Comfort Level Indicator: The home indoor thermometer has 3 types of smile icons that simultaneously display different temperature and humidity levels, it allows you to keep an eye on your health and comfort at home: wet, comfort, dry at a glance Accurate and fast response: The indoor air thermometer allows air flow to flow through the ventilation holes and gives you fast and accurate data over time, it measures the temperature range from -50 to 70 degrees Celsius and humidity ranges from 10 to 99 percent relative humidity, so you can adjust the heating or humidifier base on temperature and humidity readings Easy to read: The large clear digits of the desktop indoor hygrometer are easy to read on the LCD screen; In addition, it has a stand, magnetic stand and a mounting slot on the back, allowing you to place it virtually anywhere. You can switch between Celsius or Fahrenheit display at will; the home indoor thermometer can make your indoor air temperature or humidity data clear at a glance Low energy consumption: Thanks to the low energy consumption display, the room termometer can operate for at least one and a half years; thanks to the combination of the humidity display and the air comfort indicator, you are simultaneously informed of the humidity level and the temperature of the room Quick Refresh: The digital indoor thermometer refreshes every 10 seconds to keep you up to date with the latest changes in temperature and humidity readings. ThermoPro is now TempPro! TempPro will maintain same mission, same operation backbone and same products as ThermoPro; You may receive either a ThermoPro or TempPro branded product