sensor offers IP65 waterproof protection and corrosion resistance, designed for long-term outdoor gardening, automated irrigation systems, and environmental science projects. Using advanced capacitive sensing technology, it outperforms traditional resistive sensors with higher accuracy and durability in humid or wet soil. This sensor provides an analog output signal, making it easily compatible with popular microcontrollers like Arduino, ESP32, and even Raspberry Pi (with an external ADC module), ensuring reliable moisture monitoring for optimal plant health in harsh outdoor conditions like balconies, gardens, and farms.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38038-content1.webp?v=1791349339\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eFully Waterproof Design \u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThe entire body of the sensor is waterproof, allowing it to be fully submerged in water without any performance degradation. This ensures reliable operation in outdoor gardens, greenhouses, and potted plants where exposure to water and humidity is frequent. Whether used in heavy rain or constant irrigation, the sensor continues to deliver accurate readings.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eCorrosion-Resistant and Durable \u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eDesigned with longevity in mind, the sensor's capacitive measurement principle eliminates the corrosion risks common in traditional resistive sensors. The robust construction prevents the sensor from wearing down even when left in soil for extended periods, reducing the need for frequent replacements. Its scratch-resistant surface further enhances durability, making it perfect for long-term use in harsh environments.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eNote: \u003c\/b\u003eFor more detailed insights on selecting the most suitable sensor, refer to the guide on [How to Select the Best Soil Moisture Sensors for Agriculture and Research Lab], compare all soil sensor models side by side.\u003c\/p\u003e\n\u003ch2\u003eSpecification\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSupply Voltage: 3.3 ~ 5.5VDC \u003c\/li\u003e\n\u003cli\u003eInterface: 2.54-3Pin\u003c\/li\u003e\n\u003cli\u003eOutput Voltage: 0 ~ 3VDC (Analog Output)\u003c\/li\u003e\n\u003cli\u003eCable Length: 1.5m\u003c\/li\u003e\n\u003cli\u003eDimension (L x W) : 175 x 30mm \/ 6.89 x 1.18 inches\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eShipping List\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eAnalog Waterproof Soil Moisture Sensor *1\u003c\/li\u003e\n\u003cli\u003eWaterproof Label *4\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDocuments\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/wiki.dfrobot.com\/sen0308\/\" target=\"_blank\"\u003eProduct Wiki\u003c\/a\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFRobot","offers":[{"title":"Default Title","offer_id":67582318411853,"sku":"E38038-001","price":20.85,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38038-win1.jpg?v=1791349370"},{"product_id":"gravity-analog-capacitive-corrosion-resistant-soil-moisture-sensor-for-arduino-raspberry-pi-1","title":"Gravity: Analog Capacitive Corrosion Resistant Soil Moisture Sensor for Arduino \/ Raspberry Pi","description":"\u003ch2\u003eIntroduction\u003c\/h2\u003e\n\u003cp\u003eGravity: Capacitive Soil Moisture Sensor is ideal for environmental science courses and indoor gardening applications. Operating within a voltage range of 3.3 to 5.5V, this sensor provides an analog output of 1.2 to 2.5V, making it compatible with low-voltage MCUs, including both 3.3V and 5V logic systems, allowing for easy integration with popular platforms such as Arduino and Raspberry Pi. It features a \u003cb\u003ewaterproof detection area,\u003c\/b\u003e effectively measuring soil moisture levels while resisting corrosion for reliable performance in outdoor and controlled environments. The capacitive design offers 2-3 times the lifespan of resistive sensors, ensuring long-term durability and dependable monitoring.\u003c\/p\u003e\n\u003cp\u003eThis detector is compatible with our 3-pin \"Gravity\" interface, which means it can be directly connected to the Gravity I\/O Expansion Shield.\u003c\/p\u003e\n\u003cp\u003eFor more detailed insights on selecting the most suitable sensor, refer to the guide on [\u003cb\u003eHow to Select the Best Soil Moisture Sensors for Agriculture and Research Lab\u003c\/b\u003e].\u003c\/p\u003e\n\u003cp\u003eThe following image shows an example project - a device that notifies you when a plant needs to be watered.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38039-content1.webp?v=1791349795\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003eAnalog Soil Moisture Sensor Projects:\u003cb\u003eAnalog Soil Moisture Sensor Project 1: IOT Plant Moisture Notifier\u003c\/b\u003eGet a text or call if your plant is getting too dry, along with a nice LCD display giving information regarding your plant's health.\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"1102\" height=\"620\" src=\"https:\/\/www.youtube.com\/embed\/tO-deA3FmXU\" title=\"Happy Plant Monitor Demonstration Video\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eHardware Components:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eParticle Photon\u003c\/li\u003e\n\u003cli\u003eSoil Moisture Sensor For Arduino\u003c\/li\u003e\n\u003cli\u003eI2C 16x2 Arduino LCD Display Module\u003c\/li\u003e\n\u003cli\u003eRGB Diffused Common Cathode\u003c\/li\u003e\n\u003cli\u003eMicro USB Connector\u003c\/li\u003e\n\u003cli\u003eUxcell Perf Board 4x6cm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003e\u003cbr\u003eParticle Photon Project 2: Annoying Soil Moisture Sensor with Photon and IFTTT Project\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eNever forget to water your plants again with this super annoying project. It combines visual, auditory, and textual cues that will prevent you from doing anything else until you provide your plant with much-needed hydration. A piezo buzzer constantly blares a shrill note, while a super-bright LED annoys your peripheral vision. In addition, this project will send constant texts to your phone reminding you that your plant needs to be watered. Sounds like fun, right?