RFID technology uses radio waves to identify objects remotely. The design and operation of the system are simple and effective. Small devices, known as tags, are attached to objects and allow them to be identified automatically. A tag consists of an electronic circuit with stored data and a transceiver antenna. The data is recorded and read using radio waves generated by an RFID reader, which has its own antenna and processes the received information.
125 kHz RFID proximity key fob, encoded, for identification, blue, compact and lightweight, TK4100 chip, UNIQUE HD-RKF07 key fob