If there is not a clear idea for users to make an immediate and quick dot measuring result on different targeting surface, it would be the most wonderful choice for user to make good use of a green dot laser alignment. When highly bright green laser dot is pointed from 532nm green DPSS laser part, it is just showing clearly with a small and bright green dot in distance. After proper adjustment of laser beam focus, this green laser module is allowing operation within maximum work distance of 25 meters.
This green dot laser alignment gets nice equipment with an external DC input power supply. Equipped with APC, ACC driving circuit board, even though it is workable with quite high power, however, this green laser module is always keeping constant and stable green reference dot targeting from laser beam aperture part. It is accepting dot aligning within maximum daily operating time of 8 to 10 hours, and then power off for laser module tube cooling down. Only if users are selecting a correct power made green laser module, it is just making no mistake and high speed dot alignment result precisely.
http://www.berlinlasers.com/532nm-green-dot-projecting-laser-alignment