If you're talking about the kind used in home security systems to
monitor doors and windows, I've seen a few of them freeze up and lock
either open or closed. Also sometimes the plastic casings can crack
after extreme weather.

Josh
--
A common mistake that people make when trying to design something
completely foolproof is to underestimate the ingenuity of complete
fools.
        -Douglas Adams

Kevin Fisk wrote:
>
> Has anyone had experience with Magnetically activated switches? I am
> looking for experience and insight with a "behind the panel" scenario.
> Just need one input. Specifically I'd like to learn about good devices,
> hidden 'gotchas', low cost alternatives, etc. Thanks and appreciate any
> and all insights. Have a great day

--
http://www.piclist.com hint: PICList Posts must start with ONE topic:
[PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads