{"product_id":"seeed-studio-sensecap-par-sensor-par-2-5v-0-2500-µmol-m-s-0-2-5-v-analog-output","title":"SenseCAP PAR Sensor | PAR-2.5V, 0-2500 µmol\/m²·s, 0-2.5 V Analog Output","description":"\u003cdiv class=\"shopiot-detailed-description\" style=\"max-width: 800px; font-family: 'DM Sans', sans-serif; color: #2a2b2a; line-height: 1.6; font-size: 16px;\"\u003e\n\u003csection style=\"margin-bottom: 35px;\"\u003e\u003cp\u003eThe \u003cstrong\u003eSeeed Studio\u003c\/strong\u003e PAR-2.5V is a photosynthetically active radiation (PAR) sensor for growers, researchers and integrators who need to log plant-usable light in the 400-700 nm band. It is part of the SenseCAP sensor family.\u003c\/p\u003e\n\u003cp\u003eIt outputs a 0-2.5 V voltage that maps directly to 0-2500 µmol\/m²·s, so it connects to data loggers, data acquisition cards and remote acquisition modules without a protocol layer.\u003c\/p\u003e\u003c\/section\u003e\u003csection style=\"margin-bottom: 35px;\"\u003e\u003ch2 style=\"color: #7765e3; font-size: 16px; margin-bottom: 18px; font-weight: bold; text-transform: uppercase;\"\u003eCore Capabilities\u003c\/h2\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 15px;\"\u003e\n\u003cdiv style=\"display: flex; gap: 12px; align-items: flex-start; padding: 15px; border-radius: 4px; border: 1px solid #f5f5f5; background: #fff;\"\u003e\n\u003cspan style=\"color: #7765e3;\" aria-hidden=\"true\"\u003e\u003csvg width=\"20\" height=\"20\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003cpolyline points=\"22 12 18 12 15 21 9 3 6 12 2 12\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e\u003c\/span\u003e\u003cdiv style=\"font-size: 14px;\"\u003e\n\u003cstrong style=\"display: block; color: #2a2b2a;\"\u003ePAR-band measurement\u003c\/strong\u003e \u003cspan style=\"color: #555;\"\u003eA silicon photodetector behind a 400-700 nm optical filter produces a signal proportional to incident radiation. Range is 0-2500 µmol\/m²·s with 1 µmol\/m²·s resolution.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; gap: 12px; align-items: flex-start; padding: 15px; border-radius: 4px; border: 1px solid #f5f5f5; background: #fff;\"\u003e\n\u003cspan style=\"color: #7765e3;\" aria-hidden=\"true\"\u003e\u003csvg width=\"20\" height=\"20\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003ccircle cx=\"12\" cy=\"12\" r=\"10\"\u003e\u003c\/circle\u003e\u003cline x1=\"2\" y1=\"12\" x2=\"22\" y2=\"12\"\u003e\u003c\/line\u003e\u003cpath d=\"M12 2a15.3 15.3 0 0 1 4 10 15.3 15.3 0 0 1-4 10 15.3 15.3 0 0 1-4-10 15.3 15.3 0 0 1 4-10z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/span\u003e\u003cdiv style=\"font-size: 14px;\"\u003e\n\u003cstrong style=\"display: block; color: #2a2b2a;\"\u003eDirect voltage reading\u003c\/strong\u003e \u003cspan style=\"color: #555;\"\u003e0-2.5 V corresponds to 0-2500 µmol\/m²·s, so the value is simply the voltage multiplied by 1000. A reading of 1.25 V is 1250 µmol\/m²·s.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; gap: 12px; align-items: flex-start; padding: 15px; border-radius: 4px; border: 1px solid #f5f5f5; background: #fff;\"\u003e\n\u003cspan style=\"color: #7765e3;\" aria-hidden=\"true\"\u003e\u003csvg width=\"20\" height=\"20\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003cpath d=\"M12 22s8-4 8-10V5l-8-3-8 3v7c0 6 8 10 8 10z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/span\u003e\u003cdiv style=\"font-size: 14px;\"\u003e\n\u003cstrong style=\"display: block; color: #2a2b2a;\"\u003eCalibrated at the factory\u003c\/strong\u003e \u003cspan style=\"color: #555;\"\u003eEach sensor is calibrated before it ships. Accuracy is ±2%, linearity deviation is at most 1% and drift is under 2% per year.