The Spectra Precision® LP51G 5-Beam Laser Pointer utilizes a high visibility green laser beam. It is designed to handle a wide range of interior construction applications and is especially well suited to handle brighter ambient light conditions. This rugged laser layout tools offer several benefits to general and interior contractors, electricians, plumbers and a variety of tradesmen. The LP51G projects 5 high-visibility green points: one point up, one down and three horizontal points 90 degrees to each other.  High visibility green beam can be seen in brighter ambient conditions Automatic self-leveling and plumb assures accuracy and fast setup One person installation of walls, doors, ceiling track and other overhead fixtures without the need for a plumb-bob Fast, one person 90° layout of rooms, walls, tile, carpet squares and fixtures Accuracy of 3/16 inch at 50 feet (3mm @ 10m) Working range up to 100 feet (30m) Dust, water and shock-resistant for improved reliability and minimal repair costs Durable unit with protective rubber over-molding withstands a drop of up to 3 feet (1 m) onto concrete and still maintains consistent accuracy Compensator lock for non-level applications and secure transport Exclusive 3-Year instant exchange warranty Ships complete in a soft pouch with magnetic mounting accessory, target, 2 x AA batteries and multi-language user guide