The temperature input captures temperatures using a temperature sensor and sends this information to the convenient electrical installation. Simple control of, for example, a conservatory can also be carried out. The device is installed in a switch, junction, or installation box. It is powered by a button cell battery, allowing for easy and flexible placement anywhere. Note: For accurate measurement and display of values using a reference measuring device, record the deviation and set the "offset" in the MRF. Battery included. Delivery does not include a temperature sensor.