LiftMaster Monitored Retro-Reflective Photo Eyes | LIF-LMRRUL TrackPrice Premium Construction: Crafted with top-quality

Premium Construction: Crafted with top-quality materials for lasting durability

ETL Listed (UL 325): Usage Class I

Power: two 3V 2016 style batteries

and solid during the learning process when the transmitter is learned in

LiftMaster K20-3100C4

LiftMaster Monitored Retro-Reflective Photo Eyes | LIF-LMRRUL TrackPrice Premium Construction: Crafted with top-qualityLiftMaster Monitored Retro Reflective Photo Eyes LIF LMRRUL Enhanced retro reflective photo eye now with heater and wider beam, engineered to stay aligned; maximum range: 50 feet. Includes Steel sensor hood Durable polyethylene reflector hood 10 ft. wire Brackets Mounting hardware Features Long Range Sensing distance up to 50 ft. Increased beam angle for simple, reliable alignment. Built In Heater for dependable performance in most environments.