If there is a special need of high accuracy dot alignment at quite long work distance, it would be the best choice for users to make good use of Berlinlasers 445nm blue laser diode module. This is a quite high power dot measuring tool, under condition that it is being made with quite nice metal heat sink cooling system and copper made laser diode core part, this metal housing made blue laser module always gets superior nice thermal conductivity, and then assuring the most stable dot alignment in long term use.
Besides its nice cooling system, this blue laser diode module is also getting important design part of APC driving circuit board, which is making great work for users to obtain the most constant blue reference dot targeting in long term use. This high power laser dot alignment is also a very nice and industrial stabilized dot measuring tool. When it is getting proper operation and high attention to laser safety measures, this blue laser module easily obtains the best dot instruction for laser marking, laser displaying, laser show and decoration works etc.
http://www.berlinlasers.com/445nm-blue-laser-diode-module