Indicator: Hygrometer has and alerts. Display different prompts according to changes in indoor temperature and humidity. It records the highest and lowest humidity and temperature indicators for a 24-hour period.Clear LCD Display: The digital thermometer adopts LCD screen, which is designed with a backlight function, making it easier to read data in dark conditions.Designed with a / switch button, you can switch between Celsius or Fahrenheit at will.Multi-Scenario Use: The digital hygrometer ensures proper temperature and humidity control, can be placed in bedrooms, baby rooms, kitchens, cellars, offices, wine cellars, conservatories and living rooms.Multiple installation methods: The indoor thermometer adopts magnet adsorption, desktop vertical and wall-mounted . You can easily place this hygrometer in different .Measuring range Indoor temperature range: 14F~122 (-10~50)Outdoor temperature range: -40F~158F (-40C~70C)Temperature resolution: 0.1C/F 20%~95%Humidity resolution: 1% humidity rangeTemperature display unit: /F optional (default is F)Wireless range: 328ft/100m depending on availabilityWireless frequency: 433 MHzpower supply:Receiver: Polymer rechargeable battery Capacity: 1800mAhTransmitter: 2 AAA batteries (1.5V) (batteries not included)Material: ABScolour: WhitePackage Contents:1 x Receiver1 x Transmitter1 x USB CableOnly the above package content, other are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.