Lutron MS-A102-WH Maestro Dual Technology Occupancy Sensor SwitchThe Maestro Dual Technology (Dual Tech) Occupancy Sensor Switch applies our exclusive XCTT Technology to the ultrasonic as well as the passive infrared technology in this sensor to create a product that can detect very fine motion, such as typing. This product also includes all of the great features found in the rest of the Maestro sensor family, including: adaptive relay switching, smart ambient light detection, and simple button presses for changing