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PIR ceiling sensors

PIR sensor power usage in standby is in tens of milliwatts range. Over a year would cost a few pence in electricity not pounds.
 
JohnW2 said:
It's your choice - but, be warned that, if you do, it might fairly quickly drive you mad!
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Mr_T25 said:
Builder is trying to convince me to put this in rather than a switch!
Click to expand...

I thought you said:
I was thinking of putting a PIR sensor in ceiling...
Click to expand...
If it's the builder (in the name of all that is rational, why???) tell him to do one.

If it is you, why not think again? Just what is wrong with a switch, like wot 99.9999999999999999999999999999999999999999999999999999999999999999999999999999% of people have?
 

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