So far the ones with the fewest falses I have tried are the Intellisense DT-500s. Unfortunatley they also have a very low sensitivity in many applications.
I have not pushed the 100lb limit for them, but I did install some in a mobile home that had two dogs in the 50lb range. They were old rather slow moving dogs though. Never had a false there that I was aware of.
I can say that the pet immune ratings of some of the cheaper motions is total bull pucky though.
Bob La Londe
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