How to use highly precise measured 50mW 445nm blue laser diode module correctly?

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In order to make high precision dot alignment at various work distances, different from a simple blue laser pointer, it is operating easy and quick with a direct diode emission made Berlinlasers 445nm blue laser diode module. It is an industrial stabilized dot measuring tool, owing to the use of thermal emitting, it enables good laser beam stability and highly clear blue dot alignment in constant use.
This 445nm blue laser diode module applies a qualified glass coated lens and a glass window built into 16mm diameter tube, it achieves high quality blue laser light source emission, and highly clear blue dot projection under moisture or dust as well. According to correct use of output power and freely adjusted laser beam focus, it assures the most charming blue laser light emission and the clearest blue dot alignment at long work distance perfectly.
Applications: industrial precise dot alignment, laser show, laser displaying, laser communication, military targeting and high tech work etc.