125Khz RFID module - UART

97% of 100
effective distance: 50mm Less than 100ms decoding time UART TTL interface
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One of the coolest part of IoT project must be the identification technology, 125Khz RFID module – UART is the most popular RFID module that produced by Seeed, By connecting this RFID module to Arduino or Raspberry Pi, you are able to build projects that can be used in office/home security, personal identification, access control, anti-forgery, interactive toy and production control systems etc.


  • Support external antenna

  • Maximum effective distance up to 50mm

  • Less than 100ms decoding time

  • UART TTL interface

  • Support EM4100 compatible read only or read/write tags

  • Built-in external bi-color LED and buzzer driver

  • Small outline design


Module will notify whenever 125khz tag approaches, tag serial number will be send via TX pin. Easy way for a RFID module on MCU projects or PC connnection via UartSB.

Technical details

Dimensions 0mm x0mm x0mm
Weight G.W 10g
Battery Exclude

Part List

125Khz RFID module - UART 1
External Antenna 1


ECCN 5A992
HSCODE 8517709000
USHSCODE 8517700000
UPC 841454113485


125Khz RFID module - UART

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