The GLL 2-20 360° horizontal cross-line laser delivers everyday convenience and precision. Same as all Bosch lasers, it’s easy to use. The 360° line coverage gives the user the ability to line up an entire room from one setup point. It also features a vertical projection of 120° for cross-line applications. Simultaneous Work with a 360° Horizontal Line The bright 360° horizontal line allows the user to project a laser reference line around the room with accuracy to quickly establish level, enabling users to work in different parts of a room simultaneously. The GLL 2-20 range is 65 ft. diameter with accuracy of ± 3/16" at 30 ft. Smart Makes Things Easier Combined with the Smart Pendulum System, the GLL 2-20 offers self-leveling, one-time setup and an out-of-level warning indicator. In addition, the system automatically locks when switched off.