Negative Positive
Title: Poor Carbon Monoxide Detection
Review: I have had one of these units in my furnace room mounted on the ceiling for over a year now. During a furnace repair, I discovered that the entire back half of my furnace exhaust pipe had rusted away and the furnace had been pumping exhaust directly into my basement all winter. Even though the detector was located only 5 feet away from the furnace and still responds correctly when the test button is pushed, it NEVER detected carbon monoxide. It is possible that the exhaust was being dispersed in a large basement area, but the detector still should have warned me. I have lost all confidence in this device.
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