Features: _x000D_The luxmeter is designed according to health and measurement requirement of industrial safety. _x000D_Maximum value measurement, minimum value measurement and normal measurement are switchable by pressing a button. _x000D_Large display for easy and clear reading, and supports back light function. _x000D_Portable luxmeter is convenient to use, with high precision and fast response. _x000D__x000D_It can be widely used in lamp Industry, offices, families, warehouses, schools, road lamp construction and laboratories, etc. _x000D__x000D__x000D_Specifications: _x000D_Sampling speed: 0.5 seconds _x000D_Range: 0~2000X100LUX _x000D_Degree of accuracy: (10000LUX),(4%rdg+10dtgs); _x000D_(10000LUX),(8%rdg+10dtgs); _x000D_Sensor type: Silicon photocell _x000D_Resolution ratio: 0.1(200); 1(200~9999) _x000D_10(10000~99999); 100(100000) _x000D_Automatic power off: About 16 minutes (no key operation) _x000D_Energy provision: A 9V battery(NOT included) _x000D_Energy life: about 50 hours (alkaline battery); _x000D_Operation temperature: 0~50 _x000D_Operation humidity: 10%~80%RH _x000D_Storage temperature: -10~60 _x000D_Storage humidity: 10%~75%RH _x000D_Size: 21.3*5.5cm/8.4*2.2in _x000D_Weight: 140g(approx.) _x000D__x000D__x000D_Package Includes: _x000D_1 x Luxmeter (battery is NOT included) 1The luxmeter is designed according to health and measurement requirement of industrial safety. 2Maximum value measurement, minimum value measurement and normal measurement are switchable by pressing a button. 3Large display for easy and clear reading, and supports back light function. 4Portable luxmeter is convenient to use, with high precision and fast response. 5It can be widely used in lamp Industry, offices, families, warehouses, schools, road lamp construction and laboratories, etc.