Digital humidity&temperature meter

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 With 2pcs R03 AAA batteries Packed by color box