Features LCD Display: This digital light meter features a large LCD screen that displays light measurements, providing clear and intuitive data that is easy and fast to read. Humanized Design: This MT-30 digital illuminance meter adopts humanized design, automatic shutdown function after 15 minutes of no operation, energy saving and environmental protection; support screen lock function, maximum/minimum measurement value. Easy To Use: The automatic distance measurement and measurement range of the LCD display digital environmental test light meter can be manually switched, which is easy to use. Automatic Detection: This digital light meter will automatically detect the battery and display a low battery symbol to remind the user to replace the battery in time. Wide Range of Applications: This handheld digital illuminance meter is widely used, suitable for factories, warehouses, schools, offices, homes, street lamp construction, laboratories, etc. Specifications: Model: MT-30 Measurement Range: 0.1~200,000Lux; 0.01~20,000Fc Resolution: 0.1Lux/0.01Fc Measurement Accuracy: ±4% Sampling Frequency: 2 times/sec. Units: Lux; Fc Battery Type: 9V battery (NOT included) Size: 14*6*3cm/5.5*2.4*1.2in Weight: 130g(approx.) Package Includes: 1 x Luxmeter (battery is NOT included) 1 x User Guide Package List