The balcony door is open and the heating or cooling is on? - Considerable amounts of energy can be saved very easily here! The temperature controller KNX eTR 101-BA2 has inputs for window contacts that report to the KNX system when ventilation is in progress. Heating or cooling is then switched off during this time.
But the two inputs are not only suitable for window contacts; mechanical push-buttons or an external temperature sensor T-NTC can also be connected.
KNX eTR 101-BA2 measures the room temperature, calculates average values if required and regulates the room climate accordingly. The target temperature can be easily adjusted via the large plus/minus touch surfaces.