The fancy smartcard electronic unit on the MC28...can it be switched to MPH?

If not whats the easiest way to get it reading KMH & MPH?

Hopefully going to be buying a 28 and the DVLA here are very picky and will want it to read both.

If not I am thinking of taping it up and mounting a borrowed speedo for the inspection. Then obviously take the fecker off and use fancy electronic thing.

I have done a search and not alot came up.
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Lemon owner and lover