Maxsa 37312 Silver Right Dual Garage Laser Park Park Right Dual Laser helps park two cars to navigate tight garages with ease Motion sensor detects movement up to 10 feet away Adjustable laser beams tell you where to stop to park perfectly, every time Easy installation with either included screws or double stick tape, AC powered, requires no wiring, contains a dependable backup battery Meets Class IIIA Red Laser requirements for highest safety and performance