> hat's a good idea. maybe extract the sensor that's already in there &
> just use that?

If your quary is a red hot piece of metal a few inches away maybe. Else
not. The output is in milivolts or less. How big are your animals, and how
furry ? If very furry and small then PIR may not work at all. I've once
seen IR pictures of seals and polar bears and all you can see is the
breath around the head (the seals emit a little more then polar bears but
when wet they can appear *colder* than the dry ice they are sitting on).

Peter

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