Fingerprint Time Attendance ZKS-T1 Brief Introduction 1. Users In/Out records ... Keypad: Total 16 buttons (6 Function Keys and 1 Access Key) 6. Fingerprint Capacity: 3,000 7. Transaction Records: 80,000 8 ... TCP/IP, RS485, USB, GPRS(optional) 16. Separated Time Attendance & Separated Access Control: Support 17. Access Control: Multiple Unlock Periods, Unlock Combinations, Dismantle Proof Alarm, Duress ...