No More dangling tennis balls· This innovative new accessory is designed to help you park in the right spot, every time· Simple installation· Works automatically - the red dot from the laser turns on automatically, letting you know exactly where to stop· Up to two laser parking accessories will work with each garage door opener

How it Works:
Parking laser beam is automatically turned on for 90 seconds when safety beam is interrupted as vehicle enters. Driver then pulls the car in until the red dot from the laser hits a pre-targeted spot on the dash, indicating when to stop. Up to two laser parking assistants can be installed on one garage door opener for double car garages. Mounts to either wall or ceiling with fully adjustable beam. This item is new in box with mounting kit and includes 7 feet of wire and instructions.
Will only work on LiftMaster, Chamberlain and Sears garage door openers that have safety sensor beam.

Product Features:
Automatically turns on pulsating beam for 90 seconds whenever the safety beam is interrupted
Work on all LiftMaster, Chamberlain and Sears garage doors that have safety sensor beam
Simple to install. Connects to photo-eye terminals on garage door opener
Class 2 laser is safe on the eyes, yet clearly visible