125KHz RFID Card Duplicator – Handheld RFID Reader & Copier

The 125KHz RFID Card Duplicator is a compact, portable device designed for reading and duplicating compatible 125KHz low-frequency RFID cards, tags and key fobs. It supports common RFID formats including EM4100, TK4100, T5577, EM4305 and EM4205, making it useful for authorised access-control management, replacement credentials and testing applications.

With simple READ and WRITE controls, built-in LED indicators and an audible buzzer, the duplicator provides straightforward operation without requiring a computer or additional software.

Key Features

• Reads 125KHz EM4100 and TK4100 RFID cards and key fobs
• Reads and duplicates compatible EM4305, CET5557, T5577, 5200 and EM4205 writable RFID tags
• Supports EM4100 / EM410X compatible formats
• Simple READ and WRITE push-button operation
• Built-in RFID transceiver antenna
• Individual LED status indicators
• Built-in buzzer provides audible confirmation
• Compact handheld design for portable use
• Powered by 2 × AAA batteries (3V) – batteries not included
• Approximate dimensions: 115 × 70 × 30 mm
• Compatible rewritable cards and key fobs can be rewritten many times
• No computer or software required for basic operation

How to Use

Reading a Card:
Place a compatible 125KHz RFID card or tag within the reader's induction area and press and hold the READ button. A successful read is confirmed by the indicator light and buzzer.

Writing to a Compatible Tag:
Once the original credential has been successfully read, place a compatible rewritable 125KHz RFID card, tag or key fob in the induction area and press the WRITE button. The indicator and buzzer will confirm when the operation is successful.

Important Compatibility Information

This device is designed only for compatible 125KHz RFID technology. It does not support 13.56MHz NFC/MIFARE cards.

HID-format credentials are not supported.

For duplication, the destination card or tag must contain a compatible rewritable RFID chip, such as a supported T5577-type credential. Standard read-only EM4100/TK4100 credentials cannot themselves be rewritten.

Note: RFID credentials should only be duplicated where you own the credential or have permission from the relevant access-control administrator.