ZKTeco F21 Biometric Reader

The ZKTeco F21 Biometric Reader is a professional fingerprint time attendance and access control terminal designed to provide secure and efficient user authentication. Featuring an advanced SilkID fingerprint sensor, a 2.4-inch TFT color display, and multiple verification methods, the F21 delivers fast and accurate identification even for dry, wet, or rough fingerprints. It supports access control, employee attendance management, and optional RFID card authentication, making it an ideal solution for offices, schools, factories, hospitals, and commercial facilities.

Product Features

Advanced SilkID Fingerprint Sensor

Equipped with an advanced SilkID fingerprint sensor that accurately recognizes dry, wet, and rough fingerprints while supporting live finger detection for enhanced security.

2.4-Inch TFT Color Display

Features a bright 2.4-inch TFT LCD color screen for easy navigation, user interaction, and system configuration.

Multiple Verification Methods

Supports fingerprint authentication with optional RFID card verification, providing flexible access control options.

High User Capacity

Stores up to 3,000 fingerprints, 5,000 optional cards, and 100,000 transaction records for efficient attendance and access management.

Fast Identification

Powered by the ZKFinger V10.0 algorithm for quick and accurate fingerprint matching.

Integrated Access Control

Supports electric locks, door sensors, exit buttons, alarms, and doorbells for complete access control functionality.

Multiple Communication Interfaces

Provides TCP/IP, USB Host, and RS232/RS485 communication for easy integration with existing security systems.

Built-In Auxiliary Input

Includes an auxiliary input for connecting external detectors or emergency devices.

Reliable Performance

Designed for continuous operation with stable performance in office and industrial environments.

Easy Installation

Compact wall-mounted design allows for quick installation and convenient daily operation.

Product Specifications

• Brand: ZKTeco
• Model: F21
• Product Type: Biometric Time Attendance and Access Control Terminal
• Display: 2.4-inch TFT LCD Color Screen
• Fingerprint Capacity: 3,000
• Card Capacity: 5,000 (Optional ID/IC Cards)
• Transaction Capacity: 100,000 Records
• Fingerprint Sensor: SilkID / Z-ID Sensor
• Fingerprint Algorithm: ZKFinger V10.0
• Communication: TCP/IP, USB Host, RS232, RS485
• Wiegand Interface: Input and Output
• Auxiliary Input: 1
• 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% to 80%
• Installation: Wall-Mounted
• Applications: Offices, schools, factories, hospitals, commercial buildings, and access control systems.