\u003c\/p\u003e\n\u003cp\u003eHardware Components:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDigital Buzzer For Arduino\u003c\/li\u003e\n\u003cli\u003eBright LED Module\u003c\/li\u003e\n\u003cli\u003eAnalog Capacitive Soil Moisture Sensor\u003c\/li\u003e\n\u003cli\u003eParticle Photon\u003c\/li\u003e\n\u003cli\u003eMicro USB Cable\u003c\/li\u003e\n\u003cli\u003e400 Tie Point Interlocking Solderless Breadboard\u003c\/li\u003e\n\u003cli\u003eArduino Jumper Cables (M\/M) (65 Pack)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003e\u003cbr\u003eProject 3: OBLOQ-IoT Module +Micro:bit IoT Flower Watering \u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eHardware Components:\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGravity: UART OBLOQ – IOT Module (Microsoft Azure)\u003c\/li\u003e\n\u003cli\u003eMicro:Mate - A Mini Expansion Board for micro:bit (Gravity Compatible)\u003c\/li\u003e\n\u003cli\u003eMicro:bit - an Educational \u0026amp; Creative Tool for Kids\u003c\/li\u003e\n\u003cli\u003e9g Metal Gear Micro Servo (1.8Kg)\u003c\/li\u003e\n\u003cli\u003eOne bottle and part of tube\u003c\/li\u003e\n\u003cli\u003eGravity: Analog Capacitive Soil Moisture Sensor- Corrosion Resistant\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSupports Gravity 3-Pin Interface\u003c\/li\u003e\n\u003cli\u003eAnalog Output\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eGardening \u0026amp; Farming\u003c\/li\u003e\n\u003cli\u003eMoisture Detection\u003c\/li\u003e\n\u003cli\u003eIntelligent Agriculture\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecification\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eOperating Voltage: 3.3 ~ 5.5 VDC\u003c\/li\u003e\n\u003cli\u003eOutput Voltage: 1.2 ~ 2.5V\u003c\/li\u003e\n\u003cli\u003eInterface: PH2.0-3P\u003c\/li\u003e\n\u003cli\u003eDimension: 98mm * 23mm (3.86in x 0.905in)\u003c\/li\u003e\n\u003cli\u003eWeight: 15g\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eShipping List\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eCapacitive Soil Moisture Sensor x1\u003c\/li\u003e\n\u003cli\u003eAnalog Sensor Cable x1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDocuments\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/wiki.dfrobot.com\/sen0193\/\" target=\"_blank\"\u003eProduct Wiki\u003c\/a\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFRobot","offers":[{"title":"Default Title","offer_id":67582394040397,"sku":"E38039-001","price":12.45,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38039-win1.jpg?v=1791349902"},{"product_id":"gravity-analog-resistive-soil-moisture-sensor-for-arduino-raspberry-pi","title":"Gravity: Analog Resistive Soil Moisture Sensor for Arduino \/ Raspberry Pi","description":"\u003ch2\u003eIntroduction\u003c\/h2\u003e\n\u003cp\u003eThe Gravity Analog Soil Moisture Sensor offers resistive soil moisture detection with 0-4.2V analog output, compatible with Arduino and Raspberry Pi. Designed for \u003cb\u003eshort-term indoor plant monitoring and educational projects\u003c\/b\u003e. Perfect for smart home IoT projects and basic electronics courses, this 3.3V\/5V sensor features plug-and-play integration and cost-effective soil moisture analysis.\u003c\/p\u003e\n\u003cp\u003eThe new soil moisture sensor uses Immersion Gold which protects the nickel from oxidation.  Electroless nickel immersion gold (ENIG) has several advantages over more conventional (and more cost effective) surface platings such as HASL (solder), including excellent surface planarity (particularly helpful for PCB's with large BGA packages), good oxidation resistance, and usability for untreated contact surfaces such as membrane switches and contact points.\u003c\/p\u003e\n\u003cp\u003eThis soil moisture Arduino sensor uses the two probes to pass current through the soil, and then it reads that resistance to get the moisture level. More water makes the soil conduct electricity more easily (less resistance), while dry soil conducts electricity poorly (more resistance).\u003c\/p\u003e\n\u003cp\u003eThis sensor will be helpful in reminding you to water your indoor plants or monitor the soil moisture in your garden.\u003c\/p\u003e\n\u003cp\u003eTo ease the difficult of using this sensor,  a Gravity Interface is adapted to allow plug \u0026amp; play. The Arduino IO expansion shield is the best match for this sound senor connecting to your Arduino. As this sensor can work at 3.3V, makes it compatible with Raspberry Pi, \u003cspan\u003eIntel Edison\u003c\/span\u003e, joule, and curie.\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38040-content1.webp?v=1791350062\" alt=\"\"\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eNote: \u003c\/strong\u003e\u003c\/span\u003eFor more detailed insights on selecting the most suitable sensor, refer to the guide on [\u003cb\u003eHow to Select the Best Soil Moisture Sensors for Agriculture and Research Lab\u003c\/b\u003e], compare all soil sensor models side by side.\u003c\/p\u003e\n\u003cp\u003eChoose this resistive sensor for cost-effective experiments and short-term indoor projects. If you are going to place the sensor to very humid soil, that would make it very easy to get the sensor surface erosion within several days, hence we suggest to use this one Analog Capacitive Soil Moisture Sensor- Corrosion Resistant instead.