Electronic Display Wireless Hygrometer Indoor Outdoor Thermometer Humidity Monitor Product selling point Measuring outdoor and indoor temperature and also humidity, Fahrenheit and Celsius change Highest as well as lowest temperature dampness mind performance High awareness button influence for quick operation Comfort indication, heat range and dampness trend indication With backlight, the backlight is easily off following ten seconds with no functionality Specifications Interior temperature range 4 F - 158 F 20 C