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; gap: 12px; align-items: flex-start; padding: 15px; border-radius: 4px; border: 1px solid #f5f5f5; background: #fff;\"\u003e\n\u003cspan style=\"color: #7765e3;\" aria-hidden=\"true\"\u003e\u003csvg width=\"20\" height=\"20\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003cpolyline points=\"20 6 9 17 4 12\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e\u003c\/span\u003e\u003cdiv style=\"font-size: 14px;\"\u003e\n\u003cstrong style=\"display: block; color: #2a2b2a;\"\u003eFast and always on\u003c\/strong\u003e \u003cspan style=\"color: #555;\"\u003eResponse time is 10 µs and the measurement interval is 1 s. The sensor works from -30 to +75 °C and 0-100% humidity (non-condensing), around the clock outdoors.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection style=\"margin-bottom: 35px; background-color: #fafafa; border-left: 4px solid #7765E3; padding: 20px; border-radius: 2px;\"\u003e\u003ch2 style=\"color: #7765e3; font-size: 16px; margin-top: 0; margin-bottom: 12px; font-weight: bold; text-transform: uppercase;\"\u003eIndustrial Applications\u003c\/h2\u003e\n\u003cdiv style=\"margin: 0; font-size: 15px;\"\u003e\n\u003cdiv style=\"margin-bottom: 10px; display: flex; align-items: flex-start;\"\u003e\n\u003cspan style=\"color: #7765e3; margin-right: 8px; font-weight: bold;\" aria-hidden=\"true\"\u003e•\u003c\/span\u003e \u003cspan\u003e\u003cstrong\u003eGreenhouse and crop monitoring:\u003c\/strong\u003e Track the light reaching a canopy to study crop growth and photosynthetic potential.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 10px; display: flex; align-items: flex-start;\"\u003e\n\u003cspan style=\"color: #7765e3; margin-right: 8px; font-weight: bold;\" aria-hidden=\"true\"\u003e•\u003c\/span\u003e \u003cspan\u003e\u003cstrong\u003ePlant growth research:\u003c\/strong\u003e Log PAR over time in experiments and research-institute trials.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 10px; display: flex; align-items: flex-start;\"\u003e\n\u003cspan style=\"color: #7765e3; margin-right: 8px; font-weight: bold;\" aria-hidden=\"true\"\u003e•\u003c\/span\u003e \u003cspan\u003e\u003cstrong\u003eEnvironmental monitoring:\u003c\/strong\u003e Add light data to environmental and ecological monitoring set-ups.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 10px; display: flex; align-items: flex-start;\"\u003e\n\u003cspan style=\"color: #7765e3; margin-right: 8px; font-weight: bold;\" aria-hidden=\"true\"\u003e•\u003c\/span\u003e \u003cspan\u003e\u003cstrong\u003eSolar energy and optical research:\u003c\/strong\u003e Use a calibrated PAR reading as a reference in solar energy and optical studies.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection style=\"margin-bottom: 35px;\"\u003e\u003ch2 style=\"color: #7765e3; font-size: 16px; margin-bottom: 10px; font-weight: bold; text-transform: uppercase;\"\u003eTechnical Integration\u003c\/h2\u003e\n\u003cdiv style=\"font-size: 14px; color: #555;\"\u003e\n\u003cdiv style=\"margin-bottom: 8px; display: flex; align-items: flex-start;\"\u003e\n\u003cspan style=\"color: #7765e3; margin-right: 8px; font-weight: bold;\" aria-hidden=\"true\"\u003e•\u003c\/span\u003e \u003cspan\u003e\u003cstrong\u003eConnectivity:\u003c\/strong\u003e Analog 0-2.5 V voltage output.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 8px; display: flex; align-items: flex-start;\"\u003e\n\u003cspan style=\"color: #7765e3; margin-right: 8px; font-weight: bold;\" aria-hidden=\"true\"\u003e•\u003c\/span\u003e \u003cspan\u003e\u003cstrong\u003eCompatible equipment:\u003c\/strong\u003e Connects to data collectors, data acquisition cards and remote data acquisition modules with a voltage input.