How would I go about doing this with an RFID system?
—John,
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John,
It would depend on the material from which your walls were made. Gypsum board and many other materials will not block RF signals from a passive UHF reader, so you could read through such walls with little problem. If the walls were made of metal or were extremely dense, however, it would be a good deal more challenging to read through them. You could try batter-assisted passive (BAP) tags.
—Mark Roberti, Founder and Editor, RFID Journal
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