Park in the right spot every time with help from the Universal Laser Parking accessory. The laser turns on automatically and projects a beam onto your car's dashboard. Once the beam hits a pre-determined spot on your dash, you know you've pulled in far enough, and exactly where to stop. Perfect for 2-car garages - up to 2 laser parking assists will work with each garage door opener. Simple installation: Wire your parking assist to your garage access system or plug into any standard 120V outlet in your garage. Easy-to-program. Class 2 laser is safe on the eyes, yet clearly visible. Compatible with any brand of garage door opener.