Item description Description The brennenstuhl®Connect Zigbee radiator thermostat impresses with its quality and safety in all areas, saving energy while increasing comfort. Now you can heat smartly: control the room temperature worldwide with our free brennenstuhl®Connect app via individual programming of heating times at temperature values from 5-30°C. This way, you can precisely adjust the heating phases in individual rooms to your needs and, thanks to intelligent heating control, save up to 30% on heating costs. Thanks to the "window open" function, the Smart Home thermostat automatically lowers the temperature. It not only provides your personal comfort temperature but also impresses with the following features: Automatic control (via app) or classic manual control possible. The Brennenstuhl Zigbee Gateway is required to set and control the radiator thermostat. Query current/set temperature with colour LCD screen Battery life: approx. 1 year incl. battery 2 x 1.5 AA Mignon Technical data Height: 5.50 cm Length: 9.50 cm Weight: 0.21 kg Width: 5.50 cm Battery technology: Alkaline Voltage: 1.50 V Number of cells: 2 Battery type: Mignon AA LR6 Show more