RE: Stair Mats

["BUTLER, Tony, FM" <roaming@xxxxxxx>]

> > I can imagine that I'd want to know whether someone was going up
or
> down
> > stairs, and given that someone might only tread on alternate
stairs,
> > there's some subtlety...
> 
> I use one at the bottom of the stairs with a PIR at the top, 
> works well
> and filters out "false" instances of a light coming on.

Ah, but this won't catch the case of the alternate step person- perhaps
u
need one on the 1st two stairs - or indeed, to catch the wiley
3-stepper,
the 1st three steps :-)

T.


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