Quickly and easily check for fake bills with this compact Infrared (IR) counterfeit detector. Infrared camera helps to verify theÂ photosensitive inks and anti-counterfeit design patterns not visible to the naked eye on most U.S. bills. The built-in display checks the infrared security strip on currency. The convenient currency guide located on the front side of the unit makes it easy for anyone to confirm if the bills are real by showing the location of the security strips on current U.S. currency. Sleep mode with quick reactivation saves energy.