The pyranometer function based on thermoelectric principle. The sensing element made of plated thermopiles with multi contact windings. Its black coated surface absorbs the light energy effectively to accurately measure the solar radiation flux density. The spectral range is between 300 to 3200 nm.

Specification
Range: 0 to 2000 W/m
Cosine Correction: 7% (Solar elevation angle = 10)
Output: RS485, 4 ~ 20mA
Supply: 24VDC