\u003c\/p\u003e\n\u003ch2\u003eSpecification\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePower supply: 3.3v or 5v\u003c\/li\u003e\n\u003cli\u003eOutput voltage signal: 0~4.2v\u003c\/li\u003e\n\u003cli\u003eCurrent: 35mA\u003c\/li\u003e\n\u003cli\u003ePin definition:\n\u003cul\u003e\n\u003cli\u003eAnalog output (Blue wire)\u003c\/li\u003e\n\u003cli\u003eGND (Black wire)\u003c\/li\u003e\n\u003cli\u003ePower (Red wire)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eSize: 60x20x5mm (2.36x0.79x0.2\")\u003c\/li\u003e\n\u003cli\u003eSurface finish:Immersion Gold\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eShipping List\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eMoisture sensor x1\u003c\/li\u003e\n\u003cli\u003eAnalog Sensor Cable x1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDocuments\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/wiki.dfrobot.com\/sen0114\/\" target=\"_blank\"\u003eProduct Wiki\u003c\/a\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFRobot","offers":[{"title":"Default Title","offer_id":67582435819597,"sku":"E38040-001","price":11.38,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38040-win1.jpg?v=1791350090"},{"product_id":"rs485-4-in-1-soil-moisture-temperature-ph-ec-sensor-for-smart-agriculture-ip68-5-30v","title":"RS485 4-in-1 Soil Moisture, Temperature, pH \u0026 EC Sensor for Smart Agriculture (IP68, 5-30V)","description":"\u003ch2\u003eIntroduction\u003c\/h2\u003e\n\u003cp\u003eThe 4-in-1 soil sensor is designed to monitor key soil parameters: \u003cb\u003etemperature, humidity, electrical conductivity (EC), and pH\u003c\/b\u003e. With its wide voltage power supply range of \u003cb\u003e5-30V \u003c\/b\u003eand \u003cb\u003eRS485 data transmission\u003c\/b\u003e using the reliable \u003cb\u003eMODBUS-RTU\u003c\/b\u003e protocol, this sensor delivers rapid, accurate, and stable readings, enabling optimal irrigation scheduling and precise soil management. It is compatible with the Arduino UNO and TTL to RS485 expansion board for easy setup. It is suitable for a variety of agricultural, horticultural, and environmental applications, including greenhouse farming, large-scale irrigation systems, and scientific research. For most soil monitoring projects, this 4-in-1 sensor provides all the necessary data in one device, eliminating the need for multiple individual sensors.\u003c\/p\u003e\n\u003cp\u003eThe soil sensor boasts an IP68 protection level, vacuum-filled and sealed with black flame-retardant epoxy resin. The probe, crafted from 316 stainless steel, offers rust-proof, waterproof, anti-corrosion, salt-alkali corrosion resistance, and long-term electrolysis resistance properties. Its performance is influenced by the soil salt content. Compact in size, it can be buried in the soil for extended periods and is compatible with various soil types.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38041-content1.webp?v=1791350243\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38041-content2.webp?v=1791350255\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003eThe soil sensor features an automatic temperature compensation function for conductivity, ensuring measurement accuracy regardless of environmental changes. Its applications span across agricultural irrigation, greenhouses, floriculture and vegetable farming, grassland pastures, rapid soil testing, plant cultivation, scientific experiments, grain storage, and the measurement of moisture content and temperature of various particulate matter.\u003c\/p\u003e\n\u003cp\u003eSoil temperature and moisture directly influence plant growth and nutrient absorption. Soil electrical conductivity (EC) represents soil salinity, a crucial indicator of soil fertility and health. High soil salt content hinders water absorption by plants. Soil pH, or “soil reaction”, is an acid-base reaction of the soil solution, dependent on the concentration of hydrogen ions. It’s expressed by the pH value, with 7 being neutral, less than 7 acidic, and greater than 7 alkaline. Soil pH can generally be divided into the following levels:\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003ePH value Soil acidity and alkalinity \u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e＜4.5 Extremely acidic\u003c\/p\u003e\n\u003cp\u003e4.5-5.5 Strongly acidic\u003c\/p\u003e\n\u003cp\u003e5.5-6.5 acidic\u003c\/p\u003e\n\u003cp\u003e6.5-7.5 Neutral\u003c\/p\u003e\n\u003cp\u003e7.5-8.5 alkaline\u003c\/p\u003e\n\u003cp\u003e8.5-9.5 Strongly alkaline\u003c\/p\u003e\n\u003cp\u003e\u0026gt;9.5 Extremely alkaline\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38041-content3.webp?v=1791350292\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003eFor more detailed insights on selecting the most suitable sensor, refer to the guide on [How to Select the Best Soil Moisture Sensors for Agriculture and Research Lab].\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e5-30V wide voltage power supply\u003c\/li\u003e\n\u003cli\u003eRS485 output, can be used with Arduino\u003c\/li\u003e\n\u003cli\u003eWith automatic temperature compensation, high precision, fast response and stable output\u003c\/li\u003e\n\u003cli\u003eStainless steel probe can be buried in soil or water for a long time\u003c\/li\u003e\n\u003cli\u003eResin vacuum filling and sealing, IP68 protection level\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38041-content4.webp?v=1791350319\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch2\u003eSpecification\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePower supply voltage: DC5-30V\u003c\/li\u003e\n\u003cli\u003ePower consumption: 0.5W@24V\u003c\/li\u003e\n\u003cli\u003eOutput mode: RS485\u003c\/li\u003e\n\u003cli\u003eDetection parameters: Temperature,、Humidity、Electrical Conductivity (EC)、PH\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHumidity parameters \u003c\/b\u003e\u003cbr\u003eMeasuring range: 0-100%\u003cbr\u003eResolution: 0.1%\u003cbr\u003eAccuracy: 0-50%@±2%, 50-100%@±3%\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTemperature parameters \u003c\/b\u003e\u003cbr\u003eMeasuring range: -40°C~+80°C\u003cbr\u003eResolution: 0.1°C\u003cbr\u003eAccuracy: ±0.5°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eEC parameters \u003c\/b\u003e\u003cbr\u003eMeasuring range: 0-20000us\/cm\u003cbr\u003eResolution: 1us\/cm\u003cbr\u003eAccuracy: 0-10000us\/cm@±3%FS, 10000-20000us\/cm@±5%FS\u003cbr\u003eTemperature compensation: memory temperature compensation, compensation range 0-50°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003epH parameters \u003c\/b\u003e\u003cbr\u003eMeasuring range: 3-9pH\u003cbr\u003eResolution: 0.1pH\u003c\/li\u003e\n\u003cli\u003eProtection level: IP68\u003c\/li\u003e\n\u003cli\u003eProbe material: anti-corrosion special electrode\u003c\/li\u003e\n\u003cli\u003eSealing material: black flame retardant epoxy resin\u003c\/li\u003e\n\u003cli\u003eWorking temperature: -20°C~+60°C\u003c\/li\u003e\n\u003cli\u003eCable length: 2m\u003c\/li\u003e\n\u003cli\u003eSize: 123*45*15mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eShipping List\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eRS485 Soil Sensor(Temperature \u0026amp; Humidity \u0026amp; EC \u0026amp; pH) x1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDocuments\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/wiki.dfrobot.com\/sen0604\/\" target=\"_blank\"\u003eProduct Wiki\u003c\/a\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFRobot","offers":[{"title":"Default Title","offer_id":67582478352461,"sku":"E38041-001","price":109.67,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38041-win1.jpg?v=1791350353"},{"product_id":"modbus-rtu-rs485-soil-ec-and-ph-monitoring-sensor-ip68-5-30v","title":"MODBUS-RTU RS485 Soil EC and pH Monitoring Sensor (IP68, 5-30V)","description":"\u003ch2\u003eIntroduction\u003c\/h2\u003e\n\u003cp\u003eThe soil \u003cb\u003eelectrical conductivity (EC) and pH sensor\u003c\/b\u003e operate within a wide voltage range of 5-30V, transmit data via RS485 using the MODBUS-RTU protocol, and deliver quick, reliable responses with minimal interference from environmental factors. The sensor is designed for easy integration with Arduino systems and is well-suited for hydroponic systems, saline and alkaline soil management, and drip irrigation systems.\u003c\/p\u003e\n\u003cp\u003eThe soil sensor boasts an IP68 protection level, vacuum-filled and sealed with black flame-retardant epoxy resin. The probe, crafted from 316 stainless steel, offers rust-proof, waterproof, anti-corrosion, salt-alkali corrosion resistance, and long-term electrolysis resistance properties. Its performance is influenced by the soil salt content. Compact in size, it can be buried in the soil for extended periods and is compatible with various soil types.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38042-content1.webp?v=1791351186\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38042-content2.webp?v=1791351185\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003eThe soil sensor features an automatic temperature compensation function for conductivity, ensuring measurement accuracy regardless of environmental changes. Its applications span across agricultural irrigation, greenhouses, floriculture and vegetable farming, grassland pastures, rapid soil testing, plant cultivation, scientific experiments, grain storage, and other soil environment testing scenarios.\u003c\/p\u003e\n\u003cp\u003eSoil electrical conductivity (EC) represents the salinity level in the soil. These parameters serve as crucial indicators of soil fertility and health, with a direct impact on plant life. High salt content in soil impedes water absorption by plants, despite high soil moisture content. This condition could eventually “burn” the plant. Optimal plant growth occurs within preferred environmental conditions, including specific ranges of soil moisture, temperature, and EC levels. Data on these parameters is essential for growers to understand necessary actions for ensuring plant health and achieving higher yields.\u003c\/p\u003e\n\u003cp\u003eSoil pH, also referred to as “soil reaction”, is an acid-base reaction of the soil solution. It primarily depends on the concentration of hydrogen ions in the soil solution, expressed by the pH value. A solution with a pH value of 7 is neutral; a solution with a pH value less than 7 exhibits an acidic reaction; a solution with a pH value greater than 7 shows an alkaline reaction. Soil pH can generally be categorized into the following levels:\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003ePH value Soil acidity and alkalinity \u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e＜4.5 Extremely acidic\u003c\/p\u003e\n\u003cp\u003e4.5-5.5 Strongly acidic\u003c\/p\u003e\n\u003cp\u003e5.5-6.5 acidic\u003c\/p\u003e\n\u003cp\u003e6.5-7.5 Neutral\u003c\/p\u003e\n\u003cp\u003e7.5-8.5 alkaline\u003c\/p\u003e\n\u003cp\u003e8.5-9.5 Strongly alkaline\u003c\/p\u003e\n\u003cp\u003e\u0026gt;9.5 Extremely alkaline\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38042-content3.webp?v=1791351225\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003eFor more detailed insights on selecting the most suitable sensor, refer to the guide on [\u003cb\u003eHow to Select the Best Soil Moisture Sensors for Agriculture and Research Lab\u003c\/b\u003e].\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e5-30V wide voltage power supply\u003c\/li\u003e\n\u003cli\u003eRS485 output, can be used with Arduino\u003c\/li\u003e\n\u003cli\u003eWith automatic temperature compensation, high precision, fast response and stable output\u003c\/li\u003e\n\u003cli\u003eStainless steel probe can be buried in soil or water for a long time\u003c\/li\u003e\n\u003cli\u003eResin vacuum filling and sealing, IP68 protection level\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38042-content4.webp?v=1791351247\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch2\u003eSpecification\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePower supply voltage: DC 5-30V\u003c\/li\u003e\n\u003cli\u003ePower consumption: 0.5W@24V\u003c\/li\u003e\n\u003cli\u003eOutput mode: RS485\u003c\/li\u003e\n\u003cli\u003eDetection parameters: Electrical Conductivity (EC), PH\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eEC parameters \u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMeasuring range: 0-20000us\/cm\u003c\/li\u003e\n\u003cli\u003eResolution: 1us\/cm\u003c\/li\u003e\n\u003cli\u003eAccuracy: 0-10000us\/cm@±3%FS, 10000-20000us\/cm@±5%FS\u003c\/li\u003e\n\u003cli\u003eTemperature compensation: memory temperature compensation, compensation range 0-50°C\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003epH parameters \u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMeasuring range: 3-9pH\u003c\/li\u003e\n\u003cli\u003eResolution: 0.1pH\u003c\/li\u003e\n\u003cli\u003eProtection level: IP68\u003c\/li\u003e\n\u003cli\u003eProbe material: anti-corrosion special electrode\u003c\/li\u003e\n\u003cli\u003eSealing material: black flame retardant epoxy resin\u003c\/li\u003e\n\u003cli\u003eWorking temperature: -20°C~+60°C\u003c\/li\u003e\n\u003cli\u003eCable length: 2m\u003c\/li\u003e\n\u003cli\u003eSize: 123*45*15mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eShipping List\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eRS485 Soil Sensor (EC\u0026amp;PH) x1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDocuments\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/wiki.dfrobot.com\/sen0603\/\" target=\"_blank\"\u003eProduct Wiki\u003c\/a\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFRobot","offers":[{"title":"Default Title","offer_id":67582648385613,"sku":"E38042-001","price":107.26,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38042-win1.jpg?v=1791351309"},{"product_id":"rs485-modbus-rtu-soil-npk-measure-sensor-for-efficient-agricultural-ip68-5-30v","title":"RS485 MODBUS-RTU Soil NPK Measure Sensor for Efficient Agricultural (IP68, 5-30V)","description":"\u003ch2\u003eIntroduction\u003c\/h2\u003e\n\u003cp\u003eThe Soil Sensor is designed to measure and monitor the \u003cb\u003enitrogen (N), phosphorus (P), and potassium (K) levels in soil\u003c\/b\u003e, enabling the optimization of soil fertility and creating ideal conditions for plant growth. With a broad voltage power supply range of 5-30V and data output through the reliable RS485 MODBUS-RTU protocol. It is compatible with the Arduino UNO and TTL to RS485 expansion board for easy setup. Its ability to measure nitrogen, phosphorus, and potassium helps optimize soil fertility, improve plant growth, and enhance yields, making it an essential component for efficient farming, greenhouse cultivation, and hydroponic systems.\u003c\/p\u003e\n\u003cp\u003eConstructed with a high protection level of IP68, the soil sensor is vacuum-sealed with black flame-retardant epoxy resin. The probe is crafted from 316 stainless steel, offering rust-proof, waterproof, and anti-corrosion properties. It also resists salt-alkali corrosion and long-term electrolysis, making it highly durable even in soils with high salt content. Its compact size allows for long-term burial in various soil types without affecting its performance.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38043-content1.webp?v=1791351573\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38043-content2.webp?v=1791351573\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003eThe Soil Sensor finds extensive applications in various soil environment detection scenarios. These include agricultural irrigation, greenhouses, flowers and vegetables cultivation, grassland and pastures, rapid soil testing, plant cultivation, scientific experiments, and grain storage. Its versatility and reliability make it an invaluable tool in modern agriculture and soil science research.\u003c\/p\u003e\n\u003cp\u003eNote: Nitrogen, phosphorus, and potassium sensor data can only be used as a reference and cannot be as accurate as professional instruments.\u003c\/p\u003e\n\u003cp\u003eNitrogen (N): Nitrogen is a component of organic matter such as proteins, nucleic acids, and amino acids in plants, and plays an important role in plant growth and development. Nitrogen fertilizer can promote the growth of plant leaves, increase the green part of the plant, and improve the efficiency of photosynthesis. Lack of nitrogen will cause yellowing of plant leaves and retarded growth, affecting plant yield and quality.\u003c\/p\u003e\n\u003cp\u003ePhosphorus (P): Phosphorus is a component of important compounds such as DNA, RNA, and ATP in plants, and plays a key role in the energy metabolism, growth, and development of plants. Phosphorus fertilizer can promote plant root development and flower bud differentiation, and increase plant flowering and fruiting. Lack of phosphorus will lead to short root systems and poor flower bud differentiation, affecting plant reproductive growth and yield.\u003c\/p\u003e\n\u003cp\u003ePotassium (K): Potassium is an important ion in plants that regulates osmotic pressure and maintains ion balance. It plays an important role in plants' water balance and nutrient absorption. Potassium fertilizer can promote plant root growth and nutrient transport within the plant, increasing plant stress resistance and yield. Lack of potassium will cause plant leaf margins to scorch, reduce fruit quality, and affect plant growth and yield.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38043-content3.webp?v=1791351604\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003eFor more detailed insights on selecting the most suitable sensor, refer to the guide on [How to Select the Best Soil Moisture Sensors for Agriculture and Research Lab].\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e5-30V wide voltage power supply\u003c\/li\u003e\n\u003cli\u003eRS485 output, can be used with Arduino\u003c\/li\u003e\n\u003cli\u003eHigh precision, fast response, and stable output\u003c\/li\u003e\n\u003cli\u003eStainless steel probe can be buried in soil or water for a long time\u003c\/li\u003e\n\u003cli\u003eResin vacuum filling and sealing, IP68 protection level\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38043-content4.webp?v=1791351619\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch2\u003eSpecification\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePower supply voltage: DC5-30V\u003c\/li\u003e\n\u003cli\u003ePower consumption: 0.15W@12V\u003c\/li\u003e\n\u003cli\u003eOutput mode: RS485\u003c\/li\u003e\n\u003cli\u003eDetection parameters: Nitrogen (N), Phosphorus (P), Potassium (K)\u003c\/li\u003e\n\u003cli\u003eNPK range: 0-2999mg\/kg (mg\/L)\u003c\/li\u003e\n\u003cli\u003eResolution: 1mg\/kg (mg\/L)\u003c\/li\u003e\n\u003cli\u003eAccuracy: ≤5% (subject to the actual measuring instrument)\u003c\/li\u003e\n\u003cli\u003eProtection level: IP68\u003c\/li\u003e\n\u003cli\u003eProbe material: anti-corrosion special electrode\u003c\/li\u003e\n\u003cli\u003eSealing material: black flame-retardant epoxy resin\u003c\/li\u003e\n\u003cli\u003eWorking temperature: 0°C~+55°C\u003c\/li\u003e\n\u003cli\u003eCable length: 2m\u003c\/li\u003e\n\u003cli\u003eSize: 123*45*15mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eShipping List\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eRS485 Soil Sensor (N\u0026amp;P\u0026amp;K) x1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDocuments\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/wiki.dfrobot.com\/sen0605\/\" target=\"_blank\"\u003eProduct Wiki\u003c\/a\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFRobot","offers":[{"title":"Default