The Replacement Safety Sensors project an invisible light beam across the inside of the garage door to prevent accidents and fit every Chamberlain® Garage Door Opener manufactured after 1997; they include two safety sensors, mounting brackets and hardware.
More control: the Replacement Safety Sensors project an invisible light beam across the inside of the garage door to prevent accidents and are required for safe use of all Chamberlain® Garage Door Openers. Whenever there is an obstruction, the garage door will automatically reverse before causing any damage.