Safe-T-Beam sensors send an invisible infrared beam across the bottom of the door. If anything breaks the beam while the door is closing, the door reverses.
Working safety sensors are required on every automatic opener. Replace damaged or faulty sensors right away.
Looking for the Garage Door Opener Safety Beams? We stock and install opener accessories for homes across NYC and Long Island. Not sure it matches your opener? Send us the model number and we will check.