The Pacific Laser Systems PLS 3 Handheld Laser provides 3-beam plumb and level, and point-to-point laser alignment, allowing you to lay out reference points faster than traditional, labor-intensive construction levels. No more swinging plumb bobs. Plumb instantly from floor to ceiling or from 50 feet off the ground. Self-leveling, no time wasted with bubble vials. Turn it on and go to work on the jobsite. Take clear, stable reference points indoors and outdoors. Laser is compact, durable, lightweight and portable. U.S.A.