The tag comes with a UID already. But it’s in EM mode, not HID mode so you need an EM reader. With a strong EM reader and the exacting placement, it is possible to read it while in the syringe, but not easy. The needle is completely encasing the antenna. It does not matter if it’s thin, it creates a strong barrier for the inductive coupling. The antenna is very small and is not easily coupled with to begin with compared to cards with huge antennas comparatively.
All tags are tested prior to packaging.
You have the right tag, you just have to clone it to your HID card to put it in HID mode once it’s installed. I definitely do not recommend trying to clone it in the needle.
Be aware of this issue.
Also check out this
