A Class 2M laser is safe because of the aversion response if not viewed through optical instruments. As with class 1M, this applies to laser beams with a large diameter or large divergence, for which the amount of light passing through the pupil cannot exceed the limits for class 2.

ANSI Z136.1 indicates that laser area warning signs should be posted around Class 2 laser areas. LIA has a laser area warning sign for any type of laser. LIA signs are 10" x 14" in size are are available in plastic material. All signs meet the ANSI Z136.1 requirement for laser safety and can be customized with your laser's specifications and warning statements for only $5.00 per sign. Quantity discounts are available!