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Re: pir false alarms



"Robert L Bass" <robertbass1@xxxxxxxxxxx> wrote in message
news:1rWdnU5jyoEj5_rYnZ2dnUVZ_u2dnZ2d@xxxxxxxxxxxxxx
> > I didn't see you defending his erroneous
> > postulation that a PIR will not trip if the
> > air temperature within it's range changes
> > rapidly.
>
> Jiminex is categorically wrong.  The detector doesn't *see* air
temperature.  When warm (or cool) air moves across in front of the
> detector without touching it and without heating or moving a visible
object, the detector is unaffected.  Jiminex is confused by the
> difference between air movement in view of the detector and air *striking*
the detector.  The latter can easily trip many PIR
> detectors.  That is one of the reasons it is important to seal the wire
entry hole in a PIR.

After reading this I don't think Jim's the one thats confused, you
apparently know nothing about PIR's




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