they do work - but not suitable for every location
less sensitive than normal pirs and need careful siting
they normaly require the animal not to be able to get within 2 metres of the
sensor
dont get confused with pirs with pet lens - these are not suitable for cats
you need animal resistant pirs. Note they dont call them animal proof
sensors! but they do work
much better to have its own zone as well
"Dave" wrote in message
...
.. However, I was just looking at cpc and they
have some 'animal resistant' PIRs which wont be triggered by an animal up
to
35kg in weight. Has anyone used these devices before and are they really
resistant to my cat wandering round (while still picking up a person!)?
Here
is a link to them...

http://tinyurl.com/g0fw


cheers

dave.