Tools for identifying these bills are critically important. Accepting counterfeit money is the equivalent of being robbed — someone gets your services or merchandise and you get nothing in return. To prevent this from happening, it’s worth investing in a counterfeit money detector. Read on to find the best counterfeit money detectors to buy now. And why stop at money? The Royal Sovereign 4-Way Detector can vet credit cards for legitimacy, too, and if you happen to be running a bar or other establishment that requires identification from customers, it will even verify IDs for you. What we really like about this detector is all you get for a really reasonable price. The Royal Sovereign 4-Way even comes with a one-year limited warranty. The old-fashioned lamp detectors of years ago required frequent changing of bulbs, but these in the AcccuBanker LED420 are particularly long-lasting. They can go up to 10,000 hours before replacement. The LED420 requires a 12VDC AC/DC power adapter. It does this by scanning each bill and cross-referencing it with numerous databases. Battery power is optional if you want to use the detector on the go rather than at your cash register. The InstaCheck detector comes with a one-year warranty and Cassida is said to offer pretty good customer service support. This is a particularly cost-effective package because you get two regular pens in the kit along with the duel test pen. The pen is very easy to use, but it comes with an instruction booklet just in case you have any questions. B$Sure uses patented Opto-Electronics technology to zero in on currency irregularities. The device is handheld. All you have to do is scan its light over the bill. B$Sure’s Portable detector was 100 percent accurate in testing by multiple sources without a single false reading. It also comes with a 100 percent money-back guarantee. This detector uses a combination of UV, MG, IR and multi-spectrum detection capabilities. It’s a plug-in model, so it’s more suitable for land-based operations.