Block has an extensive selection of Counterfeit Detector Machines and Currency Authenticators with a wide range of features. You'll find the Counterfeit Detector to meet your needs, and fits your budget. When selecting a counterfeit detection machine, consider the following:

 •  What denomination of currency do you most often accept?
 •  What type of transaction time do you require?
 •  How much space do you have?
 •  Where or what is your power source?