After having installed the Comfort Control electronic controls via the dedicated CALEFFI CODE^® app, proceed to install the Sensor PRO temperature sensor with boiler contact. In this case, the Sensor PRO is used both as a boiler contact and as an ambient temperature sensor, and must therefore be installed in the zone where you wish to control the ambient temperature. Set up the Sensor PRO to manage the zones you want it to manage by using the BOILER SETTINGS section of the app. The zones linked to this contact will have control over switching the Sensor PRO contact ON/OFF. The zone where the Sensor PRO is installed is already linked to the sensor by default.