Scan your bills with this pocket-sized detector, and its UV rays will search for the magnetic ink found on legit dough, which is used for character recognition in computerized banking.

Counterfeit detecting pens – The pen is felt tipped and contains an iodine-based ink and costs a few dollars. A suspect bill is marked with the pen. The iodine solution reacts with starch in wood ...

This Quattro counterfeit detector by iTestCash has some stunning features such as optical density detection, infrared security marks, colour spectrum analysis and magnetic ink detection. This is a ...

Scan sensors: Identify the true value of bills with clipped corners to flag and challenge potential counterfeits Magnetic sensors: Compare magnetic ink levels on the currency with preset ...

Metal detectors already know if you’re concealing a weapon, and eventually they might know if you’re concealing large sums of cash too. University of Washington physicists Christopher Fuller ...