Function For triple temperature control: internal sensor for monitoring the room temperature at the location Temperature transmitter for monitoring the outdoor or indoor temperature Transmitter with waterproof sensor cable, ideal for refrigerator, freezer, aquarium, pool and pond Expandable up to 8 transmitters Maximum and minimum values Temperature alarm Product information for download: Technical data Delivery contents Base station, temperature transmitter, temperature transmitter (with cable), instruction manual Measuring range temperature outdoor -40…+60°C (-40...+140 °F) Maximum range 100 m Maximum amount of transmitters 8 Sender im Lieferumfang 30.3228.02 (T-transmitter), 30.3229.02 (T-cable-transmitter) Transmission frequency 433 MHz Measuring range temperature indoor 0...+60°C (+32... +140°F) Material Plastic Assembling Wall mounting or free-standing Power consumption Batteries Batteries 4 x AAA 1.5 V (base station), 2 x AAA 1.5 V (per transmitter) Batteries included No Dimensions (L) 116 x (B) 24 (64) x (H) 126 mm Weight 144 g