The Smart Door Lock offers five access methods: biometric fingerprint, passcode entry, RFID card, physical key, and mobile app control. It features a durable metal housing, a high-sensitivity fingerprint sensor, and local alarm functions triggered by tampering or repeated failed attempts. The system includes customizable PIN codes and card management, with manual override via mechanical key for redundancy.

Powered by four AA batteries, the lock supports long-term autonomous operation, with a USB port available for emergency power. The device is suitable for a wide range of standard wooden or metal doors and is quick to install without requiring structural door modifications. Its internal control logic enables efficient local access control and user management without external system dependencies.