The external temperature sensor for electrical thermostats from MCO must be used in combination with the MCO thermostat. The sensor can only be used to prevent overheating.
For the overheating protection the sensor is located near the floor to overwatch the temperature of the floor. The temperature data of the external sensor will not be shown on the display nor transmitted over Z-Wave. The values of the external sensor are only used for internal process of the overheat protection function.