Button function: Configured with 14 buttons, including 10 numeric keys and 4 alphabet keys.
Special Key - 'C' Key, used to erase incorrect input, easy to operate.
Digital Key - Except for the 'C' key, the remaining 13 keys can be used to set the password by selecting 4 to 7 of them.

Password Change Function: Based on customer's needs, the password can be changed again, with a maximum of 7 keys allowed, and keys cannot be repeated.

Safety Features: This product is designed with precision and has a strict structure, with all mechanical operations. It has passed strict testing, with the key-operated lock functioning normally after 50,000 uses. It offers security and confidentiality.

Applicable functions: Suitable for any door opening direction and use place, with high adaptability. Widely used in family doors, doorbells, garage doors, offices, warehouses, dormitories, safe boxes, etc.

This product is easy to install, allowing consumers to install it themselves. Quality assurance, almost never fades.