The digital lux meter is a professional instrument for measuring illumination and brightness, which can be used in light intensity measurement engineering, quality control, illness prevention and treatment and measurement of light intensity in all kinds of environments such as factories, schools, offices, transportation routes, families, etc. Features: WIDE APPLICATIONSThis light meter is equipped with high accuracy silicon diode photosensitive components, which can accurately measure the light and brightness accurately. Ideal to use at home, garden, aquarium, plants, school, office, state, LED lights, buildings, warehouses, production lies, farms, aquaculture, stage, stadiums, indoor and outdoor. MULTIFUNCTIONThe lux meter with an easy-to-read backlight, max/min, data hold, low battery indication, lux/fc switch, auto power off. 4-range settings: 0/200/2,000/20,000/200,000 Lux. HANDHELDYou can bring the digital Illuminance / light meter wherever you need to. Fits easily into a work bag or large pocket and barely adds any weight. It's the ultimate in light-metering convenience! EASY TO USEReplace the battery easily with the no screw design; Sensor cover provides enhanced protection for the light sensor. The outer casing is made of high-density polyethylene, which is non-slip and anti-drop. USE FRIENDLYThe light intensity meter sensor on the light meter top with a tethered, detachable cap, preventing scratches and other damage. Specifications: Material: ABS Main Parts of Photometer Head: Photodiode+cosines corrector+correction filter illuminance Measuring Range: Total Measuring Range: 0~200,000 Lux into four ranges X1: 0~199.9 Lux X10: 200~1999.9 Lux X100: 2000~19999.9 Lux X1000: 20000~200000 Lux illuminance Accuracy: ±3%rdg (below 10000 Lux) ±4%rdg (below 10000 Lux) Unit of illuminance: Lux / FC Operating Temperature/Humidity: 0~40, 10~90%RH Storage Temperature/Humidity: -10~50, 10~90%RH LCD Screen Update: 2 times/s Power Source: 3 * 1.5V AAA batteries (Not included) Battery Life: About 200 hours (consecutive working time without turning on backlight) Item Size: 170 * 47 * 26mm / 6.69 * 1.85 * 1.02in Item Weight: 113g / 3.98oz Package Weight: 150g / 5.29oz Package Size: 18.5 * 6.8 * 4cm / 7.28 * 2.67 * 1.57in Package List: 1 * Digital Lux Meter 1 * User Manual (English)