Johnson Level and Tool 40-6516 Self-Leveling Rotary Laser Level<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Locking mechanism protects inner pendulum during transportation</li><li>Self-leveling in the horizontal plane</li><li>Manual-leveling in the vertical plane with 90° split beam with illuminated vertical vial</li><li>Visual and audible alarms when beyond leveling range</li><li>Laser rotates at 200， 400， 600 RPM</li><li>Laser Class llla Power output Less/Equal to 5mW</li></ul></div><img src="http://ecx.images-amazon.com/images/I/51nd6Kok5dL.jpg" noproxy>