In any occasion that users are trying to make highly clear and stable enough dot measurement at various work distance, it is making an easy and efficient job to apply a 515nm green dot laser diode module. It is an industrial stabilized dot measuring device. Equipping with qualified glass coated lens and good cooling system, this direct diode emission made 515nm green laser alignment always assures high quality forest green laser light emission, and highly clear forest green dot alignment for all precise device manufacturing works.