Re: False Alarm

["Bill" <billnomailnospamx@xxxxxxxxx>]

All motion detectors have false alarms under certain situations. PIR's can
be triggered by lights or heat changes. Microwave detectors can be triggered
by radio frequencies. Ultrasonic can be triggered by refrigerators or water
coolers.

With that said, the best motion detector is one which uses two types of
detection and they BOTH must be triggered before an alarm is triggered.
These are called "dual technology" detectors.





"Injun Ear" wrote in message
>
> Last night, I got a call from my monitoring service saying my hall motion
> detector had tripped the alarm.  We were at a church meeting. They said
> they were sending the cops.  When we arrived home everything was intact.
> No doors or windows breached.
>
> So, what could have caused the Honeywell Aurora motion detector, that was
> just installed 3 months ago, to go off?  Could it be a loose connection or
> could it be a bug walking across the contacts?  I installed this system
> myself using most of the existing wiring from my old system.  This is the
> first problem I have had with it.