The RF wall sensor is like a thermostat which gives you individual room temperature control (ITC) by instructing the system to continually adjust airflow to maintain your selected temperature. 

There can be huge temperature differences between rooms in your home depending on their orientation. Install an Individual Temperature Control (ITC) sensor and the system will automatically adjust the airflow to maintain your selected temperature.

The wall sensors are useful in those rooms that heat up faster than the rest of the house. They can be installed in as many rooms as you like either at time of installation or later. The Individual Temperature Control sensors ensure you won’t be over air-conditioning rooms, having the added bonus of energy savings.