Zkteco ZK F21 Fingerprint time attendance and access control terminal

Dual-Purpose Biometric Solution for Modern Businesses

Revolutionize your workforce management and security with the ZKTeco ZK F21 Fingerprint Time Attendance and Access Control Terminal – a powerful 2-in-1 biometric solution that combines precise employee attendance tracking with advanced access control. Perfect for businesses seeking to eliminate buddy punching, automate payroll processing, and secure restricted areas.

Key Features

Advanced Fingerprint Recognition Technology
Equipped with high-precision optical fingerprint sensor that delivers lightning-fast identification in under 1 second. The advanced algorithm ensures accurate authentication even with dry, wet, or worn fingerprints.

Dual Functionality
Combines time attendance and access control in a single, cost-effective device. Track employee clock-ins/clock-outs while simultaneously managing door access permissions for enhanced security and efficiency.

Large Storage Capacity
Store up to 3,000 fingerprint templates and 100,000 transaction records. Ideal for medium to large organizations with extensive workforce and high-traffic requirements.

User-Friendly 2.4″ TFT Display
Clear, easy-to-read color screen provides instant visual feedback during user authentication. Intuitive menu navigation makes enrollment and daily operation simple for all users.

Multiple Verification Modes
Supports fingerprint-only, RFID card-only, or combination authentication for flexible security levels. Accommodate users with difficult-to-read fingerprints using alternative verification methods.

RFID Card Reader Integration
Built-in EM or Mifare card reader (125KHz/13.56MHz) provides backup authentication options. Issue access cards to visitors, contractors, or employees who prefer card-based authentication.

Comprehensive Connectivity Options
Connect via TCP/IP, USB, or RS485 for seamless integration with existing systems. Network connectivity enables real-time data synchronization and remote management across multiple locations.

Standalone or Network Operation
Functions independently without a computer or integrates with ZKTeco attendance software and access control systems for centralized workforce management.

Built-in Access Control Features
Direct relay output for door lock control. Compatible with electric strikes, magnetic locks, and electronic bolts. Supports door sensor, exit button, and alarm integration.

Intelligent Scheduling
Set up multiple shift schedules, overtime rules, and break times. Automatically calculate work hours, late arrivals, early departures, and absences for accurate payroll processing.

Anti-Passback Function
Prevent time theft by ensuring employees can’t pass credentials to unauthorized individuals. Maintains strict entry/exit protocols for enhanced security.

Technical Specifications

Fingerprint Capacity: 3,000 templates
Card Capacity: 3,000 cards (optional)
Transaction Capacity: 100,000 records
Identification Speed: <1 second
Display: 2.4″ TFT Color Screen
Communication: TCP/IP, USB-Host, RS485
Card Technology: EM (125KHz) or Mifare (13.56MHz)
Verification Method: Fingerprint, Card, Fingerprint+Card
Access Control: Built-in relay output
External Interfaces: Door sensor, exit button, alarm, auxiliary output
Operating Temperature: 0°C to 45°C
Operating Humidity: 20% to 80%
Power Supply: DC 12V/3A
Dimensions: Compact wall-mount design

Perfect For

Corporate Offices
Automate attendance tracking, eliminate manual timesheets, and secure conference rooms, server rooms, and executive areas.

Manufacturing Facilities
Track shift workers accurately, manage multiple departments, and control access to production floors and hazardous areas.

Healthcare Facilities
Monitor staff attendance across departments, secure medication storage, and restricted patient areas while maintaining HIPAA compliance.

Retail Stores
Prevent employee time theft, track part-time worker hours, and control access to stockrooms and cash offices.

Educational Institutions
Record teacher and staff attendance, manage access to labs, equipment rooms, and administrative offices.

Hospitality Industry
Track housekeeping and service staff, manage multiple shift schedules, and secure back-of-house areas.

Construction Sites
Monitor contractor and worker attendance, track labor hours for billing, and manage site access for safety compliance.

Small to Medium Businesses
Cost-effective solution for businesses with 50-300 employees seeking to streamline HR operations and enhance security.

Key Benefits

Eliminate Buddy Punching
Biometric authentication ensures only the actual employee can clock in or out. Stop time theft and save thousands in payroll costs annually.

Automate Payroll Processing
Export attendance data directly to payroll systems. Eliminate manual timecard entry, reduce errors, and save HR staff countless hours each month.

Real-Time Attendance Monitoring
View who’s in the office, who’s late, and who’s absent in real-time. Make informed decisions with instant access to workforce data.

Enhance Security
Replace traditional keys and access cards with biometric authentication. Fingerprints can’t be lost, shared, or stolen, ensuring only authorized personnel access restricted areas.

Comprehensive Reporting
Generate detailed attendance reports including work hours, overtime, absences, tardiness, and early departures. Export data for analysis and compliance documentation.

Reduce Administrative Overhead
Automate time tracking and access management tasks. Free up HR and security staff to focus on strategic initiatives rather than manual processes.

