High Precision Measured Gaussian Beam 660nm Red Line Laser Module Whatever kind of working surface user are making ultra clear and fine line indication in distance, not relying on manual line drawing or printing work, it makes a better job with a high energy density emitted device of a 660nm red line laser module. It is configured with an import 660nm red laser diode and thermal emitting system inside a durable metal housing tube, it achieves superior nice thermal stabilization and increasing accuracy red line alignment at longer distance and longer time precise line positioning works. This laser line generator applies a qualified glass coated lens within 10 to 110 degree fan angles and glass window inside its durable housing tube, in order to achieve ultra clear red line indication in distance, it also enables freely adjusted laser beam focus. After its immediate red laser light source concentration, it converts into increasing brightness and fineness red line alignment in distance effectively. Applications: lumber machine, textile garment processing, laser cutting, saw mill, laser medical therapy, scientific experiment https://www.berlinlasers.com/glass-coated-lens-660nm-red-line-laser-module