Have had this unit for over a year. I have at least one false alarm per month, maybe more. Usually at 3:00 am I get a text message on my cell phone that a carbon monoxide alarm has been detected. The alarm clock works perfectly, never rings. I chose to ignore the fire alarm text when I was away two weeks ago and it turned out to have really worked (they need to be vacuumed about once a year because they cause dust build up) and my poor dog must listen to the explosion alarm for 4 hours. I reset it several times, moved it, with no improvement in function. About 90% of false positive notifications. The accuracy is so low that I basically ignore the alerts I get - it kind of defeats the purpose and renders this thing practically useless.
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