eSSL K21 PRO

RFID & Fingerprint Time Attendance System

Compact. Accurate. Reliable. A sophisticated biometric device designed for small to medium-sized businesses — featuring a 500 DPI optical sensor, RFID dual authentication, and Push Data technology for multi-location setups.

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800Fingerprint capacity

80,000Transaction logs

<1 secIdentification speed

500 DPIOptical sensor

Overview

eSSL K21 PRO — RFID & Fingerprint Attendance Machine

eSSL K21 PRO RFID Fingerprint Time Attendance Machine — eSSL K21 PRO — Compact Biometric Device

The eSSL K21 PRO is a sophisticated biometric attendance machine designed specifically for small to medium-sized businesses. Specifically, it combines high-resolution 500 DPI optical fingerprint scanning with RFID card support — providing dual authentication for maximum security and flexibility.

Furthermore, with built-in Push Data technology, attendance records are synced automatically to the cloud or a central server. Consequently, it is perfect for multi-location setups where centralized workforce management is essential. In addition, it supports both Standalone (SSR) mode and Software-based operation modes — giving your organization full flexibility.

Dual Authentication: Fingerprint (800 templates) + RFID Card (800 cards)
Storage: Stores up to 80,000 transaction logs
Connectivity: TCP/IP, USB, and Push Data support

Features

Key Features of the eSSL K21 PRO

Everything you need for efficient workforce management in a compact, affordable package.

📥 SSR Recorder

The built-in Self-Service Recorder (SSR) allows you to download attendance reports directly to a USB drive in Excel format — consequently, no software is required for basic reporting.

⚡ Fast Identification

The high-performance algorithm identifies users in less than 1 second. Furthermore, the False Acceptance Rate (FAR) is ≤0.0001% — ensuring virtually zero unauthorized access.

🌐 Network Ready

Equipped with TCP/IP connectivity for your local network. Additionally, Push Data technology enables centralized server management — ideal for multi-location attendance setups.

💳 Dual Authentication

Supports both fingerprint and RFID card authentication. As a result, organizations can choose the credential type that best suits their security requirements and employee preferences.

🔄 Dual Mode Operation

Choose between SSR Standalone mode or Software mode depending on your infrastructure. Notably, this flexibility makes deployment simple in both small offices and larger enterprises.

🔔 Schedule Bell

Built-in mini speaker with schedule bell functionality. Specifically, this allows you to set audible alerts for shift changes, breaks, and attendance events — streamlining daily operations.

Specifications

eSSL K21 PRO — Technical Specifications

Parameter	Value
Fingerprint Capacity	800 Templates
Card Capacity	800 Cards (RFID)
Transaction Storage	80,000 Logs
Fingerprint Sensor	500 DPI Optical Sensor
Algorithm Version	Version 10
FAR / FRR	FAR ≤0.0001% / FRR ≤1%
Identification Speed	≤ 1 Second
Communication	TCP/IP, USB Host
LED Indicator	Green / Red
Speaker	Mini Speaker with Schedule Bell
Standard Features	Self Service Query, SSR Recorder, Auto Status Switch, DST, T9 Input
Push Data	Yes — real-time sync to cloud/server
Power Supply	5V DC, 0.8 Amps
Operating Temperature	0°C to 45°C
Operating Humidity	20% – 80%
Dimensions	185 × 138 × 45 mm
Operation Mode	SSR Standalone Mode or Software Mode

Software & Applications

Compatible Software & Major Applications

💻 Compatible Software & SDK

eTimeTracklite Desktop: Robust desktop application for reporting and workforce management
eTimeTracklite Web: Web-based application with ePush Service for real-time attendance data
ePush Service: Real-time cloud push for centralized multi-location management
SDK: Available for third-party software integration

🏢 Major Applications

Time & Attendance: Accurately track employee attendance and hours worked
Canteen Management: Monitor employee meal usage and cafeteria operations
School Attendance: Improve student attendance tracking and monitoring
Production Management: Optimize workforce productivity on the shop floor
Gyms & Clubs: Manage member attendance, access control, and billing

Benefits

Key Features and Benefits — eSSL K21 PRO

The eSSL K21 PRO is specifically engineered to address the most common challenges in workforce attendance management. Furthermore, each feature is designed to deliver measurable value — from reducing administrative overhead to enhancing security and compliance.

Capacity & Storage

Feature	Value & Benefit
Fingerprint Capacity	800 templates — sufficient for small to medium-sized businesses without additional hardware
Card Capacity	800 RFID cards — ideal for businesses using ID cards for access control and visitor management
Transaction Storage	80,000 logs — stores months of attendance data locally without data loss
Push Data	Yes — receives real-time notifications and updates, ensuring managers are always informed

Sensor & Security Performance

Specification	Detail
Fingerprint Sensor	500 DPI Optical — accurate recognition for both wet and dry fingers
FAR / FRR	FAR ≤0.0001% and FRR ≤1% — consequently preventing unauthorized access while minimizing false rejections
Identification Speed	≤1 second — fast processing minimizes queue times at entry points
Algorithm Version	Version 10 — the latest algorithm guarantees highest accuracy and security

Download

eSSL K21 PRO — Product Brochure

Download the official product brochure to review complete technical specifications, compatibility details, and installation requirements before placing your order.