ZKTeco K40 USB Biometric Fingerprint Time Attendance System Built-in Battery

ZKteco K40 Access Control TCP/IP Clock Biometric Fingerprint Time Attendance

ZKteco K40 ID/IC Biometric Fingerprint Time Attendance System Built in Battery

ZKteco K40 TCP/IP USB Biometric Fingerprint Time Attendance System W/ Battery

ZKTeco K40 ID IC TCP/IP Biometric Fingerprint Time Clock Access Control Terminal

ZK K40 Built-in Battery TCP/IP USB Clock Biometric Fingerprint Time Attendance

ZKteco K40 Access Control Built-in Battery TCP/IP Fingerprint Time Attendance

ZKTeco FA200 TCP/IP USB Clock Biometric Fingerprint Time Attendance System