Re: PIR Motion Detectors

["SantaUK" <santa@xxxxxxxxxx>]

I think you could have thought out of the box with this one, I doubt the OP
is talking about when the system is armed (surely!).  Several years ago, the
Police believed that a member of staff in a store had sprayed the detectors
in the office during the day with some form of coating that masked the
detectors.  Then had fitted magnets to the contacts.  Locked up the store at
the end of the day, and then came back in the middle of the night and
emptied the safe of £13,000.  Obvioulsy the alarm log showed that no one had
unset the alarm and there were no activations.  They never quite got to the
bottom of that one.

--
Regards


M Millar

"Roland Moore" <roland@xxxxxxxxxxxx> wrote in message
news:lWRPg.23680$LH2.6932@xxxxxxxxxxxxxxxxxxxxxxx
> Hair Spray? How old are you? Let's assume it did work for a moment.
> Explain how you would deploy the hairspray without the can, your hand and
> the rest of your carcass being attached to the hairspray can entering the
> protected area? And the second part of the dual tech is going to love that
> metal can.
> For the record it is an x,y graph with delta temp and delta time for the
> first part and doppler rf microware for the secord. The circuits of the
> pyrolytic element adjust sensitivity to the ambient temperature. If you
> try to defeat an alarm system from the detector level with your technique
> (or most any other) you'll have a long time in prison to get your degree
> in physics so this will all make sense.
>
> "meyers95" <meyersryanw@xxxxxxxxxxxxx> wrote in message
> news:1158605981.894272.205460@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
>> Does anyone know if it is possible to circumvent a motion detector with
>> hairspray?  I am assuming this would work with a dual technology motion
>> as well because it takes both technologies to trip.  Please let me
>> know.  Thanks
>>
>
>