- Ambient temperature:-20℃~60℃（-4℉~140℉
- Ambient humidity:0~99%RH
- Web bulb temperature:-20℃~60℃（-4℉~140℉
- Dew point temperature: -50~60℃ (-58℉~140℉)
- Automatic shutdown without operation for 30 minutes
- Backlight function
- MAX/MIN function
- Battery: 2x1.5V AAA battery Packed
