This laser level is designed with a built-in pendulum lock, making it self-adjusting for easy, accurate set-up
The BAUER™ 100 ft. Self-Leveling 3 Dot Laser Level delivers increased-visibility ideal for leveling and alignment, framing, electrical work, carpentry, and HVAC. Easily switch between horizontal and vertical dot projections. An integral pendulum lock makes this laser self-leveling for easy, accurate set-up.