Function For the monitoring of indoor and outdoor climate With internal sensor and 3 wireless radio-controlled transmitters (max. 100m) for monitoring temperature and humidity in up to 4 rooms Max.-min.-function Comfort zone Radio-controlled clock with date Individual labelling of the transmitter sites Connection with WeatherHub gateway possible Registered TFA design TFA Quality mark: Swiss Precision SensorIT Instant TransmissionWeatherHUB 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 1 … 99 % Radio-controlled clock defeatable Yes Maximum range 100 m Maximum amount of transmitters 3 Sender im Lieferumfang 30.3180.IT 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 (per transmitter) Batteries included No Dimensions (L) 128 x (B) 32 (58) x (H) 128 mm Weight 217 g