Kidde KN-COSM-B Battery-Operated Combination Carbon Monoxide and Smoke Alarm with Talking Alarm
by Kidde
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Tools and Hardware Reviews of Kidde KN-COSM-B Battery-Operated Combination Carbon Monoxide and Smoke Alarm with Talking Alarm
Customer Review: Kidde Carbon Monoxide and Smoke Alarm
Summary: 4 Stars
I already owned one of these alarms and liked it so well I decided to buy another. It detects and warns of both smoke and carbon monoxide. The voice alarm also lets you know which hazard is present. Overall, it's a simple, economical answer to our need for fire/smoke and CO protection. Kidde even supplies the three AAA batteries that power the unit. I plan to buy at least two more to provide additional protection for our basement and other rooms. Fortunately, it's never activated. Note that the smoke alarm is an ionization type that detects particles from flaming fires sooner than do photoelectric alarms, but photoelectric units detect smoke from smoldering fires sooner. The company recommends installation of both types to provide complete protection.Customer Review: Trust the Kidde Alarms
Summary: 5 Stars
Bought this product because I trust the Kidde name for their reliability.
I wanted a device that was a combination Carbon Monoxide and Smoke alarm that used batteries. This product fit the bill. I like that it uses AA batteries instead of 9v - because I always have AA on hand.
Included with the alarm is the mounting hardware and the 3 AA batteries.
I haven't had an alarm that talked before - but the voice on it is fine and am hoping family will pay more attention to it when it goes off.
Also nice - this alarm has an end of life feature. At the end of 7 years the alarm will go off every 30 seconds - indicating it's time to replace it. I like brainless features like that. Once less thing for me to think about.
Customer Review: Three of Three Detectors Malfunctioned
Summary: 1 Stars
I bought 3 of these from Home Depot immediately after closing on our home. Within one month they began to malfunction. Every 15 minutes or so they began to output a loud beep, and repeat this behavior for about an hour before going silent. Once quite they would remain dorment for days on end before repeating this behavior. The sticker on the detector says that this behavior is signaling that the detector has malfunctioned. Being an optimist I tried swapping out the batteries hoping that would put an end to it; unfortunately it didn't help in the slightest. The last straw was when the detectors startled us awake at 3:00 AM for the 3rd or 4th time. They all came down that night. We will never buy another Kidde detector.Customer Review: Problem with early model?
Summary: 2 Stars
I purchased 4 KN-COSM-B alarms in 2005, not realizing they were "old stock" manufactured in 2001-2002. I was not too concerned about the batteries not being fresh, after all you are supposed to change your alarm batteries frequently. However, after 3 years one of the alarms (mfg in 2001) began to chirp without the "low battery" message, indicating a failure. New batteries and a reset did not help. I contacted Kidde and they sent me a new replacement. Now a second of the original alarms (mfg in 2002) has the same chipring problem and Kidde again offers a replacement. No telling yet how long the replacements will last, but at least for the early models, about 7 years from manufacturing date is the useful lifetime.Customer Review: Amazon sent me a one year old unit.
Summary: 3 Stars
I bought this detector on 10/17/10 from Amazon. The unit I received had a manufacturing date of 9/17/09 written on it. Amazon sent me a detector which was over one year old. These detectors have a life span of 5-7 years, so my "new" unit is already 20% used up. I hope that it won't have problems after sitting around in the warehouse for 13 months.
Other than the manufacture date, this is a decent detector. It replaced an old KN-COSM-B whose batteries corroded and damaged the battery compartment. It's odd that they corroded, but the detector was 6 years old, so I gladly replaced it.
Buy your detector from the local hardware store, who may have units which aren't a year old like Amazon.