Berlinlasers Green Laser Diode Module with Easy Adjusted Beam Focus
When the real dot alignment is processed with green laser diode module, according to very simple screw of laser beam aperture, high intense green laser beam is converted into highly concentrated green laser dot, making sure of the clearest green reference dot positioning for all industrial inspection work fields. This green laser module gets wide output power range of 5mW to 100mW, users only need to choose correct output power, it just easily gets clear and accurate enough dot measurement clearly and accurately.
http://www.berlinlasers.com/532nm-green-laser-diode-module