Sure - but, as I said, I would not be totally comfortable relying on devices which were susceptible to to the extent that safety might be compromised, whether the fields in question originated within or outside of the CU! ... an argument for 'non-electronic' devices, I suppose!There are a lot of magnetic fields inside a CU! Remember that a manufacturer's type-tested CU will (should) have been tested in a way that would discover any interaction between the devices within that CU.
Kind Regards, John