RFID Tag EM TK4100 IC 125KHz | Low Frequency Read-Only Access Device

SKU - STR125

Prices do not include VAT

  • Order 50 pcs. at 1.1 EUR

  • Order 100 pcs. at 0.7 EUR each and save 36.36%

  • Order 300 pcs. at 0.65 EUR each and save 40.91%

  • Order 500 pcs. at 0.6 EUR each and save 45.45%

  • Order 1000 pcs. at 0.55 EUR each and save 50.00%

Free test samples for significant orders, delivery time to Europe is 1-2 working days. Special prices available for larger orders. Contact us for more details.

Total 55 EUR (VAT not included)

  • Description
  • Datasheet

Compact RFID Tag for Basic Access Control

This RFID tag comes in a compact round sticker format, primarily designed for use in proximity-based access control systems. It functions as a contactless ID card and is ideal for:

  • basic access management,
  • presence tracking,
  • secure entry into office buildings, parking areas, or residential complexes.

Convenient Use

The tag can be easily attached to the back of a smartphone, a keychain, or any other object, allowing users to simply bring it close to an RFID reader to gain access or log entry.

Key Technical Features

The TK4100 chip offers 64 bits of read-only memory with a factory pre-programmed unique ID, making it ideal for basic identification and access control applications. Operating at 125 KHz (Low Frequency), it provides reliable performance with most LF RFID readers and access control systems. This chip is compatible with EM4100/EM4200 formats and provides a cost-effective solution for simple identification needs. Please note that this is a read-only device - the ID cannot be changed after manufacturing.

Recommended Applications

  • Low-cost access control systems
  • Employee ID badges
  • Parking access
  • Classroom or office attendance tracking
  • Simple asset or vehicle identification systems

Ready to Use

The tag comes pre-programmed with a unique factory-set ID. To begin using it, simply register the ID in your access control system or scan it with an RFID reader.

Package Contents

  • 1× TK4100 125KHz RFID Tag
  • Includes anti-metal interference sticker for reliable performance

Compatibility Note

Works with standard 125KHz RFID readers and access systems. Not compatible with NFC smartphones or 13.56 MHz systems.

Questions or Need Setup Guidance?

Contact us and we'll provide expert support. Whether you're experimenting, developing, or implementing in real-world environments, this NFC tag is ready to deliver flexible, smart functionality.

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