Add a sense of security in and around your home or place of business with the First Alert PIR725 Motion-Sensing Light Socket. This item simply screws into an existing light socket for easy installation. It features patented motion sensing technology that automatically turns light on when entering and off when exiting. It senses movement in all directions with a 360-degree radius and 12' range, in both day and nighttime conditions. Ideal for laundry rooms, basements, walk-in closets, attics, utility rooms, stairways and garages. The First Alert motion-sensing light socket is intended for indoor use only and carries a 3-year limited warranty.