Highly effective and inexpensive tool for detecting bad bills and deterring counterfeiters from passing phony currency in the first place.

Simply make a small mark on the currency. Chemically sensitive ink detects authenticity instantly.

An amber mark passes the test, while a dark brown or black mark means the bill is probably counterfeit.

Works on all new design U.S. currency (bills series 1959 and later) and most current international bank notes.

Each pen will test thousands of bills.

Pen-style for extreme portability.

Simply make a small mark on U.S. currency.

Chemically sensitive ink works instantly.

Amber mark passes the test, while a dark brown or black mark means the bill is suspect.

Works on all new design U.S. currency (1959 and later).