The SK-2611-SFSQ Fingerprint Reader and Keypad is an indoor keypad that uses either a fingerprint or a user code to activate the relay output. It supports up to 1,000 users; 500 fingerprints and 500 user codes. With a fingerprint identification time of less than a second, the Fingerprint Reader and Keypad is a fast and secure way to control an access point. The Fingerprint Reader and Keypad is equipped with a 500DPI optical fingerprint reader that illuminates when a finger is present. It has a false acceptance rate of 0.0001% and a false rejection rate of 0.01%. Having the ability to choose between fingerprints and user codes makes this unit a versatile solution for your security needs.