On 08/09/2016 18:45, ARW wrote:
I know that it is a 30mm by 4mm glass capusle with some electronics
inside it.

But other than that I have no idea.

http://wiki.diyfaq.org.uk/images/2/2f/Wtf1.jpg



As others have said, looks like a low frequency transponder. TI do a
31x4 mm one:

http://elcodis.com/parts/1758759/RI-TRP-RR2B-20.html

Did Toby get the rest of the apprentice?

--
Robin
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