The Communicating Thermostats contain an SPST auxiliary switch that can be used to control lighting or auxiliary reheat. Three additional inputs are also provided for monitoring and / or various advanced functions.

The thermostats are also compatible with the occupancy sensor cover accessories. Thermostats equipped with an occupancy sensor cover provide advanced active occupancy logic, which will automatically switch occupancy levels from Occupied to Unoccupied as required by local activity being present or not. This advanced occupancy functionality provides advantageous energy savings during occupied hours without sacrificing occupant comfort.