Re: Garage Protection with Pets

[Foo Bar <nospam@xxxxxxxxxx>]

Hi Crash;

I did a quick scan of the manual and didn't see any zone type that that
used 2 triggers to alarm, but my reading wasn't real complete. I suppose
I could put in 2 detectors in a NO loop to effectively AND the signals.
The downside is the on time of about 3 seconds would require the
detectee to move through both detectors at about the same time. Thanks
for the idea, I will look into using a small microprocessor to do what
you suggest to combine multiple sensors with a time window.

                          -Bill-


Crash Gordon® wrote:
> I believe the 20P can use cross-zoning, although I've never done it with this particular panel. You install 2 motion detectors in one area, then program them as cross-zoned with each other. A trip on one will not cause an alarm unless the other one also trips within a certain time frame (usually programmable in the panel). Then with a little creative pir placement you're all set.
>
>
> "Foo Bar" <nospam@xxxxxxxxxx> wrote in message news:JbIse.3590$NU5.2790@xxxxxxxxxxxxxxxxxxxxxxxxxxxxx
>
>>Another newbie question here.
>>
>>House is a combo wired/wireless with an Ademco 20P panel. I have a
>>problem protecting the attached 2 car garage. The main garage door, the
>>door to the house and the back door are mag contact protected. The
>>problem is that we have cats and sometimes want to bypass the back door
>>to let them go in/out while away for a short time. Thus I need some sort
>>of "space" protection to pick up someone who may enter via the
>>bypassed/open back door. I first tried an Aurora PIR mounted just below
>>the open rafters. Unfortunately, with small cats, if they climb into the
>>rafters, they are close (and hot) enough to simulate a 40lb critter. I
>>pulled the Ademco and replaced it with a microwave/PIR combo unit. Much
>>better but still managed to false once. I guess I could be very careful
>>in locating the PIR and masking out the usual location that the cats
>>might be in, but I am hoping one of the pros can suggest a more
>>cat-proof volume protection sensor.
>>
>>         -Bill-
>
>