An apparatus is provided and includes two or more sensor assemblies, each including a sensing unit at a front face thereof, and each being communicatively interconnected and power sharing, a cover plate, mounted adjacent to the front face of the sensor assemblies to entirely cover the sensing units, through which user commands are transmittable, and a wall box, onto which the sensor assemblies and the cover plate are mountable, including a housing in which a space is defined for housing of one or more devices, each device being controllable by the sensor assemblies in accordance with the user commands, and each device being disposed to fit within the space and to be in signal communication with at least one of the sensor assemblies.