For most organizations in Bangladesh, attendance tracking and physical access control are managed as two separate problems: a fingerprint machine that logs who came in and out, and a door lock or security guard that decides who is allowed to walk through. Running these as disconnected systems means duplicated hardware, duplicated data entry, and gaps that are only noticed after a payroll dispute or a security incident. The pairing of eHajira with the ZKTeco F22 WiFi access control terminal was built to close exactly that gap: one device at the door captures both who is entering the building and when they arrived for work, and that single data stream flows directly into eHajira for attendance, leave reconciliation, and payroll processing.

This article looks at what the ZKTeco F22 offers as a hardware terminal, how it integrates with eHajira's HR and payroll platform, and why this combination has become a preferred choice for Bangladeshi offices, factories, and retail operations that want dependable access control without adding a second, disconnected attendance system.

Many small and mid-sized organizations in Bangladesh still operate with a security guard managing entry, a separate biometric or card-based attendance machine for HR purposes, and a payroll process built around whatever data can be exported from that machine, usually into an Excel sheet. This arrangement creates several recurring problems:

•        Attendance data has to be manually exported and reconciled with payroll each month, introducing delays and transcription errors.

•        Physical access is not tied to employment status, so a terminated employee's access card or fingerprint may remain active well after their last working day.

•        There is no single, auditable record connecting who physically entered a facility with who was paid for that day's work — a gap that matters during compliance audits or internal investigations.

•        Multiple entry points or shifts require multiple devices that do not share data with each other or with payroll.

A unified terminal-plus-software approach removes each of these failure points by ensuring that the same event — an employee presenting their fingerprint or card at the door — simultaneously serves as both the access control decision and the attendance record that eHajira uses for payroll.

The ZKTeco F22 is a compact fingerprint and access control terminal designed for standalone or networked use at building or office entry points. It is positioned as an entry-to-mid-range device suitable for organizations that need reliable biometric verification without the cost of an enterprise-grade multi-door security system. Typical characteristics of the F22 and comparable ZKTeco terminals in this class include:

•        Fingerprint-based verification with supplementary support for ID/IC card credentials, allowing organizations to use either or both methods depending on their security policy.

•        A built-in relay output that can directly control an electronic door lock, door strike, or magnetic lock, allowing the device to function as an access control unit and not just an attendance logger.

•        WiFi connectivity in addition to standard TCP/IP (Ethernet) and USB connections, which simplifies installation in locations where running a network cable to the door is impractical.

•        A colour TFT display and simple keypad or touch interface for enrollment, verification feedback, and menu navigation.

•        Onboard storage for a substantial number of fingerprint templates and transaction logs, sufficient for small-to-mid-sized offices and single-site factories.

•        Support for ZKTeco's ADMS (Automatic Data Master Server) push protocol, which allows the device to automatically transmit attendance and access logs to a central server over the network, rather than requiring someone to manually download logs via USB.

Because it supports both access control (via the relay and door lock integration) and attendance logging in the same unit, the F22 is well suited to single-entry offices, small factory gates, or branch locations where installing two separate systems would be unnecessary and costly.

1. Automatic Attendance Sync

Once configured, the F22 pushes attendance transactions — fingerprint or card scans at entry and exit — to eHajira automatically over WiFi, using the device's networked communication capability. HR staff do not need to manually export attendance logs or plug the device into a computer; the data appears in the eHajira dashboard on its own schedule, typically within minutes of the actual scan.

2. Unified Access and Attendance Record

Because the same fingerprint scan that unlocks the door also generates the attendance record used by eHajira, there is no possibility of a mismatch between who physically entered the premises and who is recorded as present for payroll purposes. This is particularly valuable for organizations that need to demonstrate accurate, tamper-resistant attendance records during labor compliance audits.

3. Real-Time Employee Status Enforcement

When an employee resigns, is terminated, or goes on extended leave, their access credentials can be deactivated centrally in eHajira, and this status can be reflected at the F22 terminal, ensuring that physical access is automatically tied to current employment status rather than requiring a separate, manual step to disable a departing employee's fingerprint or card.

4. Multi-Shift and Multi-Door Support

Organizations with rotating shifts or multiple entry points can deploy multiple F22 units, each reporting into the same eHajira account. This allows a factory with a main gate and a staff entrance, or an office with multiple floors, to consolidate all attendance and access data into a single payroll-ready record, rather than juggling logs from several independent devices.

5. Overtime and Late-Entry Flagging

Because entry and exit times are captured precisely at the point of access, eHajira can automatically flag late arrivals, early departures, and overtime hours based on configured shift rules, rather than relying on HR staff to manually review timestamps against a roster.

Organizations typically choose between three approaches when setting up entry-point attendance and access control. The comparison below outlines how these compare when paired with eHajira as the payroll and HR platform.

The ZKTeco F22 and eHajira pairing is particularly well suited to:

•        Small and mid-sized offices with a single or limited number of entry points that want access control tied directly to attendance and payroll.

