Features: .Maximum and minimum measurements .Automatic measurement function(AUTO).Lux/Fc Unit selection function .Auto power off function .LCD display screen .Backlight function.Low battery indication .Data rise and fall time is short .Portable and simple to operateSpecifications: .Brand Model: BENETECH GM1010 .Color: As Pictures Shown Size: 166.2*35.5*52.6mm.Measuringrange: 0 Lux-200，000 Lux/0 Fc-185，806 Fc .Accuracy: ¡À3%rdg¡À0.5%f.s.(<10，000Lux);¡À4% rdg¡À10%dgts.(>10，000Lux).Digital Updates:2 times / s.Photometric sensor:Silicon diode.Battery life:Not less than 60 hours .Operating temperature and humidity:0¡æ¡« 40¡æ，10%RH ¡« 90%RH .Storage temperature and humidity:-20¡æ¡« 50¡æ，10%RH ¡« 90%RH .Power:1*16F22 9Vbattery(Included) .Weight:196g .Package Dimensions:191*133*50mm .Packing:Blister CardPackage Content: .1x BENETECH GM1010 LCD Digital Lux Meter .1 x 16F22 9V battery .1 x English User Manual