Hi Does anyone have a good idea how I can resolve my microwave sensor light switch issue? I bought a ZINC RECESSED MICROWAVE SENSOR 360° at Toolstation for a basement bathroom. It works a treat but when someone upstairs treads directly above it, it comes one. Apart from looking like the bathroom is 'possessed', it's a waste of electricity. I've tried adjusting the sensitivity but it seems more able to notice who's above it than who's below it. (I guess I shouldn't have gone for the 360° model). Is there anything I can put above it that might stop it detecting 'everything'? Shall I bin it and get a PIR version?