Feature:1. MEASUREMENT RANGE: Light meter has a large range measurement range, with a maximum measurement capacity of 200000 LX and a resolution 0.1LX.2. FINE WORKMANSHIP: High accuracy probe, using digital photodiodes and filter lenses, with an incidence angle of 120 .3. ALARM: The upper and lower limits can be set. When the upper and lower limits are exceeded, the screen will emit a red background light.4. EASY CARRYING: With a small and compact size, luxmeter is easy to carry to different scenes use.5. WIDE APPLICATION: The application of illuminometer is very extensive, including applications in our daily life, such as factories, warehouses, schools, offices, homes, street light construction, laboratories, and so on.Specification:Item Type: Digital IlluminometerMode: TA630AMaterial: ABSMeasurement Method: IntegratedMeasurement Range: 0.1 to 200000LX, 0.01 to 20000FCMeasurement Gear: 200, 2000, 20000, 200000 LX, 20, 200, 2000, 20000FCAccuracy: (4%+10dgts); Calibrate with a standard flat lamp with a color temperature of 2856K;Resolution: LX less than 200:0.1; LX greater than or equal to 200:1FC less than 20:0.01; 20 less than or equal to FC less than 200: 0.1; FC greater than or equal to 200:1Illumination Display: 4 digit display, up to 1999Sensor: Digital sensor with filter lensesSampling Rate: 2 times/secondIncident Angle: 120 degreesRepeated Testing: 2%Spectral Range: 400 to 700nmAutomatic Shutdown: 15 minutes (can be manually turned off)Operating Environment: -10 to 50 , maximum relative humidity of 80%; Indoor altitude less than Approx. 2000m / 6561.7ftStorage Environment: -10 to 50 , maximum 70% relative humidity (with battery removed)Battery: 1.5V AAA battery x 2 (without battery).Package List:1 x Digital Illuminometer1 x Manual