Wide measuring range, the measuring range is 1 to 200,000 lx, Lx or FC unit switchable. Maximum and minimum reading hold function. Compact size and lightweight, you can carry it easily. Luminometer 3 1/2 digits LCD display, display measurement data, clear observation, convenient and intuitive. Light Meter Separate design of measuring head and display meter, suitable for measuring work in complex environment. Widely used for monitoring light strength in homes, laboratories, offices, schools, indoor farming, etc. Specification: Item Type: Luminometer Material: Plastic Measurement Unit: Lx/FC Unit Display Resolution: 0.1Lx/0.01FC Sampling Rate: 2.0 times/s Repeat Test: 2% Temperature Characteristics : 0.1%C Photosensitive film: photodiode with filter lens Power supply: 2 AAA batteries (not included) Package list: 1 x Luminometer (battery not included) 1 x Instruction Manual