Features1Using high?accuracy digital temperature and humidity sensor, high accuracy, fast speed and good stability. 2It is suitable for data collection and monitoring of ambient temperature and humidity for indoor and outdoor temperature measurement. 3Equipped with a backlit LCD screen and small size, which is easy to use and can be used in dark environments. 4With maximum and minimum functions. The temperature resolution is 0.1 DegreeC/0.2 DegreeF. 5It is widely used in temperature and humidity measurement in industry, agriculture, meteorology, medical treatment and daily life.SpecificationItem Type: Thermometer HygrometerMaterial: PlasticWeight: Approx. 133g / 4.7ozProduct Size: Approx. 150x52x33mm / 5.9x2.0x1.3in Battery: 6F22 9V battery (battery not included)Humidity Range: 0%~100%RHResolution: 0.1Humidity Range:0%-20%RH Accuracy: 4.5%20%-80%RH Accuracy: 3.0%80%~100%RH Accuracy: 4.5%Temperature Range: -30~70Temperature Range:-30~0 Accuracy: 1.00~70 Accuracy: 0.5-22 DegreeF-320 DegreeF Accuracy: 1.8 DegreeF32 DegreeF-158 DegreeF Accuracy: 0.9 DegreeFTemperature Resolution: 0.1 DegreeC/0.2 DegreeFScope of Application: Widely used in temperature and humidity measurement in industry, agriculture, meteorology, medical treatment and daily life.Package List1 x Thermometer Hygrometer (battery not included) 1 x Manual