Counterfeit banknote detection pen: Difference between revisions

Revision as of 21:07, 6 February 2024

Revision as of 21:26, 6 February 2024

Line 1:

{{Short description|Currency authenticator}}

[[File:An_example_of_a_Counterfeit_banknote_detection_pen,_13_October_2022.jpg|thumb|A Counterfeit banknote detection pen, used to detect fake banknotes.]]

A '''counterfeit banknote detection pen''' is a pen used to apply an [[iodine]]-based ink to [[banknote]]s in an attempt to determine their authenticity. The ink reacts with starch in wood-based paper to create a black or blue mark but the paper in a real bill contains no starch, so the pen mark remains unchanged.but it is still not a clear sign that it is counterfeit money

==Background==