Product Overview
The DO Dual-Frequency RFID Reader Module delivers industrial-grade dual-band card reading capability in a compact form factor. Operating at 125 kHz and 13.56 MHz, this module supports both EM4100/TK4100 and Mifare S50/S70/NTAG203/NTAG213 card types, making it suitable for access control systems, advertising terminals, electronic class boards, integrated LCD displays, electronic door locks, and attendance terminals. The module reads UID card numbers from both 125 kHz and 14443A protocol cards, with support for USB, TTL, RS232, and Wiegand 26/34 communication interfaces. Designed for direct SMT mounting, it integrates easily into terminal equipment where reliable card identification is required for commercial and industrial deployments.
Product Advantages
- Dual-Frequency Compatibility — Supports both 125 kHz low-frequency and 13.56 MHz high-frequency cards in a single module, reducing component count and simplifying PCB design for system integrators.
- Multiple Interface Options — Offers USB, TTL, RS232, and Wiegand 26/34 outputs, allowing direct connection to existing access control panels, embedded systems, and industrial controllers without additional interface conversion.
- Compact SMT Package — Measuring 60 mm × 27 mm × 4 mm with a built-in antenna, the module is suitable for space-constrained applications such as advertising machines, interactive kiosks, and thin-profile terminals.
- Wide Voltage Support — Operates from 3.3 V to 5.5 V, enabling integration into systems with varying power rails without regulation components.
- Low Power Consumption — Current draw below 100 mA ensures suitability for always-on terminal equipment and battery-backed deployments.
- Industrial Temperature Range — Operating from -20 °C to +70 °C with storage from -50 °C to +120 °C, the module supports deployment in indoor, semi-outdoor, and temperature-variant environments.
Key Features
- Operating frequencies: 125 kHz and 13.56 MHz
- Supports 125 kHz cards: EM4100, TK4100
- Supports 13.56 MHz cards: Mifare S50, S70, NTAG203, NTAG213
- Baud rate: 9600–115200 Kbit/s (default 9600)
- Communication speed: 106 Kbit/s (13.56 MHz)
- Read range: 0–50 mm (depending on card type and environment)
- Status indicators: LED and buzzer outputs
- Power supply: 3.3 V to 5.5 V DC
- Current consumption: < 100 mA
- Interfaces: USB, TTL, RS232, Wiegand 26 / 34
- Extended I/O port available for additional control
- Operating temperature: -20 °C to +70 °C
- Storage temperature: -50 °C to +120 °C
- Operating humidity: 0 % to 95 % relative humidity
- Module dimensions: 60 mm × 27 mm × 4 mm
- Antenna: Built-in
Technical Specifications
| Parameter | Value |
| Operating Frequency | 125 kHz, 13.56 MHz |
| Supported Card Types | 125 kHz: EM4100, TK4100 13.56 MHz: MF S50, S70, NTAG203, NTAG213 |
| Interfaces | USB, TTL, RS232, Wiegand 26, Wiegand 34 |
| Power Supply | 3.3 V – 5.5 V DC |
| Current Consumption | < 100 mA |
| Read Range | 0 – 50 mm |
| Communication Speed | 106 Kbit/s |
| Baud Rate | 9600 – 115200 Kbit/s (default 9600) |
| Extended I/O | Yes |
| Operating Temperature | -20 °C to +70 °C |
| Storage Temperature | -50 °C to +120 °C |
| Operating Humidity | 0 % – 95 % RH |
| Dimensions (Module) | 60 mm × 27 mm × 4 mm |
| Antenna | Built-in |
Industrial Applications
Advertising and Interactive Kiosks — System integrators building advertising machines and digital signage terminals use this module for card-based user identification, membership verification, or interactive content triggering. The dual-frequency support allows operators to deploy both legacy 125 kHz cards and modern 13.56 MHz NFC credentials from a single reader module.
Access Control and Door Lock Systems — Wholesale buyers supplying access control components integrate the module into electronic door locks, entrance controllers, and elevator call panels. The Wiegand 26/34 interface ensures compatibility with standard access control panels, while TTL and RS232 options suit custom embedded controller designs.
