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Access Control Card Readers
  • RS232 Rfid Reader Module 125Khz Wiegand Rfid Transmitter and Receiver with Antenna Coil
  • RS232 Rfid Reader Module 125Khz Wiegand Rfid Transmitter and Receiver with Antenna Coil
  • RS232 Rfid Reader Module 125Khz Wiegand Rfid Transmitter and Receiver with Antenna Coil
  • RS232 Rfid Reader Module 125Khz Wiegand Rfid Transmitter and Receiver with Antenna Coil
  • RS232 Rfid Reader Module 125Khz Wiegand Rfid Transmitter and Receiver with Antenna Coil
  • RS232 Rfid Reader Module 125Khz Wiegand Rfid Transmitter and Receiver with Antenna Coil
RS232 Rfid Reader Module 125Khz Wiegand Rfid Transmitter and Receiver with Antenna Coil

RS232 Rfid Reader Module 125Khz Wiegand Rfid Transmitter and Receiver with Antenna Coil

$4.50-$10.00/ Piece|50 Piece/Pieces(Min. Order)
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RS232 Rfid Reader Module 125Khz Wiegand Rfid Transmitter and Receiver with Antenna Coil

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • RFID Card Reading & Transmission: Designed to read 125kHz RFID cards, enabling secure access control via Wiegand protocol compatibility.
  • Multi-Interface Support: Integrates RS232, Wiegand, and TTL communication interfaces for flexible integration into diverse systems.

Key features

  • 1. Durable Material Construction

    • With a robust FR-4 epoxy glass laminate base, this RFID module ensures long-term reliability and resistance to environmental stress. The high-quality soldered components guarantee stable electrical performance in demanding applications.

  • 2. Multi-Protocol Flexibility

    • With support for RS232, Wiegand, TTL, and 125kHz RFID protocols, you can seamlessly integrate the module into diverse systems, offering greater compatibility than single-protocol readers*.

  • 3. Precision Timing and Power Stability

    • Equipped with a crystal oscillator and a large capacitor for voltage regulation, this module delivers precise timing accuracy and reliable power management, outperforming basic modules lacking such features*.

  • 4. Compact Design for Space-Constrained Environments

    • Its densely packed layout and small form factor enable easy installation in tight spaces, ideal for commercial access control systems where space is limited*.

  • 5. Industry-Standard Wiegand Protocol Compliance

    • Adhering to the Wiegand protocol ensures seamless interoperability with existing access control ecosystems, simplifying upgrades or retrofits in security infrastructure*.

Product details

RS232 Rfid Reader Module 125Khz Wiegand Rfid Transmitter and Receiver with Antenna Coil

The RS232 RFID Reader Module operates at 125kHz with Wiegand protocol compatibility, designed for reliable access control and identification systems. Built on a compact FR-4 epoxy glass laminate PCB, it integrates a crystal oscillator for precise timing, a high-capacity capacitor for stable power, and a central IC for robust processing. Supports multiple interfaces (RS232, Wiegand, TTL) to adapt to diverse system requirements.

Technical specifications

FeatureSpecificationBenefit
Operating Frequency125kHzEnsures compatibility with standard RFID cards
Communication InterfacesRS232, Wiegand, TTL, RFIDFlexible integration into legacy or modern systems
MaterialFR-4 epoxy glass laminateDurable, flame-retardant construction
Antenna CoilCustomizable inductanceAdjustable read range for specific use cases
ProtocolWiegandIndustry-standard for secure access control

Customization guide

Adjustable parameters include antenna coil inductance (to optimize read range) and interface protocols (RS232/Wiegand/TTL) to meet system-specific requirements.

Get inspired

Ideal for access control systems, time attendance devices, and inventory management. With its compact design and multi-protocol support, it enables seamless integration into space-constrained environments like smart locks or handheld scanners.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Read Range5–10 cm+20% (6–12 cm)+40% (7–15 cm)*
Data Transfer Rate9600 bps115200 bps921600 bps
CompatibilityWiegand/RS232+TTL Support+AES Encryption

Supplier's note

  1. Three Technical Breakthroughs:

    • Wiegand Protocol Integration: Enables seamless compatibility with existing security systems.
    • Multi-Interface Support: With RS232/Wiegand/TTL, users avoid costly system overhauls.
    • Compact Design: The FR-4 PCB reduces physical footprint by 30% compared to traditional modules.

  2. Optimal Version Selection:

    • Base Model: Ideal for basic access control (e.g., office doors) where cost-efficiency is prioritized.
    • Advanced Model: Suitable for industrial environments requiring faster data transfer (e.g., warehouse automation).
    • Pro Model: Best for high-security scenarios (e.g., data centers) needing AES encryption and extended read ranges.

With the Pro Model’s 15cm read range, you can deploy contactless systems in crowded areas without compromising reliability. Pair its AES encryption with the FR-4 material’s durability to ensure secure, long-term operation in harsh conditions.

*Comparative Hint: The Pro Model’s read range exceeds industry benchmarks by 20%.

Frequently asked questions

  • Which RFID reader module suits small offices for access control?

  • How to clean the antenna coil of the RFID reader module?

  • Is the 125KHz RFID Reader Module FCC/CE certified?

  • Wiegand vs TTL: Which protocol is better for long-distance data transmission?

  • Can the RFID reader module be customized for specific mounting?

  • Does the 125KHz RFID Reader Module work with legacy systems?

  • Is the RFID reader module suitable for outdoor environments?

  • How does the module handle power fluctuations?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Frequency RangeRFID tag compatibility125kHz (ISO/IEC 11784 compliant)Longer read range (up to 50cm)▲ compared to 13.56MHz systemsLower data transfer rate (1-4 kbps)▲▲ vs 13.56MHz高频 systems
Communication ProtocolsSystem integrationSupports 4 protocols (RFID, RS232, Wiegand, TTL)Versatile for legacy and modern systems▲▲Requires manual configuration for each protocol▲
Protocol CompatibilityLegacy system upgradesWiegand 26/34-bit protocol supportBackward compatibility with existing Wiegand systems▲▲Limited to Wiegand-enabled controllers▲
Security FeaturesSecure access pointsBasic authentication (no encryption)Simple implementation and cost-effective▲Vulnerable to cloning▲▲ (no AES-256 encryption)
Power RequirementsBattery-operated deployments5V DC input (USB compatible)Widespread power availability▲Not optimized for low-power IoT devices▲▲ (no power-saving mode)
Physical DesignSpace-constrained installationsCompact module design (minimizes space usage)Easy integration into small devices▲Limited expansion slots for future upgrades▲▲

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