Description
The Realtime C121T is a high-performance access control and time attendance system designed to provide businesses in Bangladesh with accurate attendance tracking, enhanced security, and faster access management. Combining fingerprint and RF card authentication with advanced features like live finger detection and auto-sensing, the C121T ensures a seamless and reliable solution for offices, factories, schools, and other organizations.
At CSL Systems Bangladesh, we offer genuine Realtime biometric devices with official warranty, professional installation, and nationwide delivery.
“The Realtime C121T has streamlined attendance tracking at our factory. Live fingerprint detection and fast verification save us time while improving security.” — Mr. Karim, HR Manager, Dhaka
Q2: Does it support outdoor installation? A2: It is mainly for indoor use, but optional casing is available for semi-outdoor environments.
Q3: How many users can it store? A3: The device supports thousands of users with fingerprint and card templates.
Specifications
| Attribute / Feature | Specification Details |
| Fingerprint Users: | 1,000 |
| Card User : | 1,000 |
| Password User : | 1,000 |
| Attendance Records : | 100,000 |
| Fingerprint Verification Mode : | 1:1, 1:N |
| Working Mode: | Offline |
| Verification : | Fingerprint, ID Card, Password |
| Combination : | FP+Card, PIN+Card, FP+PIN+Card |
| Verification Time: | >1.0s |
| False Rejection Rate : | <0.01% |
| False Acceptance Rate : | <0.0001% |
| Finger Print Sensor : | Optical Sensor |
| Screen : | 2.4 inches (Color Display) |
| Display Language: | English |
| Communication : | RS485, USB Drive/Link, TCP/IP |
| Working Humidity: | 20%-60% |
| Working Temperature : | 0°C-45°C |
| Power Supply : | 9V DC |
| Idle Current: | 400mA |
| Working Current : | 500mA |
| Sound Indicator: | Buzzer, Voice |
| Access Control : | Built-in |
| Battery Backup : | Built-in (2-3 Hours) |
🏢 About CSL Systems
CSL Systems is Bangladesh's one-stop security, attendance, and smart business solutions company, providing trusted solutions from leading brands including Hikvision, Dahua, ZKTeco, and Uniview.
We also develop our own AttendPro Attendance & Payroll Management Software and Smart POS Management Systems, delivering complete technology solutions for modern business operations.
→ Explore our complete Attendance & Payroll Management System






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