•        Retail outlets and branch locations where a compact, WiFi-enabled device avoids the cost and disruption of running network cabling.

•        Factories and warehouses with a defined staff entrance where management wants assurance that door access and shift attendance are the same verified event.

•        Organizations replacing a manual guard register or an outdated standalone biometric device that does not communicate with payroll software.

Larger, multi-building campuses with complex access hierarchies (multiple security zones, visitor management, vehicle access) may eventually require a more extensive access control architecture, but for the common case of controlling and recording entry at one or a handful of doors, the F22 offers a proportionate, cost-effective solution.

Deploying the F22 with eHajira typically follows a straightforward sequence. The device is mounted at the entry point and connected to power and, where used, the electronic door lock or strike via its relay output. WiFi credentials are configured so the terminal can communicate with the network without a dedicated Ethernet run to the door. Employee fingerprints (and/or ID cards) are then enrolled directly at the device or via an enrollment station, and employee records are matched to corresponding profiles in eHajira. Once the device is registered to push data via ADMS, attendance and access events begin flowing into eHajira automatically, and administrators can configure shift rules, grace periods, and overtime thresholds to match the organization's existing HR policy. As with any new attendance hardware, running the system in parallel with the previous process for one pay cycle is a sound way to confirm data integrity before fully retiring the old method.

WiFi-based devices depend on stable network coverage at the installation point, so it is worth confirming signal strength at the door location before installation, particularly in factory environments with metal structures that can weaken wireless signals. Where WiFi coverage is inconsistent, the F22's wired TCP/IP connection remains available as a fallback. Routine maintenance is limited mainly to keeping the fingerprint sensor clean and ensuring firmware stays current, both of which are standard practice for biometric terminals in any operating environment.

Attendance tracking and door access control have traditionally been treated as separate purchases and separate systems, even though they describe the same underlying event: an employee arriving at work. Pairing the ZKTeco F22 with eHajira removes that artificial separation, giving Bangladeshi businesses a single, WiFi-enabled terminal that verifies identity, controls the door, and feeds accurate, automatic attendance data directly into payroll. For organizations still relying on a manual guard log, a standalone biometric device, or disconnected security and HR systems, this integration offers a practical, cost-effective way to bring accuracy, accountability, and centralized control to one of the most basic — and most consequential — daily events in any workplace: the moment an employee walks through the door.

1. What is the ZKTeco F22 used for?

The ZKTeco F22 is a fingerprint and card-based terminal that verifies identity at an entry point, controls an electronic door lock through its relay output, and logs attendance transactions — combining physical access control and attendance capture in a single device.

2. Does the F22 support WiFi, or does it need a wired network connection?

The F22 supports WiFi connectivity in addition to standard wired TCP/IP and USB connections, which simplifies installation at doors where running network cabling would be impractical.

3. How does the F22 connect to eHajira?

The device pushes attendance and access transactions to eHajira automatically over the network using ADMS (Automatic Data Master Server) communication, so records appear in the eHajira dashboard without manual export or USB transfer.

4. Can the F22 control a door lock directly, or do we need separate access control hardware?

The F22 includes a built-in relay output that can directly drive an electronic door lock or strike, allowing it to function as a standalone access control unit at a single entry point without additional controller hardware.

5. What happens when an employee leaves the company?

Employee status can be updated centrally in eHajira, and access credentials tied to that employee can be deactivated so that door access is automatically aligned with current employment status.

6. Can we use both fingerprint and card credentials on the same device?

Yes, the F22 supports fingerprint verification alongside ID/IC card credentials, allowing organizations to choose either method or use both depending on their security policy.

7. Is the F22 suitable for factories with large workforces?

The F22 is well suited to a defined staff entrance in factories and warehouses; very large workforces or multiple simultaneous entry points may require deploying several F22 units, each reporting into the same eHajira account for centralized data.

8. How does this setup help with overtime calculation?

Because entry and exit times are captured precisely at the point of access, eHajira can automatically flag late arrivals, early departures, and overtime hours against configured shift rules, without manual timestamp review.

9. What happens if WiFi coverage at the door is weak?

The F22 also supports a standard wired TCP/IP connection, which can be used as a fallback in locations where wireless signal strength is inconsistent, such as certain factory environments with significant metal structures.

10. Does this integration help with labor compliance audits?

Yes. Because the same verified event generates both the access control decision and the attendance record, the resulting data in eHajira provides a centralized, time-stamped audit trail that supports labor compliance and buyer social-compliance reviews.

11. How many entry points can be managed under one eHajira account?

Multiple F22 units can be deployed across different doors, gates, or floors, with all of them reporting into the same eHajira account, allowing centralized management of attendance and access across a site.

12. Is a parallel run recommended before fully switching to this system?

Yes. As with any new attendance hardware, running the F22 and eHajira alongside the existing process for one payroll cycle is recommended to confirm data accuracy before retiring the previous manual or standalone system.