Question about Meross Smart Wi-Fi Thermostat

Hello, unfortunately this is not possible. Reason: Smart Wifi needs a sensor that measures the floor temperature in the floor.

Hello, I'd like to replace my old thermostat but I only have 3 wires (neutral, phase and the one that goes to the Evenes electrothermal servomotor on my heat pump). Do you think I can install this model? is the board sensor compulsory? because I don't have a channel in the wall to go under my parquet floor.... thank you

I have replaced various thermostats from electric underfloor heating systems with it (a Feller 4250 will also be replaced soon), floor temperature sensors are optional, the thermostat also works without them.