ZKTeco F21 Fingerprint Time Attendance and Access Control Terminal

The ZKTeco F21 is a professional fingerprint time attendance and access control terminal engineered to provide secure employee attendance tracking and reliable door access management. Powered by advanced SilkID fingerprint technology, the F21 accurately recognizes dry, wet, and rough fingerprints while offering live finger detection for enhanced security. With multiple verification methods, built-in access control features, and flexible communication options, the F21 is an ideal solution for offices, schools, hospitals, hotels, factories, warehouses, banks, and government institutions.

Product Features

Advanced SilkID Fingerprint Technology

Utilizes ZKTeco’s SilkID fingerprint sensor to deliver fast, accurate recognition while effectively reading dry, wet, and rough fingerprints.

Live Finger Detection

Enhances security by distinguishing genuine fingerprints from fake or copied fingerprints, reducing the risk of unauthorized access.

Time Attendance and Access Control

Combines employee attendance management with single-door access control, eliminating the need for separate devices.

Multiple Authentication Methods

Supports fingerprint verification, password authentication, and optional RFID card verification for flexible access control.

High User Capacity

Stores up to 3,000 fingerprint templates, 5,000 RFID cards (optional), and 100,000 transaction records, making it suitable for businesses of various sizes.

User-Friendly Color Display

Features a 2.4-inch TFT color LCD for easy user enrollment, attendance management, and system configuration.

Multiple Communication Options

Supports TCP/IP, RS232, RS485, USB Host, and optional Wi-Fi for flexible installation and efficient data transfer.

Comprehensive Access Control Features

Supports electric locks, exit buttons, door sensors, alarms, Anti-Passback, doorbell integration, and Wiegand input/output for enhanced security.

Optional Camera Function

Supports optional photo capture and Photo ID functionality for improved attendance verification and user identification.

Reliable and Durable Performance

Built with industrial-grade components to provide dependable operation in high-traffic commercial environments.

Product Specifications

• Brand: ZKTeco
• Model: F21
• Product Type: Fingerprint Time Attendance and Access Control Terminal
• Display:4-inch TFT Color LCD
• Fingerprint Capacity: 3,000 Templates
• Card Capacity: 5,000 RFID Cards (Optional)
• Transaction Capacity: 100,000 Records
• Fingerprint Sensor: SilkID Optical Sensor
• Algorithm Version: ZKFinger VX10.0
• Authentication Methods: Fingerprint, Password, RFID Card (Optional)
• Communication: TCP/IP, RS232, RS485, USB Host, Optional Wi-Fi
• Wiegand Interface: Input and Output
• Access Control Interface: Electric Lock, Door Sensor, Exit Button, Alarm, Doorbell
• Power Supply: 12V DC, 3A
• Operating Temperature: 0°C to 45°C
• Operating Humidity: 20%–80% RH (Non-Condensing)
• Dimensions:5 × 78 × 19.4 mm
• Applications: Offices, Commercial Buildings, Schools, Universities, Hospitals, Hotels, Banks, Warehouses, Factories, Government Institutions, and Employee Time Attendance & Access Control Systems.