User-friendly Split Type Design: with compact size and light weight design, the measurement sensor and main body of the lux meter are detachable, and connected with a retractable spring, you can hold and operate it very conveniently. Wide Measurement Range: with wide measuring range up to 200000LUX, 0.1Lux/0.1FC high display resolution, Lux or FC unit switchable. Light and Sound Alarm: the upper and lower limit alarm values can be set, and the audible and visual alarm prompt will be given once the range is exceeded. Data Hold Function: for conveniently checking the tested data and writing down the results. Clearly VA Color Display Screen: LCD display with backlight, easy for operation and reading the value.