Usually yes. The question refers to direct electrical heating, where temperature is measured and regulated with the help of our sensor. With underfloor waterborne heating the regulation is done with room/radiator thermostats as before. One temperature is also then brought to your home, but only to indicate to you the state of your home.
There Direct measures temperature usually in one reference point, first because sensors in each room would significantly increase hardware price. Second, they are usually simply not needed. For U- or L-shaped houses or those with more than one floor, we of course install additional sensors. Each will increase the HW price with some tens of euros.
We made experiments early on with our customers, and noticed that people usually keep their interior doors open. Quite satisfactory temperature control can then be reached with one or few reference temperature points.
In other words, the system operates quite well with the number of sensors we install to you. But of course you can add more, if you consider it useful. Expanding the system with sensors is carried out by simple configuration, and does not require any system modifications. The number of sensors is limited only by how different parts of the building can be individually controlled from the electrical center. (See another question “What is a temperature zone?”). Our software limit of 256 sensors should be enough 😀