If there are a lot of working places where users are in need of extremely accurate cross line targeting, I would like to recommend users a quite nice measuring tool of Berlinlasers green cross laser alignment. It is a very bright and visible laser beam emitting laser module device. On basis of good equipment of high quality glass coated lens, it is generating quite complex laser beam in type of two perpendicular lines, fulfilling clear and easy cross line alignment for all industrial and high tech measurement works.
Available with selectable optic lens degree of 10, 15 and 110 degree, green cross laser alignment is generating high linear quality green cross line source, with various line length from 0.5 meter to 6 meters. This green laser module is keeping quite low laser beam divergence, thus it is able to assure the clearest cross line generation with the maximum work distance of 25 meters. This green laser module is also used as an accessory part, which is able to make the best cross line instruction for laser alignment for screen printing system, military targeting, laser show etc.
http://www.berlinlasers.com/532nm-green-cross-projecting-laser-alignment