Function Wireless transmission of outdoor temperature via up to 3 transmitters Indication of the indoor temperature and humidity Max. and min. values function with time and date Weather forecast with symbols and weather figure (15 outfit variations) and display of the atmospheric pressure trend Radio-controlled clock with date, alarm and snooze function Sunrise and sunset times and moon phase display Backlight Registered TFA design [*] [*] Product information for download: Technical data Delivery contents Base station, temperature transmitter, batteries, instruction manual Measuring range temperature outdoor -40...+60°C (-40…+140°F) Radio-controlled clock defeatable Yes Maximum range 100 m Maximum amount of transmitters 3 Sender im Lieferumfang 30.3147.IT Transmission frequency 868 MHz Measuring range temperature indoor -10...+60°C (+14…+140°F) Measuring range humidity indoor 20…95% Clock Radio-controlled clock Material Plastic Power consumption Batteries Batteries 2 x AA 1.5 V (Base station), 2 x AA 1.5 V (Transmitter) Batteries included Yes Dimensions (L) 125 x (B) 30 (50) x (H) 94 mm Weight 156 g