The Bioteknix InBio-160 Pro Plus is a single-door IP-based access control system designed to regulate and secure entry points using multiple authentication methods. The system integrates biometric identification, RFID card verification, password input, and dynamic QR code scanning to authenticate users reliably. It supports TCP/IP and RS-485 communication, enabling centralized management and real-time monitoring of access events. With storage for a large number of users, fingerprints, and facial templates, the system can scale for offices, residential complexes, and small industrial facilities. Advanced security features such as AES-256 encryption and HTTPS/TLS 1.2 communication protect data from unauthorized access. Functionality such as anti-passback, door interlock, holiday scheduling, and event logging ensures operational efficiency and safety. The InBio-160 Pro Plus exemplifies modern access control theory by combining identification, authentication, secure data management, and networked control in a compact, reliable platform.