General description The CCYKXA Mechanical Code Lock is a digital keyless door lock designed for enhanced security and convenience. This password security lock is ideal for both home and office use, offering a reliable alternative to traditional keys. Technical specifications Type: Mechanical code lock Password length: 4-6 digits Material: High-quality zinc alloy Waterproof: Yes Installation Includes screw kit and English manual Suitable for both interior and exterior doors Usage Single set of passwords with non-repeating numbers Example of password usage: Setting 123456 can be opened with 231456 Ideal for office doors, interior doors, rental doors, and composite doors