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Kidde KN-COSM-B Battery-Operated Combination Carbon Monoxide and Smoke Alarm with Talking Alarm
 
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Kidde KN-COSM-B Battery-Operated Combination Carbon Monoxide and Smoke Alarm with Talking Alarm

Other products by Kidde
4.2 out of 5 stars See all reviews (51 customer reviews)

List Price: $64.97
Price: $33.79 & this item ships for FREE with Super Saver Shipping. Details
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31 new from $28.94 1 used from $56.09
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Frequently Bought Together

Kidde KN-COSM-B Battery-Operated Combination Carbon Monoxide and Smoke Alarm with Talking Alarm + Kidde PI9000 Battery-Operated Dual Ionization and Photoelectric Sensor Smoke Alarm + Kidde KN-COPP-B Front Load Battery-Operated Carbon Monoxide Alarm with Digital Display
Total List Price: $155.45
Price For All Three: $77.37

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What Do Customers Ultimately Buy After Viewing This Item?


Technical Details

  • Talking Alarm announces the hazard type detected helping to speed up the reaction time
  • A single unit can be installed where previously two were needed
  • Battery Safeguard ensures the unit cannot be accidentally mounted without batteries installed
  • Test Reset Button tests alarm circuitry and triggers the voice announcement
  • UL Approved

Product Description

From the Manufacturer
The leading cause of accidental poisoning deaths in North America, Carbon Monoxide is odorless, tasteless and invisible. It is a silent killer. Kidde CO alarms include the most accurate sensing technology available, the patented Nighthawk electrochemical sensor. This unit combines a Carbon Monoxide and an Ionization Smoke Alarm, providing two important safety devices in a single unit. This alarm includes a voice warning system that announces "Fire, Carbon Monoxide, Low Battery or Smart Hush Activation." The voice alarm eliminates any confusion and clearly warns you and your family of a smoke or carbon monoxide danger, or if your battery is in need of replacement. This combination alarm is battery operated, protecting you and your family even during a power outage when many incidences occur. Install at least one CO alarm on every floor and in sleeping areas. Make sure CO and Smoke alarms are at least 15 feet away from cooking or heating appliances to prevent false alarms. Replace CO alarms every 5 to 7 years to benefit from the latest technology upgrades. Replace smoke alarms every ten years.

Product Description
KIDDE 900-0102 -- Protect your family and home against two deadly household threats -- Smoke and Carbon Monoxide -- with one easily installed and operated device. UL listed Power source - 3AA batteries

Product Details

Learn About Carbon Monoxide Hazards [292kb PDF]| Product Manual [604kb PDF]

Important Information

Legal Disclaimer
Warranty does not cover misuse of product.

Buy This Product and Related Accessories

Kidde KN-COSM-B Battery-Operated Combination Carbon Monoxide and Smoke Alarm with Talking Alarm

Kidde KN-COSM-B Battery-Operated Combination Carbon Monoxide and Smoke Alarm with Talking Alarm

$64.97 $33.79 Select this Item

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Customer Reviews

51 Reviews
5 star:
 (30)
4 star:
 (11)
3 star:
 (3)
2 star:
 (2)
1 star:
 (5)
 
 
 
 
 
Average Customer Review
4.2 out of 5 stars (51 customer reviews)
 
 
 
 
Share your thoughts with other customers:
Most Helpful Customer Reviews

 
64 of 66 people found the following review helpful:
5.0 out of 5 stars An Excellent Combination Life-Safety Alarm that is a Good Choice As A Stand Alone or As Part of A Total Home Safety Alert Plan, February 1, 2007
I've installed installed two of these Kidde brand combination smoke and carbon monoxide detectors in my elder parents home. I have one in my own home as well and have found them all to be reliable and trouble free.

What attracted me to this model were its many features:

First, it has a low profile, attractive and unobtrusive design.

Second and perhaps most important, it has a voice speaking function that, in addition to the 85db alert horn, will speak out clear warnings: "FIRE, FIRE" or "DANGER: CARBON MONOXIDE". I think that this feature is a terrific addition toward modern life-safety technology. Indeed, you will likely see more voice warning devices in the near future.

We rely on these detectors to warn us, especially at night when we are sleeping. Awakening to this detector from a deep sleep helps orient you quickly by telling you the specific danger -- clearly and unmistakably. Notably, recent studies have shown that children can sleep through traditional smoke detector alarms, but will respond to voice warnings -- which this unit provides. Thus, placed in or near bedrooms this device can be a true lifesaver.

Another favorite feature is ease of installation. It was a breeze and truly could not be simpler. A screwriver is all you need. A small power drill/driver would speed the process, but is not necessary. Two screws into the ceiling or wall and you are done with the mounting bracket. The detector then just clicks in to place with a clockwise flick of the wrist. This is a do-it-yourselfer's dream. It doesn't get any easier!

Battery maintenance is easy too as all you need do is turn the detector counter-clock wise a few clicks, and down it comes. You slide open the battery cover, take out the old batteries and pop in the new. Replace the detector back in the attached ceiling bracket, give it a slight turn and in it goes with a firm click. Done! Easier than screwing in a light bulb.

Finally, the price is right! Under $40 for a unique life-safety device that is quickly installed and easily maintained.

I have elected to use Energizer lithium batteries and replace them every 12 months -- with no problems. You may wish to change the batteries every 6 or 9 months. Duracells would also be a good choice. I personally would not use the cheaper, so called "heavy duty" batteries in a life-safety device.

