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LiftMaster: Monitored Light Curtain
Monitored Light Curtain LC36M provides an invisible 3-foot wall of protection, consisting of 22 monitored infrared cross-beams that span across the plane of the door for safety up to 33 feet. The invisible screen of protection immediately senses any obstructions in the way of the door, stops it from closing and reverses to its fully open position; helping to minimize injury, costly repairs and unexpected downtime.