Function: Display: 3 1/2 digits 18mm (0.7 inch) LCD Measuring Range: 0~50,000Lux. 3 Ranges: 2000, 20000, 50000 Sampling Time: 0.4second Over-input: indication of “1” Range(Lux)/ Resolution (Lux)/ Accuracy: 0~1999/1/±5%+2d 2000~19999/10/±5%+2d 20000~50000/100/±5%+2d Operating Temperature: 0 ~ 50 °C (32 ~ 122 °F) Operating Humidity: Less than 80 % R.H. Power: 1*9V battery (included) Sensor Dimensions: 100mm * 60mm * 28mm. Body Dimensions: 118mm * 70mm * 29mm. Weight: 143g (sensor + body) Package includes: 1* Digital Light Meter 1* 9V battery 1* User manual 型号 : 550021 ; ** : 欣宝 ; 类型 : 光照度计 ; 加工定制 : 否 ;