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Digital LUX meter GM1020  measure range 0~200，000Lux

*Measuring range:0Lux~200，000Lux

*Accuracy:

±3% rdg: (below 10，000Lux)

±4%rdg:(above 10，000Lux)
*Digital Updates:Twice per Second

*Photometric sensor:Silicon diode

*Battery life:10 hours (continuous operation with a USB connection)

*Operating temperature and humidity:0℃~ 40℃， 10%RH ~ 90%RH

*Storage temperature and humidity:-20℃~ 50℃， 10%RH ~ 90%RH

*Power:2 AAA battery(battery not included)

*Unit size:150*55*30mm

*Net weight:150.4g

*Backlight function

*Maximum and minimum measurements

*Low battery indication

Packing:with retail packing.

Note:This unit doesn't include batteries. Because the international air shipping forbid us to ship liquid， powder and batteries， so we can not put them in the package.

Hope you can understand & buy the batteries in your local store or supermarket. Thanks for your support!