The way the pen works is that a gold mark means the money is authentic while a dark mark means the money is counterfeit. It is a covert security feature that provides authentication but does not require the use of a proprietary decoder.įPT can be verified with the widely used and trusted Counterfeit Currency Detector Pen (CCDP), which is used to authenticate money everywhere from banks to grocery stores.
The HALO security features can be authenticated using a proprietary lens.
It is a patented covert security feature such that computers, scanners, photocopiers and printers cannot duplicate the hidden security feature. HALO belongs in our family of authentication technologies.