It is always a very difficult work for users to get clear enough line positioning at quite long work distance, however, with constant work on professional laser line measuring tool by laser tech engineers, users just get quite easy and accurate line positioning result with the assistance of Berlinlasers red line laser alignment. It is keeping the adoption of high quality glass coated lens, besides its super high laser beam transmittance, the real laser line aligning work is just processed without any laser light decay or dim in continuous work.
Within quite wide range glass lens degree of 10 to 110 degree, red line laser alignment is able to get different line length in distance. According to correct selection of glass lens, this laser line module can get maximum line length of 6 meters, available with high linear quality and no laser light decay in continuous work. Users should also be cautious enough with powerful red laser light and laser reflection, according to proper installation and adjustment of laser line targeting direction, this red laser alignment gets easy and quick line targeting on all targeting surfaces conveniently.
http://www.berlinlasers.com/pro-red-line-projecting-laser-alignment