Features: 1With Large Screen: The thermometer has a large screen display the font size is large and clear the temperature and humidity are clear at a glance. 2High Accuracy: Accurately sense subtle changes in temperature and humidity and quickly collect data to improve measurement accuracy. 3Premium ABS: The digital hygrometer is made of ABS resin material with high strength good toughness and durability. 4Induction Holes: Thermistor corrosion resistance induction holes on both sides more accurate data induction holes on the upper and lower sides of the back making the air wider. 5Alarm Clock Function: Extensive contact with the internal sensor sheet the sensing is more sensitive the data is more accurate there is an alarm clock function and it is easy to say goodbye to the bed. Specification: Item Type: Digital HygrometerMaterial: ABSGross Weight: 102g/3.6ozTemperature Measurement Range: -10 -50 Temperature Measurement Accuracy: 1.0 Humidity Measurement Range: 10 percents RH to 99 percents RHHumidity Measurement Accuracy: 5 percents RHBattery: 1 x triple Abattery included Package List: 1 xDigital Hygrometer1 xBattery