Electronic Digital Cam Lock

1. Low voltage alarm: voltage lower than 2.5V, every time the lock is opened, there will be sound and light prompt.
2. Working mode: Fixed.
3. External power supply: When the internal battery is not charged, external power supply can be used to open the lock.
4、Electronic key emergency unlocking.
5、Code skipping function: one-time emergency password, immediately expire after one use, the password will be initialized back to the initial password, fingerprint information will be cleared.
6、The management/user password is valid 4~8 bits, beyond or not enough will fail to modify.