“How does it let you know a bill is counterfeit? Does it blink or make a noise, or am I supposed to know what I'm looking at? :)”

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• Hello, this unit has a guide on top that tells you exactly what to look for: Ultraviolet light will expose the security thread or lack there of if counterfeit, Fluorescent light will expose the security watermark or lack there of if counterfeit, the Magnetic sensor will beep and a red light will turn on to say the bill is valid. Thank you, Royal Sovereign

  Answered by Royal Sovereign 2 years ago

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• The unit will beep and blink if it is a counterfeit bill.

  Answered by CommunityAnswer 7 years ago

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