About this item: Item Name: Total Digital Humidity& Temperature Meter TETHT01 Ambient temperature:-20℃~60℃（-4℉~140℉） Ambient humidity:0~100% Web bulb temperature:-20℃~60℃（-4℉~140℉） Dew point temperature:-20℃~60℃（-4℉~140℉） With backlight function With lower battery indication function Packed by color box
