【HIGH ACCURACY】UT383BT professional digital illuminance light meter tester can effectively measures light intensity, and display results in units of Lux or FC. Lluminance measurement range: 0~199,900Lux / 0~18,500Fc, high accuracy of ±(4%+8), sampling time is 0.5s. | 【BACKLIGHT FUNCTION】 Large 4 digital LCD screen with backlight, the max display is 9999. With low battery indication function, and light meter will automatically shut down after 5 minutes to save electricity when it is not in operation. | 【HUMANIZATION DESIGN】 This digital illuminance meter is ergonomically designed, comfortable to the touch, small and light, and easy to carry. It can withstand the impact of landing from 1 meter height. Supports overload indication, Max/Min, data hold. | 【CONVINIENCE TO USE】 The lux meter can breeze through data recording, export, storage and analysis. Measurement data is transfered through Bluetooth to iENV App. Easy download on IOS/Android APP. | 【WIDE APPLICATION】The Luxmeter is widely used in lightening enterprise, agriculture and animal husbandry, mining enterprise, laboratory, office, household, street lights construction, camera & studios, photography, etc.