Blue Dot Laser Alignment Review What is an easy job to make highly clear dot measurement in distance? It is not easy to reach with a simple manual dot projecting tool, but making even better job with a direct diode emission Berlinlasers economy red dot laser alignment. It is projecting moderate brightness blue laser light directly from a 445nm blue laser diode. The special use of a metal heat sink cooling system is configured with 16mm diameter metal housing tube. In various industrial precise dot measuring work fields, according to real work distance and lighting occasion, this 445nm blue laser diode module enables correct use of output power and easy reaching of blue dot emission onto any raw material surface. When it makes freely adjusted beam focus and blue dot emitting direction, within freely installed distance of 3 meters, it brings users the lowest price and the most stable dot alignment for industrial precise dot measurement, laser show, laser displaying and scientific experiment work etc. https://www.berlinlasers.com/blue-dot-laser-alignment