125khz RFID Smart EM ID Read Only Entry Access Keyfob Tag Token Keychain Card (100 Pack) (Grey)

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About This Read only, Can not be programmed Works as a regular 125KHz RFID Card type: EM Can't compatible with UHF reader and encrypted readers Pre-programmed with unique 18 digit ID number in each keyfob (This RFID card is read only, not re-writable.), and first 10 digits are printed on each keyfob Show more