RE: Detecting an open door

["BUTLER, Tony, FM" <roaming@xxxxxxx>]

>Having spent some of Sunday building a new front gate, I'd like to
detect
when
>a person enters through it. The gate is next to the garage - both are a
bit
of a 

Look out the window? :-)

>walk from the house so I don't want to run wires, so any X10 powerline
or
RF
>options?

Oh, you wanted an automated solution? :-)
An X10 wireless PIR would at least detect someone near the gate - you
could
angle it I suppose so that it only detected someone inside the gate
rather
than passing on the road.
Really you need some sort of beam break or maybe magnetic contacts
connected
to something.  Dunno if there are wireless available though, but PIR's
yes.

HTH,

Tony



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