Bosch GLL3-80 BS 150 3-Plane Leveling Alignment Laser with Compact Tripod Kit Provides three precise 360-Degree full plane coverage in both horizontal and vertical operations Versatile 360-degree 3-plane line laser: Level, align, plumb & square the entire room from one set-up point Smart Pendulum Lock: A self leveling pendulum system that locks when turned off for protection during transport 1/4-Inch Mounting Thread: Compatible with Bosch line lasers, point lasers and laser measures Precise height adjustment turn knob: Easily adjust tripod to selected height Class IIa laser product, 1mW power output