
125KHz Low Frequency RFID Reader
Low Frequency RFID Reader (125KHz): Accurate Desktop Reader for Animal & Access Control
Our 125KHz Low Frequency RFID Reader is designed for precise tag reading in challenging environments. Built for durability and consistency, this RFID desktop reader performs optimally even near water or metal—making it a trusted choice for animal tracking, healthcare, access control, and automotive systems.
This RFID reader supports passive low-frequency tags and provides excellent anti-interference capability, delivering seamless data capture and real-time identification performance for demanding industrial use.
Applications of 125KHz Low Frequency RFID Reader
- Animal Identification – Read livestock RFID ear tags for tracking, health monitoring, and breeding records.
- Access Control – Integrate with door systems in offices, schools, hospitals, or restricted zones.
- Healthcare Systems – Use for secure patient identification or hospital asset tracking.
- Automotive Control – Enable contactless vehicle entry or tracking with key fobs.
- Industrial Environments – Track metallic or fluid-surrounded assets that challenge higher-frequency RFID.
Key Features
- Stable Low-Frequency Signal (125KHz) – Works even near liquids or metals, unlike UHF/HF systems.
- Multiple Interface Options – Easily integrate with USB, RS232, RS485, or Wiegand 26 systems.
- High Compatibility – Reads common chips like EM4200, EM4305, TK4100, and T5577.
- Compact and Durable Design – Slim form factor for desktop use in harsh or mobile environments.
- Plug-and-Play Setup – No drivers required for USB interface, enabling quick deployment.
Technical Specifications
Feature | Specification |
Chip Compatibility | TK4100, EM4200, EM4305 |
Frequency | 125KHz – Low Frequency |
Communication Interfaces | USB, RS232, RS485, Wiegand 26 |
Read Range | Up to 10 cm (depending on tag and environment) |
Power Supply | 5V DC, 100mA |
Size | 104mm x 68mm x 10mm |
Operating Temp | -20°C to +70°C |
Storage Temp | -25°C to +75°C |
Installation | Desktop |
Compliance | CE / FCC |
Why Choose Our Low Frequency RFID Reader?
- Reliable Near Liquids or Metals – Designed for environments where high-frequency tags fail.
- Industrial-Grade Durability – Robust ABS casing with stable voltage protection.
- Universal Protocol Support – Compatible with all major 125KHz passive tags.
- Easy to Integrate – Plug-and-play connectivity with standard control software or embedded systems.
- Trusted by Professionals – Used in livestock management systems, veterinary clinics, and factories worldwide.
Upgrade your RFID solution today
Request a quote, sample, or technical support for your application needs.
Contact Us to get pricing, datasheets, or custom integration help.
Bulk orders available with discounts. OEM/ODM support provided.
Frequently Asked Question
The top questions about RFID Reader.
A low-frequency RFID reader operates at 125 KHz or 134 KHz, offering short read ranges (~10 cm) and is ideal for use near metal, liquids, or in high-interference environments.
Common applications include animal tracking (livestock ear tags), access control (EM cards), industrial tracking, healthcare, and vehicle identification.
This device supports passive LF RFID tags such as TK4100, EM4200, EM4305, and T5577.
Yes. It supports USB (HID), RS232, and Wiegand, so you can easily integrate with existing PC software or access control systems.
LF (Low Frequency) offers shorter range but performs better near liquids or metal, making it more suitable for some industrial and animal identification use cases.
Hot To Customize RFID Tags
Know the customization process about RFID tags

Size & Shape
Send your requirements on size and shapes. Tags are typically designed in simple shapes and sizes to match the internal antenna. However, they can also be customized in various sizes and shapes to best fit the intended application and the asset being tagged. For instance, RFID hang tags can be customized in size, shape, and attachment method to perfectly suit specific applications.

Layout & Chips
In the label format designer, select the layout that matches the type and size of the RFID label you wish to create. Our factory provides a variety of label templates, including RFID-specific options. We also offer a range of RFID chips tailored to meet your specific requirements.

