The RainWise solar irradiance sensor is an excellent add-on to the MK-III weather station. This small, precise sensor is hand tested and calibrated at our factory.
RainWise Solar Irradiance Sensor
Range: 0 to 1750 W/m2
Accuracy: +/-5%
Cosine Response 45°: +/-1%
Cosine Response 75°: +/-5%
Operational Temperature: -25° to 55°C (-13° to 131°F) Resolution: 1 W/m2