The Bosch Self-Leveling Cross-Line Laser, No. GLL40-20G, projects visible green laser lines. The tool has a working range of up to 40' and offers a reliable accuracy of +5/6" at 30'. It features VisiMax technology, which monitors tool temperature and power consumption to deliver the brightest line for the job, optimized energy efficiency, and long-term tool reliability. The cross-line laser is also equipped with a Smart Pendulum System allowing for automatic self-leveling and indication of out-of-level condition, as well as pendulum lock for safe tool transport. The included MM 2 Flexible Mounting Device provides a rotating 360 degree neck for quick setup and simple fine-tuning allowing for the laser to be clamped onto virtually any surface from 1/2" to 2-1/4" thick.