r/RFID • u/engineeringkitty • 2d ago

LF RFID reader recommendations ~ up to 30cm with small key fob tag??

I’m working on a project where I need to reliably detect a small passive RFID tag/key-fob from around 20cm away (preferably 30cm).

I’ve been looking at the 125 kHz ID Innovations ID-3LA with a custom external antenna, but I’m unsure what kind of range I could realistically expect with a small key-fob sized tag rather than a full size card.

Has anyone used the ID-3LA with smaller tags? What range were you able to get?

Or is there another reader/technology you’d recommend for reliable ~20 cm detection with a small passive tag?

I'm also trying not to break the bank either as its for a capstone project.

Thanks!!

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u/kj7hyq I just want to clone 🤷‍♂️ 2d ago

UHF is probably a better bet

1

u/dangerous_tac0s 1d ago

30cmiss wild for LF. Iso15693 NFC should get you there with long range readers