The Davis 6450 Solar Radiation Sensor is used to measure solar radiation and solar energy. 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 heating, allows convection cooling of the sensor, and prevents the trapping of water or dust. Solar radiation data is required (along with an anemometer and a temperature/humidity sensor) to enable the Vantage Pro2 weather station to report evapotranspiration and THSW Index. Requires the Davis 6673 Sensor Mounting Shelf.
*** Note: The Vantage Pro2 “Plus” models found on our main Davis Vantage Pro2 page include this component as well as the Davis 6490 UV Sensor. If you’re considering these components and haven’t yet purchased your station, you can save money by purchasing the Plus model instead.