The combination of a U.are.U 4000B Fingerprint Reader with the DigitalPersona IDentity Engine produces an unmatched ability to recognize even the most difficult fingerprints. A user simply places a finger on the reader window, and the reader quickly and automatically captures and encrypts the fingerprint image before sending it to the DigitalPersona IDentity Engine for verification.ĭigitalPersona products utilize optical fingerprint scanning technology for superior image quality and product reliability.