Magic money detector pens on the banknotes you know true or not all country's currency money detector inspection

Money detector pen. banknotes in most countries around the world this defense \ authenticity checks as well as securities, the Yuan and the dollar and the euro is particularly significant, as long as on banknotes, banknote pale yellow or colorless and can disappear without trace; counterfeit notes were black or brown color and it is difficult to go away and leave a mark.

Has been exported to the United States, Europe and other countries.