As mentioned
in the UV description, this is the second tier of field verification.
This laser device is
specially tuned to an
exact wavelength designed to react with CodeSafe®;
undeniable secure document verification is achieved with the laser's
red/orange fluorescent reaction.
This
wavelength
is
out
of the normal visual spectrum of light making the beam invisible
to the
human
eye, but
will fluoresce when targeting the CodeSafe® area.
Once again, due to its up and down conversion characteristics, the CodeSafe® will
react by turning a different color, dependent upon which wavelength
of light
that targets
it.