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Title: piece of junk
Review: I am writing this at 2am because I could not figure out how to shut off the stupid smoke alarms without pulling it out of the ceiling and removing the battery. I cannot find the manual, and I cannot find one online. The alarm went off and there is no fire, no dust, no apparent reason for waking us all up in the middle of the night. Tomorrow I will look for a new smoke alarm.
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