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I have seen that on rainbow six, its for deploying cluster charges
Its defo a M65537998/V2
I'd honestly go with some kind of sensor whether it's temp, movement, moisture. Something.
Only one way to find out.. lick it.
maybe it's a temp sensor to make sure the powery-boxey-thing hasn't gone up in flames?
Its actually a camera. Post brexit our large supermarkets will no longer import burger meat from them dirty foreigners so need to track the origin of all supplies to ensure their true britishness.
Looks like it requires lube.
wifi extender aerial?