Parallax 125KHz RFID Tag - Key Fob

ParallaxSKU: RB-Plx-215
Manufacturer #: 28161

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  • Works with the Parallax RFID Card Reader (Serial)
  • EM4100 family passive tags
  • Activating frequency: 125 kHz
  • RoHS Compliant

The Parallax 125KHz RFID Tag - Key Fob is designed to work with the Parallax RFID Card Reader (Serial) (#28140) and Parallax RFID Card Reader (USB) (#28340) and is considered passive tags. This tag has a unique 10 digit ID, so multiple tags can be used in a single project and may be purchased in any quantity.


  • EM4100 Family Passive Tags
  • 125 kHz activating frequency
  • Readable from 2 to 5 inches of RFID reader
  • Keychain tag for attachment

Compatible with:

  • Parallax RFID Card Reader (Serial)
  • Parallax RFID Card Reader (USB)
  • 1x Parallax 125KHz RFID Tag - Key Fob

Customer Reviews

Based on 1 review
Good stuuf

Using this as demo for RFID application, I fills the need at an OK price. And delivery is good too.

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