-- 3 Operation Modes: On, Off, Auto A slider switch on the face of the unit allows you to easily switch between Auto, On, and Off modes. Behind the cover plate, settings for the time delay, range, and light level are easily accessible and adjustable. Simply use a flathead screwdriver to turn each knob to the setting you desire! -- Innovative PIR Technology The WOS uses passive infrared (PIR) technology to detect occupancy by sensing the difference between heat emitted from the human body in motion and background space. Enjoy energy saving benefits by ensuring lights are always accurately turned off. -- Sensor Override Feature Use the WOS as an occupancy motion detector sensor, or set it to Off or On mode to override the sensor function. A neutral wire is required for installation. For single-pole applications only. --Typical Applications ■ Bedrooms ■ Bathrooms ■ Laundry Rooms ■ Closets ■ Garages ■ Kitchens ■ Home Offices