Bosch pcl 20 self leveling cross line laser level bosch diy 0603008200 the bosch pcl 20 self leveling cross line laser level can produce a true horizontal line with an intersecting upright a single vertical or horizontal line an inclined plane and even has a plumb function for transferring a point from floor to ceiling it has a working range of up to 10m and levels itself automatically in a few seconds without any need for manual alignment bosch 0603008200 pcl20 self leveling cross line la