If there is serious need of highly accurate dot alignment in distance, none of manual dot targeting tool can substitute the use of a high brightness Berlinlasers green laser diode module. This dot laser alignment tool gets good use of advanced 532nm green DPSS laser tech, owing to its quite low laser beam divergence of less than 1mard, it is always keeping the smallest size green dot targeting in distance. On basis of work distance and real lighting working occasion, a correct output power made green laser module will make highly accurate dot alignment for all industrial and high tech work fields effectively.
Within wide output power range of 5mW to 100mW, green laser diode module is used not just within hand reaching, but workable at quite long distance and high lighting occasion etc. It is a very nice accessory part, which is able to be installed on any other device or equipment, and then making sure of the clearest dot instruction for laser marking, laser engraving, drilling system etc.
http://www.berlinlasers.com/532nm-green-laser-diode-module