Overture™ Smart Wall Controls with built in sensors are connected to ventilation fans in rooms such as the kitchen, bathroom, and laundry room in the same way you would connect a standard wall switch. When indoor air quality deteriorates, the Wall Control will automatically turn on the connected ventilation fan or range hood until air quality is improved. The Wall Control also offers the functionality of a standard wall control, meaning you can turn on and off your ventilation fan at will.