【QUALITY 】 Garage door safety sensor is made of high-quality ABS material. Manufacturers use the latest automated production lines in the production process, strictly control quality, and are equipped with intelligent testing procedures and manual sampling to ensure that each sensor is flawless. Quality is trustworthy. Our products last longer than the original sensors..【EASY TO INSTALL AND PROGRAM】 universal garage door opener can replace: G801CB-P, 2610459, 012381050345, 041A5034. Garage safety sensors detailed user manual is included to help you get set up and install in minutes. TIPS: Be sure power is NOT connected to the garage door opener BEFORE installing the safety reversing sensor..【UNIVERSAL COMPATIBILITY】 The garage door sensor replacement is compatible with liftmaster Sears Chamberlain Craftsman Master Mechanic & Wayne Dalton (1997-Current) garage door openers..【SAFETY COMPANION】 The 41A5034 safety sensor connects an invisible ray at the left and right ends of the garage door. When there are people or objects at the garage door, the ray is blocked, and your garage door cannot be closed at this time to protect your personal or property safety..【WORKING MODE】 Sensor replacement, The sending sensor (with an amber LED) will transmits an invisible light beam to the receiving sensor (with a green LED) when the sensors detect an obstruction, then the door will automatically stops closing and reverses direction.