They're excellent units with many functions others dont have, but we've found they are very sensitive to dust and not a good idea in certain conditions. We had to return one where everytime we opened nearby window it would alarm. They were good about the exchange, but it shouldnt be that sensitive. The replacement has been fine.
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By anonymous on 07/28/2019, 07:05 AM EDT
Why are they so expensive? I could probably get a regular unit for
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