Strong functions Age group (description) Adults Included components, thermometer and hygrometer Unit quantity: 1.0 units Power supply via the main battery【Strong radio signal】 The hygrometer thermometer is connected to a radio transmitter to ensure strong radio signal penetration (frequency 433MHz). The thermometer has a long transmission range (30-100m/98-328ft) in open areas and can receive signals quickly and rapidly within the transmission range. 【High precision and fast updating】Large LCD screen, simple and clear display. Indoor temperature (0-60°C to 32-140°F)/outdoor temperature (-40°C-60°C / -40°F-140°F), humidity (10%-99%), accuracy up to ± 1°C / ± 5%. The data is automatically updated every 60 seconds (about 30 minutes until the sensor stabilizes). 【Multiple installation options】With the curved bracket and hanging holes, you can put it on the table or hang it on the wall for convenient and stylish installation. Provides accurate readings from any room in the kitchen, garden,