Features:_x000D__x000D_This luxmeter has large LCD screen that shows light measurement value. _x000D_It supports screen locking function, and maximum/minimum measurement value. _x000D_Automatic ranging and measurement range can be manually switched. _x000D_Automatic power-off function in 15 minutes without operation make it power-saving. _x000D_The instrument will automatically detect battery, and show low battery symbol to remind user replacing battery in time. _x000D_It is widely used for factory, warehouse, school, office, family, street lamp construction, laboratory and so on. _x000D__x000D__x000D_Specifications:_x000D_Model: MT-30_x000D_Measurement Range: 0.1~200,000Lux; 0.01~20,000Fc_x000D_Resolution: 0.1Lux/0.01Fc_x000D_Measurement Accuracy: 4%_x000D_Sampling Frequency: 2 times/sec._x000D_Units: Lux; Fc_x000D_Battery Type: 9V battery (NOT included) _x000D_Size: 14*6*3cm/5.5*2.4*1.2in _x000D_Weight: 130g(approx.) _x000D__x000D__x000D_Package Includes:_x000D__x000D_1 x Luxmeter (battery is NOT included) _x000D_1 x User Guide 1This luxmeter has large LCD screen that shows light measurement value. 2It supports screen locking function, and maximum/minimum measurement value. 3Automatic ranging and measurement range can be manually switched. 4Automatic power-off function in 15 minutes without operation make it power-saving. 5The instrument will automatically detect battery, and show low battery symbol to remind user replacing battery in time.