Problem with those sensors...
.... is where their thresholds are set.
My parents have motion detector lights at their place. Possums, cats, the family dog all set them off.
That's great if you just want the lights to come on. OTOH, it conditions everybody to ignore the lights. "Ah, just the possum/raccoon/cat/dog/bogeyman...."
I don't know how to change their settings, or I would do so.
Cheers,
M
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