RFID Blue Eye Key Fob Tag
These EM-4100 family products are designed to work with the Parallax RFID Card Reader and RFID Reader USB and are considered passive tags. Each tag has a unique 10 digit ID, so multiple tags can be used in a single project and may be purchased from Parallax in any quantity.
- EM4100 Family Passive Tags
- 125 kHz activating frequency
- Readable from 2 to 5 inches of RFID reader
- Keychain tag for attachment