Advanced invisible lightbeam safety sensor kit that protects people, pets, and property by stopping and reversing a closing garage door when the beam is interrupted. Key benefits Prevents entrapment and damage: The invisible lightbeam system monitors the door opening. If either sensor beam is interrupted, the opener will stop and reverse the door to avoid injury or damage. Simple upgrade or replacement: Use this kit to faulty sensors or add reliable safety sensing to compatible openers. Everything needed to install: Includes sensors with attached wires and the basic mounting hardware so you can complete the replacement in one visit. What's included 2 safety sensors (with attached wires) 2 wing nuts 2 screws 5 roundhead bolts User manual technical support for installation and troubleshooting Function and performance Invisible infrared lightbeam communication between the paired sensors provides continuous detection across the garage door opening. When an obstruction breaks the beam during closing, the opener's safety circuit reverses the door to help prevent accidents and damage. Sensors are prewired for straightforward connection to compatible openers. Compatibility Compatible with garage door openers that include a safety sensor option from: LiftMaster, Sears, Chamberlain, Craftsman, Master Mechanic, and Wayne Dalton Fits models from 1997–Current that support external safety sensors Installation and support Quick, doityourself installation with the provided hardware and user manual. Selfprogramming instructions included; tech support available if you need help during setup. Practical use scenarios a damaged sensor on a Craftsman opener to restore safety after an accidental impact or wear. Install both sensors on a LiftMaster opener to secure garage access where small children or pets regularly pass under the door. Use as a direct swap for Chamberlain or Sears units from 1997–current when troubleshooting intermittent door reversals. Notes This kit supplies the sensors, mounting hardware, and instructions. Ensure your opener model supports external safety sensors before .