Features:This digital humidity thermometer and wet-bulb temperature design combine the functions of humidity meter, temperature meter, wet-bulb temperature and dew point temperatureIdeal humidity and thermometer instruments for laboratory, industrial, engineer and professional applicationsSmall appearance, easy to use, a white backlight LCD screen, can be used in the dark environmentHumidity and thermometer for use with humidity/ semiconductor sensorsHigh humidity accuracy and temperature accuracyDouble display temperature and humidity; Resolution of 0.1% rh, 0.1 ° C/0.1℉.Fast response time, maximum and minimum value measurementData hold function, showing temperature and humidity at the same timeAutomatic shutdown function and disable automatic shutdown function are availableSpecification:Model: HT-86Dew point temperature: -50℃~60℃(-58℉~140℉)Wet bulb temperature: -20℃~60℃(-4℉~140℉)Resolution: 0.1%RH, 0.1℃/0.1℉Humidity accuracy: ±3%RH(within 25℃, 10% ~ 90% RH), ±4.5%RH(<10% or >90%RH)(other)Temperature accuracy: ±0.5℃/±0.9℉(10~55℃), ±1.5℃/±3℉(other)Response time RH: 10S（90%25℃）Operating environment: 0 ~40℃(32~104℉), < 80% RH non-condensingStorage temperature: - 10 ~ 60℃(14~140℉), < 80% RH non-condensing.Color: yellowBattery: 9V battery (NOT included)Size: 17.5*5cm/6.9*2inWeight: Approx. 176g/6.2ozPackage list:1 x Digital Humidity & Temperature Meter (Battery NOT included).