More Views

RFID Tag - 125kHz-Sparkfun


This is a basic RFID tag used for presence sensing, etc. Works in the 125kHz RF range. These tags come with a unique 32-bit ID and are not re-programmable. Card is blank on one side, smooth, and mildly flexible.


  • EM4001 ISO based RFID IC.
  • 125kHz Carrier 2kbps ASK Manchester encoding.
  • 32-bit unique ID number.
  • 64-bit data stream [Header+ID+Data+Parity].

Dimensions: 2.13 x 3.35 x 0.03" (54 x 85.5 x 0.8mm).


Availability: Out of stock

Out of Stock

Product Tags

Use spaces to separate tags. Use single quotes (') for phrases.