If dot measuring work is processing with high level of accuracy, it is very nice experience to apply a 10mW 532nm green laser diode module. It is performing better than a green laser pointer. When it makes good use of metal heat sink cooling system inside durable metal housing tube, this industrial stabilized green dot laser achieves superior nice thermal emitting and extremely stable and reliable green dot alignment in continuous use. This 10mW green laser diode module applies qualified glass coated lens. The strict laser beam stability tests have just assured no decay light green laser beam and green dot indication. It assures no decay light emission and extremely clear green dot alignment for both long distance and high lighting. Only if compact size green dot laser makes proper installation and adjustment of laser beam focus, it makes the most satisfied dot aligning result for all precise device manufacturing works perfectly. Technical data: Item: Berlinlasers 10mW 532nm green laser diode module Laser class: IIIb Optic lens: glass coated lens Power source: 5V 1000mA AC/DC adapter Adjustable focus: yes Applications: drilling system, laser marking machine, laser engraving machine, military targeting and lab experiment etc http://www.berlinlasers.com/532nm-green-laser-diode-module