Question about Netatmo Smart thermostat

Caution, this product is a wall thermostat that controls a heater, i.e. it is mounted on the wall where a conventional thermostat would otherwise be mounted (typically floor heaters or boilers). For radiators, you should probably use something like this: Netatmo Smart Radiator Thermostat Starter Pack

Yes, that makes sense. Simply replace the radiator valves with Netatmo valves.