ok I am wondering , I have seen the "chips" thye put under dogs skin are those rfid devices? and if so what is the range? could one be useed to open a door / dog door or let you know when a dog goes out of range?
or is the range too limited on theses, or am i "barking" up the wrong tree
or is the range too limited on theses, or am i "barking" up the wrong tree
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