Indoor Outdoor Thermometer Hygrometer, Digital Temperature Humidity Monitor with LCD Backlight, for Home, Office

• The digital thermometer and hygrometer adopts a blue backlight and 4.6'' large display screen. It can also display the temperature and humidity of the main unit and 3 transmitters on the same screen. • The host is powered by a 3 * AA battery or USB cable. When using battery power, there is only one type of backlight. When using a USB cable power supply, there is a choice of half light or full light. • Humidity temperature gauge features icons to indicate dry/comfortable/wet air condition quickly. And it provided temperature and humidity trend display, and support to display 24H and all time period selection. • Indoor temperature range: -20℃~70℃, outdoor temperature range: -50℃~70℃. Indoor and outdoor humidity range: 10%~99%. Receiving distance: 100m without obstacle. • Wall thermometer features tabletop, wall-mountable and magnet-mountable design, convenient mounting feature for every type of kitchen, greenhouse, guitar room, office and cellar.