{"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","url":"https:\/\/www.mlab.com.au\/products\/gravity-lab-grade-analog-ph-sensor-kit-for-arduino-raspberry-pi-with-calibration-solutions","provider":"MLAB","version":"1.0","type":"link"}