Avidsen 100745. Operating frequency: 433 MHz, Outdoor range: 50 m, Type: Wireless. Current consumption: 7 mA, Battery type: 6LR61, Input voltage: 9 V. Dimensions (WxDxH): 65 x 40 x 110 mm, Weight: 87 g. Operating temperature range (T-T): 0 - 40 °C. Colour of product: Grey