Title","offer_id":67582694850637,"sku":"E38043-001","price":85.5,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38043-win1.jpg?v=1791351658"},{"product_id":"rs485-soil-ph-moisture-temperature-monitoring-sensor-for-hydroponics-ip68-5-30v","title":"RS485 Soil pH, Moisture, Temperature Monitoring Sensor for Hydroponics (IP68, 5-30V)","description":"\u003ch2\u003eIntroduction\u003c\/h2\u003e\n\u003cp\u003eThis RS485 soil \u003cb\u003etemperature, humidity, and pH\u003c\/b\u003e sensor supports a broad voltage power supply range (5-30V) and communicates data through the reliable MODBUS-RTU protocol, allowing for seamless integration into existing automated irrigation systems. It can be paired with an Arduino UNO and a TTL to RS485 expansion board for easy setup. By ensuring optimal pH, moisture, and temperature levels, this Anti-corrosion soil sensor helps prevent over- or under-watering and maintains nutrient balance for hydroponics and soil-less cultivation\u003c\/p\u003e\n\u003cp\u003eThe protection level of the soil sensor is IP68, and it is vacuum-filled and sealed with black flame-retardant epoxy resin. The probe material is made of 316 stainless steel, which is rust-proof, waterproof, anti-corrosion, salt-alkali corrosion resistance, and long-term electrolysis resistance. It is more affected by the soil salt content. It is small, can be buried in the soil for a long time, and is suitable for various soil types.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38044-content1.webp?v=1791351839\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38044-content2_670acd6e-d0ad-4e2a-8065-04e8c6465e18.webp?v=1791351852\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003eSoil sensors are widely used in agricultural irrigation, greenhouses, flowers and vegetables, grassland and pastures, soil rapid testing, plant cultivation, scientific experiments, grain storage and the measurement of moisture content and temperature of various particulate matter.\u003c\/p\u003e\n\u003cp\u003eSoil temperature has a direct impact on plant growth. Proper soil temperatures help promote plant root growth and the ability to absorb nutrients. Generally speaking, higher soil temperature is helpful for plant growth because it can increase plant metabolism, promote nutrient absorption and transport, and increase plant microbial synthesis capabilities, thereby promoting plant growth rate and yield.\u003c\/p\u003e\n\u003cp\u003eIn addition, appropriate soil moisture helps plant roots absorb water and nutrients and maintains water balance within plant cells. If the soil moisture is too low, plant roots will be limited in absorbing water, which can lead to plant dehydration, stagnant growth, or even death. Excessive soil moisture may cause hypoxia in plant roots, hinder normal respiration and nutrient absorption of roots, and thus affect plant growth and development.\u003c\/p\u003e\n\u003cp\u003eSoil pH, also known as \"soil reaction\". It is an acid-base reaction of the soil solution, which mainly depends on the concentration of hydrogen ions in the soil solution, expressed by the pH value. A solution with a pH value equal to 7 is a neutral solution; a solution with a pH value less than 7 is an acidic reaction; a solution with a pH value greater than 7 is an alkaline reaction. Soil pH can generally be divided into the following levels:\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003epH value Soil acidity and alkalinity \u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e＜4.5 Extremely acidic\u003c\/p\u003e\n\u003cp\u003e4.5-5.5 Strongly acidic\u003c\/p\u003e\n\u003cp\u003e5.5-6.5 acidic\u003c\/p\u003e\n\u003cp\u003e6.5-7.5 Neutral\u003c\/p\u003e\n\u003cp\u003e7.5-8.5 alkaline\u003c\/p\u003e\n\u003cp\u003e8.5-9.5 Strongly alkaline\u003c\/p\u003e\n\u003cp\u003e\u0026gt;9.5 Extremely alkaline\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38044-content3.webp?v=1791351880\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003eFor more detailed insights on selecting the most suitable sensor, refer to the guide on [How to Select the Best Soil Moisture Sensors for Agriculture and Research Lab].\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e5-30V wide voltage power supply\u003c\/li\u003e\n\u003cli\u003eRS485 output, can be used with Arduino\u003c\/li\u003e\n\u003cli\u003eHigh precision, fast response, and stable output\u003c\/li\u003e\n\u003cli\u003eStainless steel probe can be buried in soil or water for a long time\u003c\/li\u003e\n\u003cli\u003eResin vacuum filling and sealing, IP68 protection level\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38044-content4.webp?v=1791351895\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch2\u003eSpecification\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePower supply voltage: DC5-30V\u003c\/li\u003e\n\u003cli\u003ePower consumption: 0.5W@24V\u003c\/li\u003e\n\u003cli\u003eOutput mode: RS485\u003c\/li\u003e\n\u003cli\u003eDetection parameters: Temperature, Humidity, pH\u003c\/li\u003e\n\u003cli\u003eHumidity parameters\u003cbr\u003eMeasuring range: 0-100%\u003cbr\u003eResolution: 0.1%\u003cbr\u003eAccuracy: 0-50%@±2%, 50-100%@±3%\u003c\/li\u003e\n\u003cli\u003eTemperature parameters\u003cbr\u003eMeasuring range: -40°C~+80°C\u003cbr\u003eResolution: 0.1°C\u003cbr\u003eAccuracy: ±0.5°C\u003c\/li\u003e\n\u003cli\u003epH parameters\u003cbr\u003eMeasuring range: 3-9PH\u003cbr\u003eResolution: 0.1PH\u003c\/li\u003e\n\u003cli\u003eProtection level: IP68\u003c\/li\u003e\n\u003cli\u003eProbe material: anti-corrosion special electrode\u003c\/li\u003e\n\u003cli\u003eSealing material: black flame-retardant epoxy resin\u003c\/li\u003e\n\u003cli\u003eWorking temperature: -20°C~+60°C\u003c\/li\u003e\n\u003cli\u003eCable length: 2m\u003c\/li\u003e\n\u003cli\u003eSize: 123*45*15mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eShipping List\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eRS485 Soil Sensor (Temperature \u0026amp; Humidity \u0026amp; pH) x1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDocuments\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/wiki.dfrobot.com\/sen0602\/\" target=\"_blank\"\u003eProduct Wiki\u003c\/a\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFRobot","offers":[{"title":"Default