If you're going to test more than just kettles and toasters, then at some stage you will find something with an unusual plug! There's no reason at all not to test it - you just need to find the right adaptor so you can connect it to your PAT Tester. You should find here every adaptor you could possible need - but in case you need one we haven't yet listed - be sure to give us a call and we'll get on to it straight away!