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 8px; display: flex; align-items: flex-start;\"\u003e\n\u003cspan style=\"color: #7765e3; margin-right: 8px; font-weight: bold;\" aria-hidden=\"true\"\u003e•\u003c\/span\u003e \u003cspan\u003e\u003cstrong\u003ePower:\u003c\/strong\u003e 5-24 V DC supply.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 8px; display: flex; align-items: flex-start;\"\u003e\n\u003cspan style=\"color: #7765e3; margin-right: 8px; font-weight: bold;\" aria-hidden=\"true\"\u003e•\u003c\/span\u003e \u003cspan\u003e\u003cstrong\u003eMounting:\u003c\/strong\u003e A horizontal base lets you level the sensor before fixing it. Choose a spot with no obstacles above the sensing plane and no shadows on it.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 8px; display: flex; align-items: flex-start;\"\u003e\n\u003cspan style=\"color: #7765e3; margin-right: 8px; font-weight: bold;\" aria-hidden=\"true\"\u003e•\u003c\/span\u003e \u003cspan\u003e\u003cstrong\u003eVariant note:\u003c\/strong\u003e This listing covers the 0-2.5 V voltage version (PAR-2.5V) with a 2 m cable.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 8px; display: flex; align-items: flex-start;\"\u003e\n\u003cspan style=\"color: #7765e3; margin-right: 8px; font-weight: bold;\" aria-hidden=\"true\"\u003e•\u003c\/span\u003e \u003cspan\u003e\u003cstrong\u003eSetup help:\u003c\/strong\u003e Not sure how to wire it to your logger? The ShopIoT team can help with set-up.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection style=\"margin-bottom: 35px;\"\u003e\u003ch2 style=\"color: #7765e3; font-size: 16px; margin-bottom: 14px; font-weight: bold; text-transform: uppercase;\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv style=\"font-size: 14px;\"\u003e\n\u003cp style=\"margin: 0 0 4px;\"\u003e\u003cstrong\u003eWhat does the output voltage mean?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 16px; color: #555;\"\u003e0-2.5 V corresponds to 0-2500 µmol\/m²·s. Multiply the voltage by 1000 to get the PAR value.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 4px;\"\u003e\u003cstrong\u003eWhat power supply does it need?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 16px; color: #555;\"\u003eA 5-24 V DC supply.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 4px;\"\u003e\u003cstrong\u003eDo I need to calibrate it?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 16px; color: #555;\"\u003eNo. Each sensor is calibrated before leaving the factory, and users do not need to calibrate it again.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 4px;\"\u003e\u003cstrong\u003eWhich wavelengths does it measure?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 16px; color: #555;\"\u003eThe 400-700 nm spectral range.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 4px;\"\u003e\u003cstrong\u003eHow long is the cable and how much does the sensor weigh?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 16px; color: #555;\"\u003eThe cable is 2 meters long and the device weighs 300 g.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 4px;\"\u003e\u003cstrong\u003eWhat should I avoid when installing it?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 16px; color: #555;\"\u003eKeep it away from chemically corrosive environments, high-voltage lines and heat sources, and do not wire it with the power on.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e\n\u003c\/div\u003e","brand":"Seeed Studio","offers":[{"title":"Default Title","offer_id":57649117135172,"sku":"314990734","price":319.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0418\/3749\/4423\/files\/seeed-studio-par-2-5v-par-sensor.webp?v=1793777422","url":"https:\/\/shopiot.eu\/products\/seeed-studio-sensecap-par-sensor-par-2-5v-0-2500-%c2%b5mol-m-s-0-2-5-v-analog-output","provider":"shopioT","version":"1.0","type":"link"}