If users are making highly precise dot alignment, either used for long distance or long time, it is just a quite nice experience to apply a 10mW 635nm red dot laser module. It is an industrial stabilized dot measuring tool. Configured with metal heat sink cooling system and import 635nm red laser diode, this durable structure red laser gets superior nice thermal emitting and increasing stability red dot alignment continuously. In continuous dot measuring works, without any laser light decay or dim, 10mW 635nm red dot laser module applies qualified glass coated lens. It makes good equipment with glass window in front of beam aperture, not affecting by any moisture or dust, it is keeping clear and visible red dot projection. When it gets proper installation and adjustment of laser beam focus, noncontact red laser dot is easy to reach any working surface perfectly. Technical data: Item: Berlinlasers 10mW 635nm red dot laser module Laser class: IIIb Optic lens: glass coated lens Adjustable focus: yes Power source: 5V 1000mA AC/DC adapter Applications: drilling system, laser marking, laser engraving, lab experiment and scientific research etc http://www.berlinlasers.com/635nm-red-dot-laser-module