----- Original Message -----
From: Peter Grey <martech@OZEMAIL.COM.AU>


> I have been reading about the pressure sensors but has anyone got a
> suggestion for sensors that will detect if a vehicle is running across a
> lawn or park. It need not pick up something light such as a dog or cat.

Dig a moat around the place and monitor the water level for an raise when a
car falls into it.  :)

Actually, I've been looking for something similar, right now I've got an
infrared detector over the front yard --results are still not satisfactory.

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