Re: Re:Small movement sensors ...

[Chris Hunter <cjhunter@xxxxxxxxxxxx>]

thanks ... that, too ... ie: people-presence & window / door
condition, and maybe weather, too ! ... 'wonder if anyone has managed
to get a handle / lock on ajar / locked / etc ... reliably, that is !!

Chris


On 30 Jul 2007, at 10:11, JonShaw wrote:

> Chris
>
> Do you mean you want to detect if the window/door is open/closed?
>
> If so I have used magnetic reed switches in windows and external
> doors, same
> as internal.
>
> I chose a device from rapid electronics that was as short as
> possible and
> confirmed with the window people there was enough room in the frame
> for the
> magnet before getting to the sealed unit.
>
> This only gives open/closed rather than ajar/wide open and doesn't say
> whether the window/door is locked or just pulled to, but it is
> fairly simple
> and easy.
>
>
>
> HTH
>
> Jon



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