Re: PIR recommendation.

["Jim" <alarminex@xxxxxxx>]

James Russo wrote:
> Thanks to all those who replied. I've decided to go with the sentrol RCR
> for the installation.
>
> -jr

Be careful James.

I didn't look at your layout but if you use the RCR units in close
proximity to one another you're going to have false alarms. Microwave
units like these will set each other off. Don't let the controled Radar
adjustment fool you into thinking that the array will be contained. The
only thing that's happening is that the unit will not see a doppler
shift further out than you adust it for but that doesn't mean the
patten is being contained within that adjusted area. That is:  If the
unit has a range of 50 feet and you set it for 19 feet, the array is
still reaching out to 50 feet and likely further.  If it happens to
cross pattern with another unit .......... false alarms.
Also, units cannot be mounted back to back within two feet but I
wouldn't trust it even that close.