Undetectable LF? elevator tag

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Hello everyone,

Happy to join the Dangerous Things forum! I just got my first Proxmark3 Easy, and I’m excited to start learning, so please excuse me if I’m missing something obvious.

As my first challenge, I wanted to clone my elevator tag. From what I’ve tested so far, I believe it may be an LF tag because I’m seeing a maximum voltage drop of around 3-4V when I place it over a specific spot on the LF antenna during hw tune.

Could anyone help me identify what type of tag this might be and point me in the right direction for reading it?

The tag is a common blue, round keychain-style tag.

Any help would be appreciated. Thanks!

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You might try lf search -u

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FYI, These can be HF or LF.

can you share an image of your fob placement on the Proxmark for each of your scans?

HF & LF

Also

If you can open it up, there may be some very good clues in there

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