The Lutron Maestro MS-A102-WH dual technology sensor switch uses exclusive XCT sensing as well as passive infrared technology for maximum responsiveness within a 180-degree field-of-view. This white-finished occupancy sensor ensures the lights automatically turn on when very fine motion, such as typing, is detected and automatically turns the lights off when movement has ceased. This amazing single-circuit sensor switch also features adaptive relay switching, smart ambient light detection, and simple button presses for changing settings.