1. Simple operation, similar to dialing an old telephone. Single-axis operation: turn clockwise half a turn to enter the password, reverse half a turn to unlock. Short operation time.
2. Large password capacity: Over 3.25 million possible passwords, all permutations, allowing for free selection without restrictions.
3. Automatically destroys the password upon unlocking, leaving no trace. Password guessing is impossible.
4. Password length can be freely set, from simple to complex. Maximum 6 digits.
5. Fully mechanical structure, requires no power supply, suitable for various harsh environments.
6. Compact size, similar to ordinary door locks.
7. Suitable for use in vault doors, gun cabinets, safes, and locking mechanisms in important locations.
