EUROTRONIC SPIRIT Z-WAVE PLUS

Hi,
is there anyone who have this heat controller in operation and know how to connect it with an external thermometer?
I use this heat controller for a wall heater. The heat controller is located some centimeters above the floor which has an underfloor heating. Therefore the thermometer of the heat controller gets the temperature of the floor with the result of a cold wall heater. I have in the same room a Fibaro windows sensor with an internal thermometer and want to use this thermometer also for the heat controller.
The parameter 8 I have set to 128. But how can I get the temperature of the Fibaro thermometer?