Comparing with any other manual dot measuring tools or mechanical dot alignment tools, the operation of 532nm green laser diode module just brings users the most wonderful laser dot alignment result on various working surfaces. On basis of the most advanced 532nm green DPSS laser tech, this middle wavelength laser dot alignment tool not only keeps the most sensitive color green laser beam emission, but also enables the most compact diameter green reference dot positioning on various working surfaces efficiently. For instance, in majority of industrial machinery processing works, dot alignment is not only limited by your hand reaching work places. When you are keeping in mind of simple sticker, laser pointer or your own finger, these manual dot measuring tools are only workable for quite close distance, while still cannot avoid mistake by manual operation. In current industrial machinery processing and inspection works, green laser diode module gets extremely bright and visible green laser beam emission to human eyes. Within wide range output power of 5mW to 100mW, 532nm green laser diode module is making great work for quite long work distance. This green laser alignment tool gets extremely low laser beam divergence of less than 1mard, in formal dot alignment work, the maximum work distance can be controlled within 25 meters. For the most important of all, in order to make sure of the most precise and accurate dot alignment on various working surfaces, this laser diode module is just cautiously designed with adjustable focus. According to very simple adjustment of laser beam focus, green laser diode module generates high intensity green laser beam, forming into the most concentrated green alignment laser dot on all desired working surfaces. At 3 meters work distance, after proper adjustment of laser beam focus, the minimum green dot diameter is only 1mm to 2mm. However, with the extending distance of laser dot alignment, green laser beam might become dim. Users should try to make perfect control of work distance so as to ensure the most precise and accurate green alignment laser dot positioning efficiently. When users are choosing high power 532nm green laser diode module up 50mW, it just generates extremely powerful green laser beam in distance. Users should try to pay high attention to powerful laser beam radiation, and never try to stare at powerful green laser beam directly. In addition, it is also very important for users to wear proper 532nm wavelength preventing laser safety glasses so as to get secured dot alignment efficiently.