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Re: "Magnet tamper" for surface mount contact?



Bill wrote:

> Using a 3 wire contact (N/O *and* N/C) will make it quite difficult even for
> the "educated" types to figure out what to do. But then there is still the
> problem with the magnet. I suppose if the contact is very close to the
> magnet (tight fitting door), you could remove the back cover from the
> magnet, glue the magnet to the door, then screw the cover over that. Then
> they unscrew the magnet, tape it to the contact above, but when they open
> the door, the magnet glued to the door would open out with the door. So they
> would just be taping the plastic case to the contact and not the magnet.

The advantage to using the recessed contacts is that they can't see
where the contact is, or even IF it is, so unless they ring the entire
door with magnets, they'll have a hard time defeating it.


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