Re: PIRs for house with ceiling heating & cooling vents and "pets"!

["Roland Moore" <nospam@xxxxxxxxxx>]

>the meniscus in a negative mode

Somebody was in the chemistry lab way too long.
Next you'll be telling us about the stoichiometry of claculating the mass of
an intruder.

"tourman" <robercampbell@xxxxxxxxx> wrote in message
news:1193517792.528131.284750@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
> > Actually, I've had one Bravo 3 in my house for about a year now (OK,
> > OK... I couldn't say "no" to Angela at Tried when she said "try one").
> > Even with the stupid cat, I haven't had a single problem.
>
> RHC: Count your blessings then ! All these cheap little motions have
> no "forgiveness" built in.
>
> An analogy I use to explain motions to clients goes something like
> this. Think of a motion as a glass of water. A cheap motions is like a
> glass of water with the meniscus full, and even a slight jiggle or
> movement spills water from the glass. With the better motions,
> especially the dual techs, it's like a glass of water with the
> meniscus in a negative mode. You can jiggle it and nothing happens
> because there is some very little bit of space left in the glass  But
> any real alarm is like hitting the glass with a hammer
>
> I know it's not a perfect analogy, but it works to explain the
> differences to non technical folks.
>