Short info: eQ-3 Smart Home - Radiator Thermostat - wireless - 868.3 MHz, 869.525 MHz - white Group Integrated Systems & Automation Manufacturers Deutsche Telekom Part No. 40296221 Model eQ-3 Smart Home. No. 40296221 Model eQ-3 Smart Home EAN/UPC 4025125532683 Product Description: eQ-3 Smart Home - Radiator Thermostat Product Type Radiator thermostat Power source Battery Connectivity Wireless Frequency band 868.3 MHz, 869.525 MHz Color White Dimensions (width x depth x height) 5.8 cm x 7.1 cm x 9.7 cm Detailed specifications General Product Type Radiator thermostat Power source Battery Connection technology Wireless Max. Range (outdoor) 300 m Frequency band 868.3 MHz, 869.525 MHz Miscellaneous Color White Battery required 2 x AA type Marking IP20 Dimensions and weight Width 5.8 cm Depth 7.1 cm Height 9.7 cm Ambient conditions Min. operating temperature 0 °C Max. operating temperature 55 °C. Operating temperature 55 °C.