The Wayne Dalton 252118 Safety Beam Set is a matched pair of photoelectric sensors engineered for select Wayne Dalton garage door openers. Designed to detect obstructions in the door’s path, this OEM replacement part helps restore the photo beam entrapment protection required on modern operators, reversing the door when the invisible infrared beam is interrupted. The set includes a sending unit and receiving unit that work together to provide reliable, everyday safety performance for residential garage door systems.
Intended for use only with Wayne Dalton operators that specify part 252118, these garage door safety sensors mount to the inside of the door opening near the tracks, typically a few inches above the floor, and connect to the opener’s dedicated low-voltage safety sensor terminals. Correct alignment is essential; install on each side of the opening and adjust until the units maintain a steady signal, as indicated by their status LEDs on compatible models. No special programming is normally required beyond proper wiring and alignment. For accurate fit and compatibility, consult your opener’s manual or model-specific parts list to confirm this photo eye beam set is the correct replacement for your Wayne Dalton unit.