1. Professional, high quality UV meter 2. Narrowband spectrum 248nm~262nm, 254nm peak wavelength 3. Large-scale integrated circuits ensure high precision and high stability 4. UV probe consists of visible light window, narrow band filter and GaAs sensor 5. Aluminum alloy probe enclosure with fixing screw holes for easy installation of the probe in a suitable position for test 6. Wide test range: 1uW/cm ~39.99nW/cm Application: medical, household, sewage treatment, UV sterilization, anti-virus