This PAR sensor mainly used to measure solar radiation within 400 to 700 nm wavelength. The silicon photo detector senses the incident light intensity and generate proportional output voltage. Its sensitivity is proportional to the cosine of the incident light direct angle.

Specification
Range: 0 to 2500 *mol/m*s, 0 to 2000 W
Accuracy: 5% rdg
Output: RS485, 4 ~ 20mA
Supply: 24VDC