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, 0.1/0.1Humidity 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: 10S90%25Operating 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).