Hand held wireless reading viewer for bar codes printed with fluorescing inks that are invisible to the human eye. The reading viewer comprises a portable housing with a window transparent to the excitation and emission wavelengths, an LED or laser diode illuminator module having optical filter and diffuser, an image sensor module with a spectral band limited imaging optics, real time LCD video display, microprocessor with an image acquisition circuit, RF communications port, battery and self-destruct intrusion detector.

 
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