Biometric Door Access Control System is a secure and efficient solution that uses unique human characteristics such as fingerprints, facial features, iris patterns, or palm veins to authenticate and grant access to authorized individuals. These systems typically include a biometric reader or scanner, an access control panel or standalone controller, electromagnetic or smart locks, exit buttons or sensors, a power supply with battery backup, and software for user enrollment and real-time management. Advanced systems also support multi-factor authentication through RFID cards, PIN codes, or mobile credentials, and offer features like real-time monitoring, event logs, and integration with time attendance and CCTV surveillance. Widely used in offices, factories, data centers, hospitals, and residential buildings, biometric access systems provide high-level security, eliminate the risks of lost keys or shared codes, and ensure fast, contactless, and reliable access control.