If anybody who is looking for a quite easy and quick dot measuring, nothing would be much better than the recommended device of Berlinlasers green dot laser alignment. It is an industrial stabilized dot aligning tool, whenever it is workable with easy connect with a DC input power supply, it is just supporting quite wide range output power from 5mW to 100mW, and then easily obtaining bright enough green reference dot targeting on various targeting surfaces.
This green dot laser alignment is a very easy operated and professional dot alignment tool. When it is designed with electric wires for both green laser module tail part and DC input power supply, it is just allowing free and easy installation within 0.5 meter to 3 meters. There is also no clear barrier caused by work distance, height, and any other etc. Users can use this green laser module as an accessory part, after easy installation and adjustment, getting the clearest dot instruction for multiple work fields, including military targeting, laser marking machine, laser engraving machine, drilling system and textile garment processing work etc.
http://www.berlinlasers.com/532nm-green-dot-projecting-laser-alignment