We should also note that Aeon labs, which makes the aeotec brand, makes most of their devices in almost all zwave frequencies, including the US and EU.
That includes the minimote, the Aeotec key fob, The aeotec panic button, and hopefully the new wall controllers once they are released.
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As mentioned up thread, all three of these work well with SmartThings in either the US or the UK. Obviously, this is a good thing, but it does mean that if you buy from an international seller, you need to make sure you get the frequency that matches your hub. 