Title","offer_id":67582750851149,"sku":"E38044-001","price":98.8,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38044-win1.jpg?v=1791351929"},{"product_id":"rs485-soil-temperature-moisture-ec-sensor-for-climate-control-in-greenhouses-ip68-5-30v-arduino-compatible","title":"RS485 Soil Temperature, Moisture, EC Sensor for Climate Control in Greenhouses (IP68, 5-30V, Arduino Compatible)","description":"\u003ch2\u003eIntroduction\u003c\/h2\u003e\n\u003cp\u003eThe RS485 Soil Sensor is a highly accurate and durable solution designed for \u003cb\u003ereal-time monitoring of soil temperature, moisture, and electrical conductivity (EC)\u003c\/b\u003e. The soil detector operates within a 5-30V wide voltage range and communicates data via the MODBUS-RTU protocol using RS485, ensuring reliable data transmission for integration with automated irrigation and climate control systems. It can be paired with an Arduino UNO and a TTL to RS485 expansion board for easy setup. The soil measure sensor is perfect for smart farms growing rice, corn, and soybeans, as well as greenhouse environments requiring high precision in climate irrigation management.\u003c\/p\u003e\n\u003cp\u003eThe protection level of the soil sensor is IP68, and it is vacuum-filled and sealed with black flame-retardant epoxy resin. The probe material is made of 316 stainless steel, which is rust-proof, waterproof, anti-corrosion, salt-alkali corrosion resistance, and long-term electrolysis resistance. It is more affected by the soil salt content. It is small, can be buried in the soil for a long time, and is suitable for various soil types.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38045-content1.webp?v=1791352283\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38045-content2.webp?v=1791352283\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003eThe soil sensor has an automatic temperature compensation function for conductivity, which ensures measurement accuracy no matter how the environment changes.\u003c\/p\u003e\n\u003cp\u003eIt is widely used in agricultural irrigation, greenhouses, flowers and vegetables, grassland and pastures, soil rapid testing, plant culture, scientific experiments, grain storage and the measurement of moisture content and temperature of various particulate matter.\u003c\/p\u003e\n\u003cp\u003eSoil temperature has a direct impact on plant growth. Proper soil temperatures help promote plant root growth and the ability to absorb nutrients. Generally speaking, higher soil temperature is helpful for plant growth because it can increase plant metabolism, promote nutrient absorption and transport, and increase plant microbial synthesis capabilities, thereby promoting plant growth rate and yield.\u003c\/p\u003e\n\u003cp\u003eIn addition, appropriate soil moisture helps plant roots absorb water and nutrients and maintains water balance within plant cells. If the soil moisture is too low, plant roots will be limited in absorbing water, which can lead to plant dehydration, stagnant growth or even death. Excessive soil moisture may cause hypoxia in plant roots, hinder normal respiration and nutrient absorption of roots, and thus affect plant growth and development.\u003c\/p\u003e\n\u003cp\u003eSoil electrical conductivity (EC) is the level of salt in the soil (salinity). These parameters are important indicators of soil fertility and health, and ultimately affect plants. When soil has high salt content, the salt makes it difficult for plants to absorb water, even if the moisture content in the soil is high. This condition will eventually \"burn\" the plant. Plants grow best in their preferred environment within the optimal range of soil moisture, temperature and EC levels. Growers need data on these parameters and understand what actions need to be taken to ensure plant health and higher yields.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38045-content3.webp?v=1791352311\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003eFor more detailed insights on selecting the most suitable sensor, refer to the guide on [How to Select the Best Soil Moisture Sensors for Agriculture and Research Lab].\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eWide Voltage Range: \u003c\/b\u003eSupports 5-30V power supply.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eRS485 Output: \u003c\/b\u003eCompatible with Arduino and other systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAutomatic Temperature Compensation: \u003c\/b\u003eEnsures measurement accuracy regardless of environmental changes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eStainless Steel Probe: \u003c\/b\u003eDesigned for long-term burial in soil or water.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eIP68 Protection Level: \u003c\/b\u003eVacuum-filled and sealed with flame-retardant epoxy resin.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38045-content4.webp?v=1791352331\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch2\u003eSpecification\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePower supply voltage: DC5-30V\u003c\/li\u003e\n\u003cli\u003ePower consumption: 0.7W@24V\u003c\/li\u003e\n\u003cli\u003eOutput mode: RS485\u003c\/li\u003e\n\u003cli\u003eDetection parameters: Temperature, Humidity, Electrical Conductivity (EC)\u003c\/li\u003e\n\u003cli\u003eHumidity parameters\u003cbr\u003eMeasuring range: 0-100%\u003cbr\u003eResolution: 0.1%\u003cbr\u003eAccuracy: 0-50%@±2%, 50-100%@±3%\u003c\/li\u003e\n\u003cli\u003eTemperature parameters\u003cbr\u003eMeasuring range: -40°C~+80°C\u003cbr\u003eResolution: 0.1°C\u003cbr\u003eAccuracy: ±0.5°C\u003c\/li\u003e\n\u003cli\u003eEC parameters\u003cbr\u003eMeasuring range: 0-20000us\/cm\u003cbr\u003eResolution: 1us\/cm\u003cbr\u003eAccuracy: 0-10000us\/cm@±3%FS, 10000-20000us\/cm@±5%FS\u003cbr\u003eTemperature compensation: memory temperature compensation, compensation range 0-50°C\u003c\/li\u003e\n\u003cli\u003eProtection level: IP68\u003c\/li\u003e\n\u003cli\u003eProbe material: anti-corrosion special electrode\u003c\/li\u003e\n\u003cli\u003eSealing material: black flame retardant epoxy resin\u003c\/li\u003e\n\u003cli\u003eWorking temperature: -40°C~+60°C\u003c\/li\u003e\n\u003cli\u003eCable length: 2m\u003c\/li\u003e\n\u003cli\u003eSize: 123*45*15mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eShipping