Genie Note validator Quicktester Plus

Handy banknote checking pen; a portable and straightforward protection against counterfeit money. It reliably checks all currencies made from banknote paper, such as Euros, US Dollars, Swiss Francs, and partially British Pounds. The high-quality output of color copiers and standard printers today allows even less professional counterfeiters to produce convincingly real banknotes. Excellent copies can be made on regular paper that are hardly distinguishable from the original. The GENIE Quicktester is designed to provide simple and portable protection.

How it works: You mark a banknote with the pen, preferably on a light spot at the edge of the note, and wait a moment.

Results:
Genuine money - The mark fades to a slightly yellowish color and is hardly visible later.
Counterfeit money - The mark is very dark and clearly visible.
Alternatively, you can shine the built-in UV light on the banknote, which will fluoresce if it is genuine.