Re: What kind of sensor did I see today?

["Group-Moderator" <Group-Moderator@xxxxxxxxxxx>]

"Robert L Bass" <robertlbass@xxxxxxxxxxx> wrote in message
news:5c-dnedPoMsWdBvZnZ2dnUVZ_t2dnZ2d@xxxxxxxxxxxxxx
>> Does the intruder break the wire,
>> thus breaking continuity...
>
> Yes.  They used to "lace" doors and vent openings with this wire and that
> is exactly how it worked.  The problem is the stuff is easy to break and
> can require a lot of maintenance.  Some installers used to make basswood
> (no relation to this writer:)) screens to protect openings.  The basswood
> dowels are light but not particularly flexible.  The wires were embedded
> in a slot that ran the length of each piece of woord.  A thief would have
> to break or dislodge the screen to get in.  Doing so broke the circuit.
>
> These wire lacing schemes are not too common but you'll run into them from
> time to time.  Some of them are still in use.  For certain types of
> openings the wire lace is still effective.
>
> --
>
> Regards,
> Robert L Bass
>
> =============================>

woord, woord , woord, woord,woord, woord , woord, woord,woord, woord ,
woord, woord

DID HE MEAN WOOD - LIKE HIS HEAD?