Attendance and Time Tracking Terminals — Distributors serving workforce management projects select this module for attendance terminals because it reads both EM and Mifare card families, covering the majority of card types used in corporate and industrial environments. The compact size enables slim terminal enclosures suitable for wall-mounted placement.
Integrated LCD Display Terminals — Project contractors building all-in-one terminals with touchscreens and card reading capability benefit from the module’s built-in antenna and SMT-ready design, which reduces assembly complexity and shortens development cycles for custom terminal products.
Electronic Class Boards and Education Equipment — OEM customers producing classroom technology equipment integrate the module for teacher and student card identification, simplifying authentication in smart classroom deployments.
OEM / ODM Manufacturing Support
As an OEM/ODM manufacturer with over 20 years of production experience, do rfid reader manufacturer supports custom modification of this dual-frequency module to match specific terminal integration requirements. OEM customization options include:
- Baud rate and communication protocol adjustment per customer firmware specification
- Interface selection and pinout customization for direct PCB integration
- Antenna tuning and sensitivity adjustment for specific card types or read distance targets
- LED and buzzer behavior programming for application-specific status indication
- Label, packaging, and documentation customization for distributor branding programs
- Sample production within 3–7 days for evaluation and system testing
Factory Production Advantages
DO RFID Reader operates a specialized RFID reader production facility with stable manufacturing capacity to support long-term wholesale supply and large-scale project deployment. Key factory capabilities include:
- Batch Consistency — Each production run undergoes in-house quality inspection to maintain uniform read performance and interface behavior across bulk orders, critical for system integrators deploying identical readers across multiple sites.
- Stable Supply Chain — Long-established relationships with semiconductor and component suppliers ensure consistent availability of primary chipsets and passives, reducing lead-time risk for distributor and OEM customers.
- Fast Lead Time — Standard sample orders ship within 1–5 working days; bulk orders of 5,000–100,000 units complete production within 7–15 working days, supporting time-sensitive project schedules.
- Export Experience — Strong cooperation with DHL, FedEx, TNT, UPS, and sea freight forwarders enables reliable international delivery for wholesale buyers worldwide.
- Warranty Support — Products carry a 2-year warranty against non-human damage, with repair service available for out-of-warranty units, reducing total cost of ownership for commercial deployments.
Bulk Supply & Project Deployment Support
Wholesale buyers, system integrators, and project contractors benefit from DO RFID Reader’s bulk supply capability and project-level technical support. Whether procuring 500 units for a multi-building access control retrofit or 10,000 modules for a national kiosk deployment, the factory maintains consistent pricing, uniform product quality, and dedicated communication channels for order tracking and technical coordination. Payment options include T/T, PayPal, and Western Union, with flexible terms available for repeat wholesale cooperation.
FAQ
Q: What card types does this dual-frequency module support?
A: It supports 125 kHz cards (EM4100, TK4100) and 13.56 MHz cards (Mifare S50, S70, NTAG203, NTAG213) with UID reading capability.
Q: What interfaces are available on this module?
A: USB, TTL, RS232, and Wiegand 26/34 are all supported. The module can be ordered with the interface configuration suited to your system.
Q: What is the read range of this module?
A: Read range is 0 to 50 mm, depending on card type, antenna environment, and power supply voltage.
Q: Can the module be customized for OEM projects?
A: Yes. do rfid reader manufacturer supports OEM/ODM customization including firmware modification, interface pinout, antenna tuning, and branding. Contact us with your requirements.
Q: What is the typical lead time for bulk orders?
A: Sample orders ship within 1–5 working days. Bulk orders of 5,000 to 100,000 units complete production within 7–15 working days.
Q: What is the operating voltage range?
A: The module operates from 3.3 V to 5.5 V DC, with current consumption below 100 mA.
Q: Is this module suitable for outdoor deployment?
A: The module is designed for indoor and semi-outdoor use with an operating temperature range of -20 °C to +70 °C. For full outdoor deployment, additional environmental protection should be considered.
Q: Do you offer free samples for evaluation?
A: Yes. Contact us to request a sample for testing. The sample is provided free of charge; freight is covered by the requester.
For technical specifications, OEM customization discussions, bulk pricing, or project deployment support, contact do rfid reader manufacturer at info@dorfidreader.com.