The Model 2600 provides the highest degree of reliability in the industry with a combination of custom designed sensors integrated into a single unit. The result provides, a unit which is capable of detecting even the most sophisticated counterfeit notes, including previously undetectable "Supernotes". In tests performed with 100 of the most sophisticated counterfeit "Supernotes" the 2600 identified 100% of these notes as counterfeit. The Model 2600's combination of unique sensors ensures extreme accuracy and reliability in detecting counterfeit currency. Ultrascan is simple to operate providing the user with a green light for genuine notes and a red light with a buzzer to identify suspect notes. Just insert a note and in less than a second you will have an answer.