HT618 Digital Psychrometer Thermometer Hygrometer with Backlight Temperature and
· Model No: HT618. Specification of HT618. · Dew point Temperature: -20℃~60℃(-4.0℉~140℉). · Web bulb temperature: -20℃~60℃(-4.0℉~140℉). · Dew point Temperature: -50℃~60℃(-58.0℉~140℉). Ambient Temperature.