Description Radio Powr Savr battery-powered wireless, passive infrared, 180 degree Wall-mount, occupancy/vacancy sensor (431.0-437.0 MHz) Lutron Radio Powr Savr wall-mounted occupancy and vacancy sensors are wireless, battery-powered, passive infrared (PIR) sensors that automatically control lights via RF communication to compatible dimming or switching devices. These sensors detect the heat from people moving within an area to determine when the space is occupied. The sensors then wirelessly transmit the appropriate commands to the associated dimming or switching devices to turn the lights on or off automatically. They combine both convenience and exceptional energy savings along with ease of installation. Features Wireless occupancy/vacancy sensor has 2 settings available: Auto-On/Auto-Off, and Manual-On/Auto-Off Passive infrared motion detection with exclusive Lutron XCT Technology for fine motion detection 180° field of view model: – Minor motion = 1500 ft2 (139.4 m2) – Major motion = 3000 ft2 (278.7 m2) Simple and intuitive adjustments available for Timeout, Activity, and Auto-On settings 10-year battery life design Technical Info: http://www.lutron.com/TechnicalDocumentLibrary/Spec_Sheet_369481a_ENG.pdf