Ensure Compliance
Maintain accurate records for labor law compliance, audit requirements, and dispute resolution. Tamper-proof biometric data provides irrefutable attendance evidence.

Scalable Solution
Start with a single terminal and expand to multiple locations. Centralized software manages unlimited devices and employees across your organization.

Software Features

ZKTeco Attendance Management Software (Included)

• Employee database management
• Shift scheduling and overtime rules
• Automated attendance calculations
• Customizable report generation
• Multi-site management
• Leave and absence tracking
• Integration with payroll systems
• Real-time monitoring dashboard
• Alert notifications for exceptions
• Data backup and security

Advanced Functions

Bell Scheduling
Program automatic bell or announcement triggers for shift changes, breaks, and emergency notifications.

Work Code Management
Track employee activities beyond simple clock-in/out. Record job codes, project assignments, and task-specific time allocation.

Photo Verification
Optional photo capture during authentication provides visual confirmation and additional security layer.

Multi-Language Support
Interface available in multiple languages to accommodate diverse workforces and global operations.

Self-Service Functions
Allow employees to view their attendance records, remaining leave balances, and work schedules directly at the terminal.

Installation & Setup

Easy wall-mount installation with straightforward wiring connections. The included software features intuitive setup wizards that guide you through:

• Employee enrollment
• Fingerprint registration
• Access permission assignment
• Shift schedule configuration
• Network setup
• Door lock integration

Professional installation services available for multi-device deployments.

What’s Included

• ZKTeco F21 Fingerprint Terminal
• Power Adapter (DC 12V/3A)
• Mounting Bracket and Hardware
• USB Cable
• Installation Manual
• Attendance Management Software CD
• Quick Start Guide
• Warranty Certificate

Integration Capabilities

Compatible With:

• ZKTeco Access Control Panels
• Third-party Access Control Systems (via Wiegand)
• Popular Payroll Software (ADP, QuickBooks, SAP, etc.)
• HR Management Systems
• Building Management Systems
• Existing Network Infrastructure

Return on Investment

Calculate Your Savings:

• Eliminate 2-5% payroll losses from buddy punching
• Save 10+ hours monthly on manual timesheet processing
• Reduce payroll errors by up to 90%
• Cut key replacement and rekey costs
• Typical ROI achieved within 6-12 months

Why Choose ZKTeco F21?

Proven Reliability
ZKTeco is a global leader in biometric security and time attendance solutions, trusted by over 1 million businesses worldwide across 180+ countries.

Advanced Algorithm
Proprietary fingerprint recognition algorithm delivers industry-leading accuracy with low false acceptance and rejection rates.

Dual Purpose Value
Get two systems for the price of one. Unified time attendance and access control reduces hardware costs and simplifies management.

Enterprise-Grade Performance
Professional-quality features at an affordable price point. Delivers reliability and functionality comparable to premium systems costing significantly more.

Comprehensive Support
Extensive documentation, video tutorials, free software updates, and responsive technical support ensure smooth implementation and operation.

Future-Proof Technology
Regular firmware updates add new features and improvements. Expandable architecture grows with your business needs.

Technical Support & Training

• Free technical support via phone, email, and online chat
• Comprehensive user manuals and video tutorials
• Remote assistance for troubleshooting
• Training resources for administrators
• Software updates and patches
• Active user community and knowledge base

Warranty & Service

Backed by manufacturer warranty covering hardware defects and malfunctions. Extended warranty options available for enhanced protection and peace of mind.

Transform Your Workforce Management Today

Stop losing money to time theft and administrative inefficiencies. The ZKTeco F21 delivers accurate time tracking, enhanced security, and streamlined workforce management in one powerful, affordable package.

Order now and experience the benefits of automated biometric time attendance and access control!

Use Case Scenarios

Scenario 1: Small Manufacturing Company
A 75-employee manufacturing facility implemented the F21 to track shift workers and control production floor access. Result: Eliminated 3% payroll loss from buddy punching, saved 15 hours monthly on timesheet processing, and improved security compliance.

Scenario 2: Multi-Location Retail Chain
A retail chain with 8 stores deployed F21 terminals at each location. Centralized software provides corporate HR with real-time attendance across all sites, automated payroll integration, and consistent access control policies.

Scenario 3: Healthcare Clinic
A medical clinic uses the F21 to track nursing staff attendance across multiple shifts while restricting medication storage access to authorized personnel only. HIPAA-compliant audit trails and tamper-proof records ensure regulatory compliance.

Customer Testimonials Framework

“The ZKTeco F21 has transformed our payroll process. We’ve eliminated buddy punching completely and saved over 10 hours monthly on attendance processing. The ROI was realized in just 8 months!”
— HR Manager, Manufacturing Company

“Easy to set up, reliable performance, and the dual functionality gives us tremendous value. Our employees adapted quickly, and we appreciate the detailed reporting capabilities.”
— Office Administrator, Professional Services Firm

“Excellent solution for our multi-site operations. The network connectivity allows us to monitor attendance across all locations in real-time. Highly recommended!”
— Operations Director, Retail Chain