OHSP-350UV UV spectral irradiance meter, use a UV CCD and UV processing optical path.Used to measure relative the spectral power distribution , UVA (315 nm -400 nm), UVB (280 nm-315 nm),UVC (230 nm-280 nm) of UV light source. It is widely used inUV light source, disinfection, sterilization, light therapy, Photolithography, Photosolidification, Breeding, Plant Cultivation and Evaluation of Solar UV Index..etc