The ZKTeco K40 is a compact and reliable fingerprint time attendance and access control terminal designed for offices, factories, schools, and small to medium-sized businesses. Featuring a high-precision optical fingerprint sensor and a user-friendly 2.8-inch TFT display, it allows employees to quickly record attendance while providing administrators with accurate workforce management tools.
Key Features
- High-precision optical fingerprint recognition
- Fingerprint capacity up to 1000 templates
- Optional RFID card authentication
- Transaction log storage up to 80,000 records
- 2.8-inch TFT color screen with user-friendly interface
- Fast verification speed under 0.5 seconds
- TCP/IP and USB Host communication for easy data transfer
- Built-in backup battery to operate during power failure
- Supports Web Server, SMS alerts, and self-service query
- Compatible with ZKTime attendance management software
- External bell and simple access control support
Technical Specifications
| Display | 2.8-inch TFT Screen |
| Fingerprint Capacity | 1000 (Up to 2000 without SSR) |
| ID Card Capacity | 1000 (Optional) |
| Record Capacity | 80,000 Logs |
| Verification Speed | ≤ 0.5 seconds |
| Communication | TCP/IP, USB Host |
| Software | ZKTime.net Attendance Software |
| Standard Functions | Web Server, SMS, Work Code, Self-Service Query, DST, Schedule Bell |
| Power Supply | DC 12V 1.5A |
| Operating Temperature | 0°C – 45°C |
| Operating Humidity | 20% – 80% |
| Dimensions | 184 × 136 × 37.6 mm |
The ZKTeco K40 fingerprint attendance system is an ideal workforce management solution for organizations that need accurate attendance tracking and basic access control. Its compact design, reliable biometric technology, and easy data management through TCP/IP or USB make it one of the most popular attendance machines for small and medium businesses.