Function Wireless transmission of outdoor temperature and humidity via up to 3 transmitters Indication of indoor temperature and humidity Max.-min.-function Weather forecast, atmospheric pressure trend Radio-controlled clock with date, day of the week, 2 alarm times and snooze function Moon phase Backlight Product information for download: Technical data Delivery contents Base station, thermo-hygrometer, instruction manual Measuring range temperature outdoor -40...+60°C (-40...+140°F) Measuring range humidity 20...99% Maximum range 75 m Maximum amount of transmitters 3 Sender im Lieferumfang 30.3196 Transmission frequency 868 MHz Measuring range temperature indoor -10...+60°C (+14...+140°F) Clock Radio-controlled clock Material Plastic Assembling Wall mounting or free-standing Power consumption Batteries Batteries 3 x AA 1.5 V (base station), 2 x AA 1.5 V (transmitter) Batteries included No Dimensions (L) 100 x (B) 34 (70) x (H) 168 mm Weight 237 g