When dot alignment work is processing at different work distances, different from a simple green laser pointer, it makes a better job with a direct diode emission made device of a 520nm green laser diode module. Being made with an import laser diode, not limited by temporary dot positioning work, it gets better thermal emitting from inner metal heat sink cooling system and APC, ACC driving circuit board. It enables long lasting green dot projection within 10 hours, and up to 85% laser beam stability in continuous use. 
This laser diode module applies a qualified glass coated lens inside a durable anodized aluminum alloy housing tube, which allows highly clear and stable green dot projection under multiple working occasion, including mechanical moving or shocking as well. When it emits high density green laser beam emission at long extending distance, within the longest work distance of 25 meters and formal lighting occasions, it brings users high precision and high stability green dot alignment for all precise machinery processing works constantly. 
Applications: industrial device manufacturing, laser marking, laser engraving, drilling system, military targeting, lab experiment