List\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eRS485 Soil Sensor (Temperature\u0026amp;Humidity\u0026amp;EC) x1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDocuments\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/wiki.dfrobot.com\/sen0601\/\" target=\"_blank\"\u003eProduct Wiki\u003c\/a\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFRobot","offers":[{"title":"Default Title","offer_id":67582793515085,"sku":"E38045-001","price":69.49,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38045-win1.jpg?v=1791352369"},{"product_id":"rs485-modbus-rtu-ip68-soil-temperature-moisture-sensor-for-automatic-irrigation-arduino-compatible","title":"RS485 MODBUS-RTU IP68 Soil Temperature \u0026 Moisture Sensor for Automatic Irrigation (Arduino Compatible)","description":"\u003ch2\u003eIntroduction\u003c\/h2\u003e\n\u003cp\u003eThe RS485 Soil Sensor is designed for\u003cb\u003e real-time monitoring of soil temperature and humidity\u003c\/b\u003e, ideal for large-scale agricultural applications, greenhouse management, and fruit orchards' automatic irrigation systems. Utilizing the MODBUS-RTU protocol via RS485 communication, the sensor provides reliable and fast data acquisition with a wide voltage range of 5-30V, making it compatible with various irrigation and climate control systems. Easily integrate it with Arduino UNO and TTL-to-RS485 expansion board for efficient test environment setup. Its robust construction features an IP68 protection level and a 316 stainless steel probe, ensuring durability in harsh environmental conditions.\u003c\/p\u003e\n\u003cp\u003eThe protection level of the soil sensor is IP68, and it is vacuum-filled and sealed with black flame-retardant epoxy resin. The probe material is made of 316 stainless steel, which is rust-proof, waterproof, anti-corrosion, salt-alkali corrosion resistance, and long-term electrolysis resistance. It is more affected by the soil salt content. It is small, can be buried in the soil for a long time, and is suitable for various soil types.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38046-content1.webp?v=1791352578\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38046-content2.webp?v=1791352578\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003eSoil sensors are widely used in agricultural irrigation, greenhouses, flowers and vegetables, grassland and pastures, soil rapid testing, plant cultivation, scientific experiments, grain storage and the measurement of moisture content and temperature of various particulate matter.\u003c\/p\u003e\n\u003cp\u003eSoil temperature has a direct impact on plant growth. Proper soil temperatures help promote plant root growth and the ability to absorb nutrients. Generally speaking, higher soil temperature is helpful for plant growth because it can increase plant metabolism, promote nutrient absorption and transport, and increase plant microbial synthesis capabilities, thereby promoting plant growth rate and yield.\u003c\/p\u003e\n\u003cp\u003eIn addition, appropriate soil moisture helps plant roots absorb water and nutrients and maintains water balance within plant cells. If the soil moisture is too low, plant roots will be limited in absorbing water, which can lead to plant dehydration, stagnant growth or even death. Excessive soil moisture may cause hypoxia in plant roots, hinder normal respiration and nutrient absorption of roots, and thus affect plant growth and development.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38046-content3.webp?v=1791352600\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003eHow to install and use the soil sensor\u003c\/p\u003e\n\u003cp\u003eFor more detailed insights on selecting the most suitable sensor, refer to the guide on [How to Select the Best Soil Moisture Sensors for Agriculture and Research Lab].\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eWide Voltage Range:\u003c\/b\u003e Supports 5-30V power supply.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eRS485 Output:\u003c\/b\u003e Compatible with Arduino and other systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFast Response: \u003c\/b\u003eEnsures timely data retrieval.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eStainless Steel Probe: \u003c\/b\u003eDesigned for long-term burial in soil or water.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eIP68 Protection Level: \u003c\/b\u003eVacuum-filled and sealed with flame-retardant epoxy resin.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38046-content4.webp?v=1791352619\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch2\u003eSpecification\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePower supply voltage: DC 5-30V\u003c\/li\u003e\n\u003cli\u003ePower consumption: 0.5W@24V\u003c\/li\u003e\n\u003cli\u003eOutput mode: RS485\u003c\/li\u003e\n\u003cli\u003eDetection parameters: Temperature, Humidity\u003c\/li\u003e\n\u003cli\u003eHumidity parameters\u003cbr\u003eMeasuring range: 0-100%\u003cbr\u003eResolution: 0.1%\u003cbr\u003eAccuracy: 0-50%@±2%, 50-100%@±3%\u003c\/li\u003e\n\u003cli\u003eTemperature parameters\u003cbr\u003eMeasuring range: -40°C~+80°C\u003cbr\u003eResolution: 0.1°C\u003cbr\u003eAccuracy: ±0.5°C\u003c\/li\u003e\n\u003cli\u003eProtection level: IP68\u003c\/li\u003e\n\u003cli\u003eProbe material: anti-corrosion special electrode\u003c\/li\u003e\n\u003cli\u003eSealing material: black flame retardant epoxy resin\u003c\/li\u003e\n\u003cli\u003eWorking temperature: -40°C~+60°C\u003c\/li\u003e\n\u003cli\u003eCable length: 2m\u003c\/li\u003e\n\u003cli\u003eSize: 123*45*15mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eShipping List\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eRS485 Soil Sensor (Temperature \u0026amp; Humidity) x1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDocuments\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/wiki.dfrobot.com\/sen0600\/\" target=\"_blank\"\u003eProduct Wiki\u003c\/a\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFRobot","offers":[{"title":"Default Title","offer_id":67582816682061,"sku":"E38046-001","price":48.34,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E38046-win1.jpg?v=1791352651"}],"url":"https:\/\/www.mlab.com.au\/collections\/senliquid.oembed?page=2","provider":"MLAB","version":"1.0","type":"link"}