Do P38 door outstations vary? can I just pick up replacement units and fit them or is it a little more complicated than that? I've seen loads for sale on ebay but don't want to buy something that might be wrong.
Stuff fitted to the P38 seems to have changed week to week Look at the part number on the one you want to replace. There may or may not be many versions, they may or may not all do the same thing, I don't know.