specification:
 Display: 3 1/2 digit LCD display that shows the maximum reading 1999
 Measuring range : Lx1010B: 2000. 20000. 50000Lux.
20000Lux profile display of reading required * 10 only for the proper illumination value
50000Lux profile display of readings need * 100 only for the proper illumination value
 Accuracy : ± 4% rdg ± 0.5% fs ( greater than 10000Lux profile accuracy ± 5% ± 10 words) ( color temperature 2856K lamp standard flat correction)
 Repeat the test : ± 2%
 Temperature characteristics : ± 0.1% / ℃
 Sampling Rate : 2.0 times / sec
 photoreceptor : LED attached filter sheet
 Operating temperature and humidity : 0 ℃ ~ 40 ℃ (32 ℉ ~ 104 ℉) 0 ~ 70% Rh
 storage temperature and humidity : -10 ℃ ~ 50 ℃ (14 ℉ ~ 140 ℉) 0 ~ 80% Rh
 Overload Display: Highest digit '1 ' Show
 Power Supply : single 9V battery
 Battery life: about 200 hours of continuous use
 photodetector Size : 100 * 60 * 28 mm
 Meter Size : 118 * 70 * 29mm
 Weight: 200g