Fingerprint Access Control finger/ RFID/PIN biometric door access F18 Biometric Building Management System ZK F18 Biometric Fingerprint Access Control Time Attendance Security System FAC-F18 Fingerprint Access Control Reader The FAC-F18 features the fastest commercial-based fingerprint matching algorithm and ZK high-performance, high-image quality optical fingerprint sensor. The device offers the flexibility to be installed standalone or with any third party panel that supports 26-bit WG