Berlinlasers Red Line Laser Module with Adjustable Focus Optics

What is the best choice for users to make extremely clear and accurate line alignment? No matter it is pointed for close distance or long distance, the use of Berlinlasers red line laser module with external DC input power supply is always workable with continuous and highly stable red reference line projection form beam aperture. Being made with inner metal heat sink cooling system and APC, ACC driving circuit board inside metal housing tube, this laser line generator achieves super nice thermal emitting and the most stable line projection in continuous work.
http://www.berlinlasers.com/650nm-red-line-module-non-gaussian-distribution