On 11/12/19 13:15, Tricky Dicky wrote:
We have a PIR on the garage facing a window and it has never been triggered by movement inside the house. In fact it has a remote control which can be used to override the settings or to alter the settings and even that will not work through the window.
Really? I just tried the IR remote for the TV in the kitchen through the
double-glazed patio door into the conservatory. Absolutely no problem
changing the volume or channels.

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Jeff