Control the radiators in your home easily via smartphone or tablet and save up to 30% on heating costs! Setting it up takes just minutes: unscrew the existing radiator thermostat, attach the Bluetooth thermostat, connect it to the free app – done! No construction work, no mess, no interference with the heating system, no draining water, and no special tools required. You can even change the thermostat while it’s in operation!

The thermostat is also very suitable for rental apartments, as it can be installed without any permission and removed without a trace.

• Saves up to 30% on heating costs
• Easy installation without draining water and without special tools
• Electronic radiator thermostat with weekly program
• Simple battery operation (AA) - battery life: 2 years (typical)
• Fully customizable heating and lowering times, adjustable temperature profiles, and up to 7 switching times per day
• Vacation and party function: maintain a set temperature for a specific period, overriding the programmed switching cycles; after the time expires, the programmed cycles automatically resume
• Manual temperature adjustment directly at the thermostat is always possible
• Lock function via app can be activated, preventing any changes at the thermostat itself (ideal for public spaces)
• Boost function for quick heating, e.g., just in time for your return home
• Intuitive operation/programming via the free app for iOS/Android "calor BT"
• Up to 5 radiator thermostats can be grouped per room via the app, with a maximum of 10 rooms
• Automatic lowering operation when airing out (window open detection)
• Frost protection, limescale protection, child safety/lock function
• Compatible with valves from all common manufacturers (M30 x 1.5 mm)*

* For example, from Heimeier, Oventrop Type A and Type AV6, Comap D805, and Danfoss RA.