1. Designed by Germany designer ,Luxury ,firmness and elegance. 2. Free handles design ,Anti-violence function ,well protect to mechanical structure. 3. Modularization Structure , Dampproof design. 4. Dormancy function :3 times incorrect password will lead to System Dormancy. After 3 minutes ,the System will restarted. 5. Reset function :In the unusual time ,press the RESET button ,restart the module. 6. Low voltage warning .When in low voltage, warning will be sounded .After the warning ,the lock can be used 200 time . 7. Backup Energy. When in low voltage,can use 9 V battery connect the backup energy port. ,and then use fingerprint or password to unlock the lock. 8. Set to passage mode at any time. suitable for meeting room and office use.