Common Features:

1. Biometric Verification:
   • Fingerprint recognition
   • Face recognition
   • Palm vein recognition
2. RFID Card Reader:
   • Proximity card reader
   • Supports various card types and frequencies
3. Display:
   • LCD or TFT display for user interface
4. Storage Capacity:
   • Large transaction storage capacity
   • Stores thousands of fingerprints, faces, and card details
5. Communication:
   • TCP/IP for network connectivity
   • USB port for data transfer and manual data download
   • Optional Wi-Fi connectivity
6. Verification Speed:
   • Fast fingerprint or face verification speed (usually <0.8 second)
7. Identification Speed:
   • Fast user identification speed (usually <1.5 seconds)
8. Face Recognition Speed:
   • Fast face recognition speed (usually <1.0 second)
9. Power Supply:
   • DC power supply
   • Backup battery support
10. Software Compatibility:
    • Compatible with time attendance software for data management and reporting
11. Alarm Function:
    • Built-in buzzer for notifications and alarms
12. Multi-language Support:
    • Supports multiple languages for user interface
13. Operating Temperature and Humidity:
    • Wide range of operating temperature and humidity tolerance
14. Access Control Interface:
    • Supports electric lock and door sensor for access control
15. User Capacity:
    • Supports a large number of users (employees)
16. Data Backup:
    • Supports data backup and restore functionality
17. Real-time Monitoring:
    • Real-time monitoring of attendance data and device status
18. Anti-passback Feature:
    • Prevents users from passing their credentials to another person