Function Wireless transmission of outdoor temperature via up to 3 transmitters Indication of indoor temperature and humidity Max.-min.-function Weather forecast, atmospheric pressure trend Radio-controlled clock with date and alarm Backlight Product information for download: Technical data Delivery contents Base station, temperature transmitter, instruction manual Measuring range temperature outdoor -40…+65°C (-40…+149°F) Maximum range 100 m Maximum amount of transmitters 3 Sender im Lieferumfang 30.3157 Transmission frequency 433 MHz Measuring range temperature indoor -10…+80°C (+14…+176°F) Measuring range humidity indoor 20…99% Clock Radio-controlled clock Material Plastic Assembling Wall mounting or free-standing Power consumption Batteries Batteries 2 x AA 1.5 V (base station), 2 x AAA 1.5 V (transmitter) Batteries included No Dimensions (L) 81 x (B) 28 (69) x (H) 143 mm Weight 140 g