Can I buy such a kit?
I am unaware of any kit that you can buy to retrofit a cabinet or refrigerator with an RFID interrogator. IDTronic, Phychips, ThingMagic and a few other firms make reader modules designed to be placed in existing cabinets. But the antennas that you need will differ based on the cabinet's size and the organization of the materials contained within. These companies will likely have antennas, or be able to advise you about where to get some, that will work for your needs.
—Mark Roberti, Founder and Editor, RFID Journal
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