Negative Positive
Title: Junk, unless you enjoy middle-of-the night "testing" alarms
Review: Within two weeks of purchasing this alarm, it started blaring "testing" followed by several loud beeps for the smoke alarm, several loud other beeps for the CO alarm, and then a report that CO was "zero point zero ppm." It did this four times in the last two days, including twice in the middle of the night. Needless to say, I'm not very happy.I tried to call First Alert for a replacement, per the other reviewers, and they never picked up their phone. I was on hold a couple of times, with no luck.
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