How to make constant measurement with 532nm green line laser alignment?

In those of industrial and high tech precise line positioning work fields, even though it is far more enough than formal hand reaching, it still makes a good job with a Berlinlasers 532nm green line laser alignment. The advanced use of 532nm green DPSS laser system and qualified optic lens are configured with high duration metal housing tube, it achieves the most visible green laser light source emission, ultra fine and straight green reference line projection in continuous use.
This alignment laser applies a qualified glass coated lens or separate crystal lens within wide fan angles of 10 to 110 degree. It enables highly straight and fine green line projection within 0.5 meter to 6 meters, and ultra fine green line of only 0.3mm at 10cm and 1mm to 2mm at 2 meters work distance. It should only be mounting correctly onto industrial device or equipment, within freely installed distance of 3 meters, it brings users the most convenient and the most precise line indication at great distance perfectly.
Applications: guideline for stone, wood, metal, steel and garment cutting, lumber machine, saw mill and high tech etc
https://www.berlinlasers.com/532nm-green-line-projecting-laser-alignment
https://www.berlinlasers.com/alignment-laser