Is there any instrument that is as simple to use as a metal detector, and that anyone can purchase and learn how to operate?
I'm unsure what you mean by "sound receptors." If you refer to a device that can detect an RFID transponder implanted within the human body, then such a transponder does not make noise. Rather, it receives energy from a reader and reflects back electromagnetic waves that can be deciphered by the appropriate interrogator.
To detect a transponder, one needs to know the frequency and protocol used. Implantable transponders usually operate at 134 kHz and comply with the ISO 11784 air-interface protocol standard. Doowa, Omnikey, Tectus and others manufacture readers that would fit the bill and should be relatively easy to operate.
—Mark Roberti, Founder and Editor, RFID Journal
Previous Post How Does RFID Work in Libraries? »