Liftmaster LMRRUL Retro-Reflective Photo Eye

Long Range Sensing distance up to 50 ft. Built-In Heater for dependable performance in most environments. Alignment strength indicator signals optimal beam alignment. Requires power only on one side of the installation. Reflector hood 10 ft. wire brackets and mounting hardware included. NEMA 4X rated for superior weather resistance. Meets UL 325 Safety Standards.