Coded lock is a security device that utilises a pre-set numerical or alphanumeric code to grant access without traditional mechanical keys. These locks often integrate a keypad or dial where the user inputs a unique combination to operate the locking mechanism. Designed for heightened security, coded locks eliminate the risk of physical key duplication and provide the option to easily reset or change the access code, enhancing control over entry permissions.
Typically employed in residential, commercial, and institutional settings, these locks vary in complexity from simple push-button models to sophisticated electronic systems with features like backlit keypads, audit trails, and connectivity to broader security networks. Some advanced versions also include biometric components, such as fingerprint recognition, further securing access points by linking entry to unique personal identifiers. The flexibility and adaptability of coded locks make them a prevalent choice for securing sensitive areas, offering both convenience and robust protection against unauthorised access.