Main Features: ? Patented OneTouchTM auto fingerprint verification. ? LED display ? Three independent unlocking:Fingerprint, Code or Mechanical Key. ? Universal hand mechanism for Left or Right hand door easy installation. ? Administrator controlls easily adding or deleting other individual users. ? Lock/Unlock from Inside and Outside mechanically with Patented Secure Deadbolt. ? Back-lit keypads for easy access in the dark ? Low battery alert ? Passage mode: Convenient passage mode enables door open all the time ? High quality latch with standard 5-1/2 spacing between the latch and deadbolt ? Optional water-protection set for outdoors ? Battery saving design which doubles the battery lifetime of other similar SPECIFICATIONS Fingerprint Sensor 500 DPI optical sensor Verification Time <1 sec Verification Type 1 to N FAR (False Accept Rate) < 0.0001% FRR (False Reject Rate) < 0.1% Password length 6 - 14 digits Power Supply 4* 1.5V AA alkaline batteries Battery Life Span 1 -2 years (about continuously operate 20,000 times) Emergency Key Override 8 pin key cylinder Operating Humidity 10%-80% Operating Temperature For fingerprint entry: -10℃～+65℃ (-14℉～+149℉) For password entry: - 40℃～+65℃ (-104℉～+149℉)