How Can I Use RFID to Let Pets In and Out, But Not Other Animals?

By RFID Journal

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Ask The ExpertsHow Can I Use RFID to Let Pets In and Out, But Not Other Animals?
RFID Journal Staff asked 8 years ago

There are two cat doors in my new house with covers on them. I have to lift the covers to let cats in and out, or I can leave them off and risk having unwanted guests. I looked into RFID cat doors, but they’re expensive. Is it possible to add chips to the existing doors? Thanks!

—Joni H. (United Kingdom)

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Dear Joni,

The chip is usually placed in the animal, not the door, though it can also be put on a collar, if you prefer not to embed one in your animal. The door would contain a small reader module that would unlock the door flap each time your cat approached, but would keep it locked for other un-tagged animals. If you are handy, you could possibly purchase a reader module online and set it up so that a tag on or in your cat would unlock the door. Here is a video showing how to do it. Good luck!

—Mark Roberti, Founder and Editor, RFID Journal

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