Accurate Measurement: The Portable UV Meter LS123 is a reliable instrument designed to measure the ultraviolet radiation power intensity, radiance density, and rejection rate of materials Versatile Application: This portable UV power meter is suitable for various applications, including testing the ultraviolet rejection peormance of explosion-proof films, automotive insulation films, solar films, and insulating s Fast and Convenient: With its fast measurement speed, the LS123 UV power meter offers efficient testing and automatically converts the measured data into rejection rates Wide Spectrum Covera: The UV lamp intensity meter covers a wide ran of wavelengths from 260nm to 380nm, with a peak sensitivity at 365nm Compact and Easy to Use: Measuring only 125mm * 69mm * 24.5mm (L*W*H), the Portable UV Meter LS123 is lightweight and portable