Function For the monitoring of indoor and outdoor climate, with internal sensor and 3 wireless radio-controlled transmitters for monitoring temperature and humidity in up to 4 rooms Max.-min.-function, trend indicators Weather forecast with atmospheric pressure Radio-controlled clock with date, day of the week (7 languages) and alarm Registered TFA design Product information for download: Technical data Delivery contents Base station, 3 x thermo-hygro transmitters, instruction manual Measuring range temperature outdoor -40…+60°C (-40…+140°F) Measuring range humidity outdoor 1 … 99 % Maximum range 60 m Maximum amount of transmitters 3 Sender im Lieferumfang 30.3215.02 Transmission frequency 433 MHz Measuring range temperature indoor -10…+60°C (14…+140 °F) Measuring range humidity indoor 20 … 95% Material Plastic Assembling Wall mounting or free-standing Power consumption Batteries Batteries 2 x AAA 1.5 V (base station), 2 x AAA 1.5 V (per transmitter) Batteries included No Dimensions (L) 131 x (B) 26 (63) x (H) 102 (98) mm Weight 154 g