The Safescan 185-S uses the latest counterfeit detection technology to check for seven advanced security features built into today’s currencies: infrared ink, magnetic ink, metallic thread, color, size, thickness and watermark. The technology inside the 185-S is so reliable it will also detect double bills, half bills and even the superdollar, the most sophisticated counterfeit banknote ever created. Its proven 100% accuracy will eliminate any doubts about whether the bill you’re holding is genuine or counterfeit.