1. Can measure current illuminance and temperature, measure difference value, maximum and minimum.
2. Switch between lighting and temperature units and the measurement range is (0-200000) lx.
3. With backlight and data storage, automatic switching of movement functions.
4. With auto power off, automatic and manual data storage functions.
5. The shell is made of ABS material, wear-resistant and , and not easy to damage.

Specification:
Item Type: Meter
Material: ABS
Model: WT81B ( version)
Measuring range: 0Lx~200,000Lx
Temperature measurement range: -9.9~49.9?
Accuracy: ±3% rdg±f.s.(10,000Lx).
Operating temperature and humidity: 0?~40?, 10%RH~90%RH.
Storage temperature and humidity: -20?~50?, 10%RH~90%RH.
Temperature accuracy: ±1.0?
LCD screen refresh: 2 times/second
Power supply: 3 x 1.5V AAA battery (battery not included)

Package list:
1 x Luxmeter (Battery not included)
1 x Instructions