{"product_id":"dragino-wss-26","title":"Dragino WSS-26, global radiation sensor 300 to 3000 nm, RS485","description":"\u003cp dir=\"ltr\"\u003eThe Dragino WSS-26 measures total solar radiation (global radiation) in the spectral range of 0.3 to 3 µm, covering nearly the entire solar spectrum from UV through visible to infrared. When oriented downwards, the sensor measures reflected radiation, and with an additional shading ring, diffuse radiation can be determined. A high-precision light-sensitive element under a precision-engineered radiation cover ensures stable measurements, with connectivity provided via RS485 to the Dragino WSC2-L weather station.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eMain features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"ltr\"\u003e\n\n\u003cli\u003eMeasurement of global radiation in W\/m² in the spectral range 300 to 3000 nm, measurement range 0 to 2000 W\/m²\u003c\/li\u003e\n\n\u003cli\u003eFlexible mounting: upward for global radiation, downward for reflected radiation, with a shading ring for diffuse radiation\u003c\/li\u003e\n\n\u003cli\u003eRS485 interface with Modbus command set, operable directly on the WSC2-L main unit (standard baud rate 4800)\u003c\/li\u003e\n\n\u003cli\u003eCalibration of multiple sensors via a Modbus-adjustable scaling factor (K-value)\u003c\/li\u003e\n\n\u003cli\u003eWide supply voltage range of 5 to 24 V DC, operation from -40 °C to +70 °C\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"ltr\"\u003e\n\n\u003cli\u003eSupply voltage: 5 to 24 V DC\u003c\/li\u003e\n\n\u003cli\u003eInterface: RS485\u003c\/li\u003e\n\n\u003cli\u003eStandard baud rate (with WSC2-L): 4800\u003c\/li\u003e\n\n\u003cli\u003eSpectral range: 0.3 to 3 µm (300 to 3000 nm)\u003c\/li\u003e\n\n\u003cli\u003eMeasurement range: 0 to 2000 W\/m²\u003c\/li\u003e\n\n\u003cli\u003eResolution: 0.1 W\/m²\u003c\/li\u003e\n\n\u003cli\u003eAccuracy: ±3 %\u003c\/li\u003e\n\n\u003cli\u003eLong-term stability: ≤ ±2 % per year\u003c\/li\u003e\n\n\u003cli\u003eCosine error: ≤ 7 % at 10° solar elevation\u003c\/li\u003e\n\n\u003cli\u003eTemperature effect: ±2 % (-10 °C to +40 °C)\u003c\/li\u003e\n\n\u003cli\u003ePower consumption: 4 mA at 12 V\u003c\/li\u003e\n\n\u003cli\u003eOperating temperature: -40 °C to +70 °C\u003c\/li\u003e\n\n\u003cli\u003eOperating humidity: 10 to 90 % RH\u003c\/li\u003e\n\n\u003cli\u003eDimensions: 15 × 11 × 6 cm\u003c\/li\u003e\n\n\u003cli\u003eWeight: 346.5 g\u003c\/li\u003e\n\n\u003cli\u003eScope of delivery: 1 × WSS-26\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eApplication areas:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"ltr\"\u003e\n\n\u003cli\u003eAgricultural weather stations based on the Dragino WSC2-L, e.g., as an input variable for calculating evapotranspiration and irrigation planning\u003c\/li\u003e\n\n\u003cli\u003eIrradiance monitoring at photovoltaic systems as a reference for comparison with actual yield\u003c\/li\u003e\n\n\u003cli\u003eAlbedo measurements by combining an upward- and a downward-facing sensor\u003c\/li\u003e\n\n\u003cli\u003eBuilding automation and climate research, e.g., for controlling shading or recording local radiation balances\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eDocuments:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"ltr\"\u003e\n\n\u003cli\u003e\u003ca href=\"https:\/\/wiki.dragino.com\/docs\/Non-Wireless-Sensors\/agriculture-weather-stations\/wss-26-total-solar-radiation-sensor\" target=\"_blank\" rel=\"noopener\"\u003eUser Manual\u003c\/a\u003e\u003c\/li\u003e\n\n\n\u003c\/ul\u003e","brand":"Dragino","offers":[{"title":"Default Title","offer_id":55345641914695,"sku":"WSS-26","price":232.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0761\/6561\/1847\/files\/WSS-26.jpg?v=1791478117","url":"https:\/\/exp-tech.de\/en\/products\/dragino-wss-26","provider":"EXP Tech","version":"1.0","type":"link"}