Cassida Uno Infrared Counterfeit Detector From America's number one Brand in cash handling, the Cassida Uno is the only IR detector you need. Uno detects state-of-the-art Infrared (IR) security markings, invisible to the naked eye. IR is considered currencys most advanced counterfeit security feature and has yet to be counterfeited. No waiting - UV markings show up the instant theyre place under the large 4 LCD monitor. Feel confident by simply looking for stripes. See them? the bill is legitimate. No stripes? the bill is suspect. Uno can protect your business and your employees from taking suspect or counterfeit bills