B$Absolutely sure uses patented Opto-Electronics technological know-how to zero in on currency irregularities. The product is handheld. All you have to do is scan its light above the bill. The Treasury had built no programs to revamp the $5 Invoice using shades but not long ago[when?] reversed its choice following https://bookmarkindexing.com/story16888452/5-simple-statements-about-counterfeit-money-printer-for-sale-explained