The Dahua ASC1204C-D is a Four Door Two-Way Access Controller designed for comprehensive access management. It controls access for up to four doors from both entry and exit points, enhancing security and flexibility. Key features include real-time monitoring, alarm linkage, and anti-passback functionality. The controller integrates seamlessly with card readers, biometric devices, and management software, making it ideal for use in offices, commercial buildings, and other secure facilities.