Using the Spectra Precision Laser LP20, one person can accurately transfer a point from the floor to
the ceiling up to 30 m (100 ft) high in just seconds. Unlike other lasers, the LP20 can withstand up
to a 1 m (3 ft) drop onto concrete and can still be accurate. Ideal for the installation of overhead
fixtures and plumbing walls or metal studs, the LP20 is very easy to use. Simply place it on the floor
 and turn it on. LP20 features a self-leveling mechanism which automatically levels the beam before you
 reach the top step of the ladder. Waiting for a plumb bob to settle is a thing of the past!