Hi, Rod.

RG> 14 Dec 96 07:20, Bill Grimsley wrote to Chris Burgess:

RG>  BG> Especially as I suspect that the alarm system in question uses PIR
RG>  BG> rather than beam-type detectors (and PIR is pretty hard to beat).

RG> Some (most?) of them can easily be 'flooded' with IR.  Has the same
RG> effect as shining a torch into the lens of a camera.
RG> The 'hard' part is in increasing the ambient IR slow enough to avoid
RG> triggering the sensor(s), and of course ensuring that you don't move
RG> to a position inbetween the sensor and your IR source.

That's a good idea. How much IR do you need to flood? Do I need a
portable sun or just a small thermonuclear plant?

Regards, fIM.

 * * If we don't succeed, we increase our chance of failure.
@EOT:

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