When you control your heating system (boiler) with tado° you can optionally add Smart Radiator Thermostats to your system to control rooms individually. When controlling multiple rooms individually with tado°, each room can issue a call for heat to the boiler through the Smart Thermostat or Wireless Temperature Sensor.
If you install Smart Radiator Thermostats, it is recommended to also equip the radiators in the room in which the Smart Thermostat or Wireless Temperature Sensor is located with Smart Radiator Thermostats which will turn down the heat supply to the room when the call for heat for that room is satisfied while another room might still request heat.