About this itemVersatile Self-leveling & Angle Lock Modes: This laser level offers two modes - self-leveling mode and angle lock mode. 1. Press the button on the top of the laser to turn the laser on and into angle lock mode. The laser will project to a fixed position to create a cross curve, then tilt to mark at an angle. While the laser is in angle lock mode, the laser will flash every 5 seconds to remind you that it is in angle lock mode and not auto-leveling mode. To turn the laser off while in angle lock mode, press and hold the top button for 5 seconds. 2. Slide the side power button to the "on" position to enter auto-leveling mode. The laser will now level to a straight horizontal and vertical line. If the laser is placed on a surface th.
eBay