Dri-Mark® : Dri-Mark® Counterfeit Money Detection System
Powerful yet compact ultraviolet penlight reveals UV-sensitive security markings on 1996 series or newer U.S. currency denominations greater than $1. Counterfeit detector pen works using a chemically sensitive ink. UV light also works on many foreign currencies, major credit cards, passports, traveler`s checks and more. Batteries (included) last up to 20 hours.
Dri-Mark® Counterfeit Money Detection System 
Price:
from $4.24 
Dri-Mark® Smart Money® Pen 
Dri-Mark® iDetector 
Price:
from $0.49 