Halfbakery: RFID Proximity Kill Switch

I think I saw this demonstrated on an Australian TV show, a few years ago.

-- pertinax , Aug 14 2006

I've never had the problem, I'll assume I never will. Bun.

-- jellydoughnut , Aug 15 2006

Passive RFID range is only about a meter. Beyond that you need a powered transponder.

-- Galbinus_Caeli , Aug 16 2006

Batteries are small enough and waterproofing technology has advanced to the point where having a...

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Related topics : rfid proximity kill switch / rfid proximity switch