Function Wireless transmission of outdoor temperature and humidity via up to 3 transmitters (max. 100 m) Indication of indoor temperature and humidity Max.-min.-function Weather forecast Atmospheric pressure trend Atmospheric pressure with bar graph indication of the last 24 hours Radio-controlled clock with date, time zone ±12 hrs. Registered TFA design TFA Quality mark: Swiss Precision SensorIT Instant Transmission Product information for download: Technical data Delivery contents Base station, thermo-hygro transmitter, batteries, instruction manual Measuring range temperature outdoor -40…+60°C (-40…+140°F) Measuring range humidity outdoor 1...99% Radio-controlled clock defeatable Yes Maximum range 100 m Maximum amount of transmitters 3 Sender im Lieferumfang 30.3144.IT Measuring range temperature indoor -10…+60°C (+14…+140°F) Measuring range humidity indoor 20...95% Clock Radio-controlled clock Assembling Wall mounting or free-standing Batteries 3 x AA 1.5 V (base station), 2 x AA 1.5 V (transmitter) Batteries included Yes Dimensions (L) 102 x (B) 33 (76) x (H) 180 mm Weight 234 g