High Customization
Custom tags are designed from the ground up to meet the needs of specific applications, with unique variables for nearly every option listed below. A semi-custom tag typically starts as a standard tag but offers additional customization options, such as custom printing, encoding, or specific backings and attachment methods.

Sample Confirmation
Before proceeding with full-scale production, we offer a sample confirmation process to ensure that the RFID tags meet your exact specifications and application requirements.

Mass Production
Our mass production process for RFID tags is designed to deliver high-quality, reliable products at scale, ensuring that your business has a steady and consistent supply of RFID solutions tailored to your needs. Leveraging state-of-the-art manufacturing facilities and advanced technology, we maintain efficiency and precision throughout the production cycle.
RFID Tags Application
Use customized RFID tags in different industies.

RFID Vehicle Tags
Vehicles with RFID tags enable secure access to gated areas. RFID tags also streamline truck weighing for efficient billing.

Temperature Sensor Tags
RFID temperature sensors, used in industries like steel, send data to alert users of unsafe conditions via RFID readers.

RFID Supply Chain Tags
RFID tags for supply chain visibility track products, showing when a box, pallet, or container moves from one facility to another.

RFID Personnel Tracking
RFID strengthens access security: employee badges for workspace entry, hotel wristbands for pool access.

RFID Pallet Tracking Tags
Our RFID tags are ideal for tracking pallets and containers, offering durable, low-profile solutions for warehouse management.

Custom RFID Tags & Labels
Our factory supplies custom RFID tags and OEM hardware solutions for unique needs when standard RFID products aren't available.

RFID Laundry Tags
Our RFID laundry tags, with a soft rubber casing, are flexible and durable, surviving 200 wash cycles and 60 bars of pressure.

Industrial RFID Tags
We provide rugged industrial RFID tags and readers for demanding applications. Our tags withstand all weather conditions.

Animal RFID Tags
RFID tags track animals and pets using ear tags or injectable ampoules. Ear tags can be custom-printed and come in various colors.

RFID Asset Tracking
RFID tags for asset tracking, like file servers, rental equipment, streamline inventory, asset management, enabling quick location, tracking.

Consumables RFID Tags
RFID counterfeit tags on consumables, with a reader in the machine, verify authenticity and prevent counterfeit use.

Manufacturing RFID Systems
RFID tags are used on almost all products—apparel, furniture, appliances, and cars—and are crucial for automated manufacturing systems.
Why Choose Us
As an original manufacturer with over 13 years of experience, we specialize in designing and manufacturing passive RFID (NFC, HF, and UHF) tags for applications in inventory, laundry, access control, identification, and industrial automation management.
We are a pioneering leader in RFID technology and smart product solutions. For nearly 20 years, we have been at the forefront of custom RFID and NFC technology, offering innovative solutions in every imaginable form. Our expertise lies in developing and producing RFID/NFC products that are tailored to meet your specific requirements.

As the world’s leading RFID supplier, our factory is passionate about RFID technology. We deliver a wide range of products, including NFC tags, NFC cards, RFID/NFC labels, RFID inlays, various apparel tags, laundry tags, and RFID devices, to clients around the globe. Our RFID products are widely used in marketing campaigns, healthcare monitoring, workforce management, stock control, access control, apparel systems, laundry systems, inventory systems, IoT systems, and security applications.
Our Benefits
We provide products with competitive pricing and reliable quality, backed by an after-sales warranty. Whether you are a distributor, system integrator, or end-user, you will find the right RFID and related products here, ensuring that your company gains tangible benefits.
We have grown into a company with over 200 team members, including a production department, R&D center, sales department, technical support, and after-sales service. Understanding that time is of the essence, we can fulfill customized orders within just 5 days. Our dedicated team of over 100 factory staff ensures a stable supply and fast delivery for all our orders.
Related Products
Customize any types RFID tags from our factory to meet your own requirements.