This blue line laser module applies qualified glass coated lens within 10 to 110 degree and glass window inside highly durable metal housing tube. It enables easy installation, high linear quality and highly straight blue line projection within 0.5 meter to 6 meters. When it makes freely adjusted laser line fineness, not limited by long distance or high height, it brings users high stability and low cost line alignment for laser cutting, sand milling, lumber machine, high tech and lab experiment work etc.
https://www.berlinlasers.com/4....45nm-50mw-80mw-100mw