Use different temp sensor on Danfoss Thermostat

Is it possible to use a different temperature sensor on a Danfoss Thermostat? My radiator is enclosed in a box, so the reading from the thermostat itself is “wrong”, since it will always be higher than the room itself.

I was wondering if its possible to use a other sensor as the “target”, e.g. a Aeotec Multisensor 6 in the room.