Bests & Worsts Reviews from Amazon

Purchased five of these for use in our personal home with the intent to buy more for rentals if they performed well. Really liked the idea of having a voice warning that tells what the problem is and was thrilled at how easy the installation was...for about 48 hours. About two days after initially installation, started getting a "beep" but no voice indication of low battery/other. We always keep spare batteries in stock so decided to replace the batteries with fresh ones and problem seemed to go away. Temporarily. A few days later the alert goes off again which of course, signals ALL of them to go off as they are interconnected. This time it indicates a dead battery. Odd since we replaced them but figured our batteries may have been older than we realized. Went to the store and bought all new batteries - replaced in all five units. A few nights later - about 2 in the morning - we get a full fledged alert with the 'WARNING -FIRE!" screeching through the house. After peeling ourselves off the ceiling, we took down the one main culprit and figured that one may be a lemon. Since we have five in the house, we still felt it may be an isolated problem...EXCEPT The Next night we get yet another screeching alert...."WARNING - Carbon Monoxide". It should be worth mentioning to note that we had NO fireplace burning and do NOT cook or heat with anything other than electricity. In fact, nothing was running whatsoever. At this point, we're exhausted from several nights of interrupted sleep and all of these are going back. The good news is the interconnected portion works. The bad news is the constant false alarms will leave you likely to take them down in order to get a full nights sleep. In all our years of smoke alarms these have given more false alerts in just a couple weeks than the past 20 years combined. SKIP~!