Feature:1. APP Monitor: This smart thermometer supports remote monitor on the phone APP, remotely monitor the temperature and humidity.2. Scene Customizable: This remote temperature monitor allows you to customize your scenes for comfortable home, when the temperature rises to a certain temperaturethe, air conditioner will be turned on automatically.3. Fahrenheit Celsius Swithcable: This wireless thermometer has a physical switch button on the back, which is convenient for quickly switching temperature units.4. Battery Powered: This wireless thermometer is powered by CR2032 button battery, one battery supports 6 months standby.5. Wide Range: This room thermometer provides minus 10 to 50 temperature detection and 0% to 99%RH humidity detection in high accuracy.Specification:Item Type: Smart ThermometerMaterial: ABSVoltage: DC2.5V to 3VBattery: CR2032 Button Battery 50mAh (Battery Included)Temperature Range: Minus 10 to 50Humidity Range: 0% to 99%RHProduct Size: Approx. 43 x 42.5mm / 1.69 x 1.67in ( Manual Measurement, Slight Error May Exist )Weight: Approx. 32g / 1.13oz.Package List:1 xSmart Thermometer1 x Fixing Tape1 x User Manual