Radio frequency identification (RFID) tags are small fingernail-sized microchips that store and transmit personal data to RFID readers. RFID tags or "chips," are most commonly used as tracking devices inside objects such as credit cards, luggage and even animals. In order to detect RFID chips, you must have a RFID chip reader that can send and receive the signals transmitted by the RFID tags.
Obtain an RFID chip reader at a specialised online or local electronic retailer.
Turn on the RFID chip reader and scan the vicinity of the area you believe RFID chips are present. Although each RFID chip reader is different, RFID chips will generally emit a frequency that will cause the chip reader to produce a beeping noise to indicate the presence of RFID chips.
Follow the signal strength with the increase in the series of beeps from the RFID chip reader. If your RFID chip reader has the ability to detect the direction of the frequency, the device will be able to tell you exactly what direction the RFID chip is located.