Machine readable tag

摘要

A radio frequency identification device (RFID) including radio frequency identification circuitry enclosed in a protective molded casing having an attachment surface for attaching the RFID to a ferrous object, the radio frequency identification circuitry being positioned in the casing so as to keep the circuitry a predetermined distance away from the ferrous object which may interfere with the communication between the RFID and the RFID reader.