{"product_id":"rs485-photosynthetically-active-radiation-par-sensor-400-700nm","title":"RS485 Photosynthetically Active Radiation (PAR) Sensor (400-700nm)","description":"\u003ch2\u003eIntroduction\u003c\/h2\u003e\n\u003cp\u003eThe RS485 Photosynthetically Active Radiation (PAR) Sensor is designed to measure the amount of light that plants can utilize during photosynthesis. It operates within the \u003cb\u003espectral range of 400-700nm\u003c\/b\u003e, which corresponds to the light needed for plant growth. The sensor converts sunlight into a voltage signal that is directly proportional to the intensity of the incident radiation, with sensitivity that follows the cosine of the light's angle of incidence. This high-precision sensor is equipped with a specially treated dust cover to prevent environmental interference, ensuring reliable measurements. The sensor supports Modbus-RTU communication via RS485 and operates with a wide DC voltage range of 5-30V, making it compatible with various platforms like Arduino.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eWide Voltage Range and Easy Integration \u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThe sensor operates with a DC power supply from 5-30V, offering flexibility for integration into diverse systems. It supports RS485 communication using the standard Modbus-RTU protocol, making it simple to interface with Arduino and similar platforms for data collection.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eHigh Precision and Reliability \u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThe sensor features high-precision photoelectric elements with wide spectrum absorption, ensuring accurate measurements of photosynthetically active radiation (PAR) in the 400-700nm range. Additionally, the sensor's cosine corrector guarantees an accurate response to varying light angles, essential for precise environmental monitoring.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eDurable and Weather-Resistant \u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eConstructed with a metal aluminum shell and rated IP67 for protection against dust and water, the sensor is highly durable and suitable for use in harsh outdoor environments. The specially treated dust cover ensures long-term stability by minimizing the effects of environmental contamination.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E31013-content1.webp?v=1791452586\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003eRS485 PAR sensor measures photosynthetically active radiation (PAR) for plant photosynthesis.\u003c\/p\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eAgricultural Monitoring: Measuring light intensity for optimizing crop growth and assessing plant health.\u003c\/li\u003e\n\u003cli\u003ePhotovoltaic Systems: Monitoring solar radiation for efficient solar energy generation.\u003c\/li\u003e\n\u003cli\u003eEnvironmental and Ecological Research: Collecting data on radiation levels to support environmental studies and ecological conservation efforts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecification\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePower Supply: DC 5-30V\u003c\/li\u003e\n\u003cli\u003eWorking Current: ＜10mA\u003c\/li\u003e\n\u003cli\u003eOutput Mode: RS485\u003c\/li\u003e\n\u003cli\u003eMeasurement Range: 0-2500 µmol\/m²·s\u003c\/li\u003e\n\u003cli\u003eWavelength Range: 400-700nm\u003c\/li\u003e\n\u003cli\u003eAccuracy: ±5% (1000 µmol\/m²·s @ 550nm, 60%RH, 25°C)\u003c\/li\u003e\n\u003cli\u003eResolution: 1 µmol\/m²·s\u003c\/li\u003e\n\u003cli\u003eResponse Time: 10 µs\u003c\/li\u003e\n\u003cli\u003eNon-Linearity: ＜±1%\u003c\/li\u003e\n\u003cli\u003eAnnual Stability: ≤±2%\u003c\/li\u003e\n\u003cli\u003eCosine Response: ≤±10%\u003c\/li\u003e\n\u003cli\u003eOperating Temperature: -25°C to +60°C\u003c\/li\u003e\n\u003cli\u003eProtection Level: IP67\u003c\/li\u003e\n\u003cli\u003eSensor Cable Length: 20cm\u003c\/li\u003e\n\u003cli\u003eAdapter Cable Length: 70cm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eShipping List\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eRS485 PAR Sensor x1\u003c\/li\u003e\n\u003cli\u003eAdapter Cable x1\u003c\/li\u003e\n\u003cli\u003eScrew Package 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\/sen0641\/\" target=\"_blank\"\u003eProduct Wiki\u003c\/a\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"DFRobot","offers":[{"title":"Default Title","offer_id":67599798992973,"sku":"E31013-001","price":120.55,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E31013-win1.jpg?v=1791452624","url":"https:\/\/www.mlab.com.au\/products\/rs485-photosynthetically-active-radiation-par-sensor-400-700nm","provider":"MLAB","version":"1.0","type":"link"}