The General Tools UV513AB Digital UV AB Light Meter is designed to measure ultraviolet light in the range from 280 to 400 nanometers (UV AB). The illumination range of the meter allows users to conduct the most precise quantitative measurements of ultraviolet radiation for radiometry and laboratory requirements, UV-curing in off-set printing, lamp UV intensity & aging, industrial process monitoring, semiconductor fabrication, sunlight UV intensity to prevent skin damage, sterilization and environmental monitoring.