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Review title: Combo Smoke and CD Detector
Product review: I replaced identical detectors which were installed in my house when it was built in 2005 with these units about a month ago. The CD portion of the original units failed and were constantly giving false alarms. These woke me up one morning about 2 months after I installed them by saying carbon monoxide alert in a very loud and irritating voice. I took them down and pulled out the batteries for an hour or so and they seemed to reset. I installed them again and they seem to be OK for the last week or so. Not very confidence inspiring.
