For years they have been doing it for exotic plants, pets, farm animals, and ... TIRES!!! It is a glass bead with chip inside.
You need to hold the scanner close to it to detect it.
The new models you still need to be about 10 ft or less to detect.
They operate like a crystal radio (for you old timers).
they get power from the radio waves and then transmit back their code.
good luck folks.
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