Product details:

Rated for outdoor and indoor use at up to 800 ft. the Self-Leveling Rotary Laser Level Kit provides pinpoint accuracy within 1/4 in. at 100 ft. to aid electrical, plumbing, landscaping, grading, carpentry and installation tasks. The level works effectively over long distances and has visual and audible alarms when the laser goes beyond its intended range. Versatile and accurate, it has self-leveling capability in the horizontal plane and manual leveling in the vertical plane with 90掳 split beam. Choose among three rotational speeds (200, 400 or 600 RPM) to match the device to your preferred applications.