Re: Humans invisible to heat sensors?

[Frank Olson <Use_the_email_links@xxxxxxxxxxxxxxxxxxxxxx>]

Roselnathan wrote:
> Anyone heard of clothing or other device which makes an intruder
> invisible to heat-sensing type of sensor (part of domestic security
> sytem)?  (1) Last night friends activated ground floor zone at 11.45pm.
> (2) Approx 2.55am burglars threw paving stone through ground floor
> window, got in and left with 42" HD plasma TV - alarm did not go off.
> (3)  Owners woken by noise, went downstairs, switched off system at
> 3am.  Today alarm professionally tested and apparently working OK.
> Print-out shows 1 and 3, no activity of any kind between.  What
> happened?  Vague hint that there are ?clothes ?devices that make the
> wearer/user invisible to these sensors.  About to take up expensive
> contract with national name (UK) and would appreciate advice.
>


If they were *home*, chances are the detector was bypassed.  You should
check if the "auto-bypass" or "stay" feature is enabled.  If you arm the
system and don't leave and can walk in front of the sensor without
setting off the system then "auto-bypass" is enabled.  To arm the sensor
you have to open and close the main exit door.  If the system is
monitored, please ensure that you call the station before you do any
testing.