This temperature and humidity meter can be widely used for laboratory, industrial, engineering testing and other applications; and used exclusively to measure humidity, air temperature, wet bulb temperature and dew point temperature.Features: brand new and high qualityMeasure temperature and humidity, wet lamp and dew point temperature.Digital humidity and temperature meter used for a wide range of applications, such as industry, agriculture, meteorology, daily life, construction engineer, cellar, engine room and data storage.Max / min / data retention functions, high accuracy and quick response.Backlit LCD display for easy operation in the dark.Low battery indication, automatic shutdown, energy saving.Specification:Material: PlasticColor: Black+GreenRelative humidity:Range: 0-99%RHResolution: 0.1%Accuracy: 3.0%RH(20%-80%), 4.0%RH(80%-99%)Room temperature:Range: -20-60/-4-140Resolution: 0.1/0.2Accuracy: 1(0-45), 1.5(-20-0, 45-60)2(32-113), 3(-4-32, 113-140)Dew point temperature:Range: -50-60/-58-140Resolution: 0.1/0.2Accuracy: 1(0-45), 1.5(-50-0, 50-60)2(32-113), 3(-58-32, 122-140)Wet bulb temperature:Range: -20-60/-4-140Resolution: 0.1/0.2Accuracy: 1(0-45), 1.5(-20-0, 45-60)2(32-113), 3(-4-32, 113-140)Data update: 400msPower supply: 1 x 9V 6F22 battery(Not included)Auto power-off: 10 minutes no operationSize: app. 192x53.8x35mm(7.56x2.12x1.37in)Quantity: 1 pcNote:Transition: 1cm=10mm=0.39inchWith retail package.Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank youPackage includes:1 x Digital Thermo-hygrometer(other accessories demo in the picture is not included.)