GPL5 Bosch Five-Point Self Leveling Alignment Laser GPL5 Bosch Five-Point Self Leveling Alignment Laser features five-point level with points up/down, front and sides for plumb, level, align and 90$deg; square. GPL5 Bosch Five-Point Self Leveling Alignment Laser eliminates the need for 3-4-5in measurements in laying out a 90° angle. GPL5 Bosch Five-Point Self Leveling Alignment Laser features Smart Pendulum System self-levels, indicates out-of-level conditions and locks when switched off. GPL5 Bosch Five-Point Self Leveling Alignment Laser has multi-purpose attachment positions that mount with magnets, strap or threaded mounts.