Davis Solar Radiation Sensor [6450] Brand_Fortress Marine Anchors Compass features a liquid-damped compass

Compass features a liquid-damped compass card graduated in 5° segments and a large

Steering Type: Hydraulic

Black Plastic with Gasket

Microfiber Towel

Maximum Pull: 1320lbs

Davis Solar Radiation Sensor [6450] Brand_Fortress Marine Anchors Compass features a liquid-damped compassSolar Radiation Sensor For use with Vantage Pro and Vantage Pro2. (Already included with Vantage Pro Plus and Vantage Pro2 Plus.)Measures solar radiation and is required (along with an anemometer and a temperature humidity sensor) if you wish to monitor evapotranspiration. Diffuser element and housing are carefully designed for accurate cosine response. Silicon photo diode provides good match to solar spectrum. Two piece housing minimizes radiation