Thanks for that.
Sorry - should have said that I have exactly the same controller and agree that it is really very good (had it for about 12 months, now).
I did see a review from a youtuber called Paul Hibbert, who confirmed that the Ikea motion sensors work outside, but am not sure how these compare to the Aqara versions and whether the latter will work outside but if under a porch (rather than fully exposed).
Thanks for the tip about the Aqara motion sensor - if I can get the light and motion in one device, that would be ideal.