I should add that I would also suggest that if you have a home with multiple levels or an apartment with several rooms, having a separate stand-alone carbon monoxide detector elsewhere in the house as part of a total home plan would be a wise investment. Kidde also makes a fine combination model that protects against Carbon Monoxide and Explosive Gas. That unit, which has a digital display, runs on electricity and has a battery back-up system. It plugs in any electric outlet and can stay in the wall socket, or it can be placed flat on a table or dresser.

I would also recommend Kidde's dedicated dual sensor photoelectric/ionization smoke detectors. These dual sensor devices provide maximum warning under fast or slow moving fire conditions. As one never knows what kind of fire could occur, these are the most versatile.

Be sure to test your alarm regularly. REMEMBER that most carbon monoxide detectors NEED TO BE REPLACED about every five to seven years (see manufacturer's guidelines). Similarly, smoke detectors have a useable life span as well. It's usually a little longer than carbon monoxide detectors -- check your manufacturer's guidelines.
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40 of 43 people found the following review helpful:
1.0 out of 5 stars Not sure about this product, October 28, 2007
By E. Mendonsa (Reston, VA) - See all my reviews
(REAL NAME)   
After looking at the excellent ratings for this product, I purchased two units and installed them - one each in the bedroom and the utility room. One day, I was getting the toddler to sleep when I smelt smoke and something burning. Upon exiting the bedroom (which has one detector), I noticed that the house was full of thick black smoke from a "microwave cooking accident". There was no fire. The fact that the smoke detector did not go off bothered me and I did a bit of reading on the detection systems. Turns out that there are two detection mechanisms - ionization and photoelectric...and to cut a long story short, one needs to have both types of mechanisms in operation. The manual of this product pretty much says the same thing on page 6. However, it does not tell me which smoke detection technology the unit uses - information that I can use to purchase a different smoke detector with the other mechanism to compliment this one. I can only know how good this product is when it responds to something that triggers it. It did not pick up smoke that I picked up by smelling, and the documentation is inadequate. That is why I give it a one.
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22 of 22 people found the following review helpful:
4.0 out of 5 stars Solid dual-use alarm; just one small caveat, June 13, 2007
This is my third Kidde smoke-CO alarm. (I left the previous two in previous residences.) I bought a Kidde because from firsthand experience their alarms are reliable. This one features dual smoke-and-CO detection, and has a computer-generated voice that says "fire" or "carbon monoxide" or "low battery" in addition to eardrum-piercing sirens. The alarm uses 3 AA batteries (3 Energizers included in package), and so far I've found the battery life to be satisfying.

One minor caveat is the alarm will stop working after 7 years, due to the ionic sensor's limited life span. I believe this to be true of most home alarms. Since I plan to move (yet again) in a few years, this is not a problem for me.
Comment Comment (1) | Permalink | Was this review helpful to you? Yes No (Report this)


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Most Recent Customer Reviews

1.0 out of 5 stars battery life of 2 weeks
I inherited this smoke alarm from previous owners. It began chirping non-stop two weeks later. I bought an identical replacement, and it drains the batteries in 10-14 days,... Read more
Published 1 month ago by Yulya

3.0 out of 5 stars CO/Smoke alarm not for RV
I purchased this product, intending to install in my RV. Only after opening the package did I discover the information that it is not recommended for an RV. Read more
Published 2 months ago by GoodTimeCharlie

3.0 out of 5 stars Voice too quiet, otherwise ok
I bought this for three reasons:

1 To provide portable battery-operated smoke detection.
2 To provide an additional CO alarm. Read more
Published 2 months ago by Ben

2.0 out of 5 stars Problem with early model?
I purchased 4 KN-COSM-B alarms in 2005, not realizing they were "old stock" manufactured in 2001-2002. Read more
Published 3 months ago by A Reader

1.0 out of 5 stars 1 Star for Kidde Nighthawk Carbon Monoxide Tech Support
It's been fifteen minutes so far... at that point on hold the phone began ringing on the other end, yet no answer. Read more
Published 4 months ago by Bruce Dickey

5.0 out of 5 stars They work great so far!
Purchased 4 of these units for a new home purchase and they work great! No false alarms in the kitchen, and I feel good about having them all over the place due to so many natural... Read more
Published 4 months ago by Craig Lindstrom

5.0 out of 5 stars SAVED MY FAMILIES LIFE!!!
We live in a 4 level split home. Our gas furnace is on the lower, 3rd level. Two years ago we had several smoke alarms, but only one carbon monoxide detector on the top, bedroom... Read more
Published 7 months ago by RMT

5.0 out of 5 stars Kidde KN-COSM-B Battery-Operated Combination Carbon Monoxide and Smoke Alarm with Talking Alarm
This is the second one of the smoke alarms I have bought. The first one went seven years with no problems. Then it started alerting that it was time for a new alarm. Read more
Published 7 months ago by Kevin

5.0 out of 5 stars TWO IN ONE!
I love this product, not only because it's so practical to have both Smoke and CO2 alarms in one unit, but it is so unobtrusive and it works well (doesn't go off every time you... Read more
Published 8 months ago by Yoda

5.0 out of 5 stars I like the idea of a voice as it gets your attention.
I like the way it was a voice to alert you when you are sleeping. Just a loud buzz can go unnoticed or ignored. Read more
Published 8 months ago by Dennis C. Rahn

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