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

by Kidde
| 58 answered questions

List Price: $64.97
Price: $26.63 & FREE Shipping on orders over $35. Details
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In Stock.
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1 Pack
  • Talking alarm announces the hazard type detected, helping to speed up 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
  • Meets requirements of Underwriters Laboratories (UL), an independent facility that tests products for safety compliance
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Frequently Bought Together

Kidde KN-COSM-BA Battery-Operated Combination Carbon Monoxide and Smoke Alarm with Talking Alarm + Kidde FA110 Multi Purpose Fire Extinguisher 1A10BC + Kidde KN-COPP-B-LPM Battery-Operated Carbon Monoxide Alarm with Digital Display
Price for all three: $66.82

Some of these items ship sooner than the others.

Buy the selected items together


Product Information

Size Name: 1 Pack
Technical Details
Part Number 900010202
Item Weight12.5 ounces
Product Dimensions5.5 x 5.5 x 2 inches
OriginImported (China)
Item model numberKN-COSM-BA
Batteries:3 AA batteries required.
Size1 Pack
ColorWhite
Power Sourcebattery-powered
Item Package Quantity1
Batteries Required?Yes
Warranty DescriptionTen-year limited warranty
  
Technical Specification
Additional Information
ASINB00004WA4C
Best Sellers Rank #39 in Home Improvement (See top 100)
Shipping Weight13.6 ounces (View shipping rates and policies)
ShippingThis item is also available for shipping to select countries outside the U.S.
Date First AvailableJanuary 29, 2009
  
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Product Description

Size: 1 Pack

Amazon.com

The Kidde KN-COSM-BA battery-operated carbon monoxide and smoke alarm combines two important safety devices into a single unit. This alarm includes a voice warning system that makes four announcements: 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 unit uses three AA batteries, protecting you and your family even during a power outage.

This alarm uses ionization-sensing technology for the smoke alarm. Ionization-sensing alarms may detect invisible fire particles (associated with flaming fires) sooner than photoelectric alarms. Photoelectric-sensing alarms may detect visible particles (associated with smoldering fires) sooner than ionization alarms. Kidde strongly recommends that both ionization and photoelectric smoke alarms be installed to help ensure maximum detection of the various types of fire that can occur within the home.

KN-COSM-BA Battery-Operated Combination Smoke and CO Alarm at a Glance
  • Employs both smoke and carbon monoxide sensors
  • Stand-alone battery-operated alarm is easy to install throughout the home, as no wiring is needed
  • Features a hush button to silence the alarm for non-emergency situations like a smoky dinner
  • Voice alarm eliminates confusion and clearly warns of smoke/CO danger or low battery


Protects from two different hazards, smoke and carbon monoxide, and has a different voice warning for each hazard. View larger.


The battery-operated KN-COSM-BA offers easy installation. View larger.
Combination Smoke/Carbon Monoxide Alarm
The Kidde combination carbon monoxide and smoke alarm includes a voice warning system that eliminates confusion and clearly warns you and your family of a smoke or carbon monoxide (CO) danger, of low battery, or of hush-mode setting.

Alarm Warnings
Fire: The red LED will flash and be accompanied by three long alarm beeps followed by a verbal warning message: "Fire! Fire!" The alarm will repeat the pattern until smoke is eliminated.

Carbon Monoxide: Four short alarm beeps followed by a verbal warning: "Warning--carbon monoxide!" This continues until the unit is reset or the CO is eliminated.

Low Battery: One chirp followed by warning: "Low battery." The red LED light will flash. This pattern will continue every minute for the first hour. After the first hour, the red LED light will flash once every minute and will be accompanied by the chirp sound. The low-battery warning will only sound once every 15 minutes.

Voice Hush Indication: "Hush activated" and "Hush canceled" voice announcement.

Peak Level Memory: If the alarm had detected a CO level of 100ppm or higher when the test/reset button is pressed, the unit will announce, "Carbon monoxide previously detected" to warn of the CO incident.

Trademarked Hush Feature for Convenience
By pressing the hush button, you can easily and safely silence nuisance alarms caused by non-emergency situations, such as overcooked dinners.

This feature desensitizes the alarm for approximately 10 minutes. If the smoke is not too dense, the alarm will silence immediately, the unit will verbally announce, "Hush mode activated," and the green LED will flash every two seconds for approximately 10 minutes.

Reliable Battery Power, Indicator LED, Test Feature and Low-Battery Warning
The battery-powered alarm provides continuous protection, even during power outages. Because this alarm only helps protect you if it's working, this unit features a red LED that flashes every 30 to 40 seconds to indicate that it is operating correctly. For additional peace of mind, the alarm also contains a test/reset button that enables you to periodically test its circuitry and horn.

If any form of battery failure is detected, the red LED light will flash and the unit will chirp one time, followed by the warning message, "low battery." This cycle will occur once every minute, and will continue for at least seven days.

Seven years after initial power up, this unit will chirp" every 30 seconds. This is an operational end-of-life feature that will indicate that it is time to replace the alarm. UL 2034, the independent standard applicable to CO alarms, requires CO alarms to have an end-of-life warning. This requirement went into effect in March 2007, meaning any CO alarm manufactured after April 2007 with a UL listing must have this feature. Most states that require CO alarms in residential dwellings mandate that the alarm meet the UL 2034 standard.

The unit measures just 5.75 inches in diameter and 1.7 inches deep, and it features a neutral white finish. It includes tamper-resistant features to deter vandalism or theft. This combination smoke/CO alarm is UL listed, so you can be confident of its quality, and it is backed by a ten-year limited warranty.

About Kidde: A UTC Fire and Security Brand
Renowned for global leadership in fire detection and suppression, Kidde provides solutions ranging from portable fire extinguishers to advanced industrial controls such as flame detection and explosion suppression systems. Kidde is a UTC Fire and Security brand, with a history that's rich with innovations, from the patent of the Chubb detector lock in 1818 to the development of the world's first wireless networked smoke detectors in 2004.

What's in the Box
Combination smoke and carbon monoxide alarm with mounting bracket and mounting hardware, three AA batteries, a and bilingual (English/Spanish) user's manual.


Customer Questions & Answers

Customer Reviews

Good product, works great and very easy to install.
Roy W. Scarlett
We have tested them and they work great - just hope we never actually need them.
C. OLSON
I love the voice that tells you if it's a fire or carbon monoxide alarm.
D. Bui

Most Helpful Customer Reviews

863 of 888 people found the following review helpful By RMT on December 7, 2008
Size Name: 1 Pack Verified Purchase
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 level of our home. One early Saturday morning we awoke to the voice of this alarm broadcasting, "WARNING! CARBON MONOXIDE DETECTED!" over and over again. I got out of bed and took the batteries out of the unit. By then my then 16 year old daughter came out of her room and was watching me. I told her to go back to bed, but she asked me why we weren't going outside to our designated emergency spot. I thought I was being a bad example after all the years of telling the children to get our of the house if an alarm went off. I didn't think there was a problem. I assumed the unit was broken or needed a new battery. I wasn't thinking clearly. So, I put the batteries back in to see if it would go off again. It did. She again asked why we weren't following the rules and going outside, so we left the house and called 911.

When the firemen arrived I kept apologizing for calling them to our home for an obvious mistake. I thought the firemen would tell us it was a false alarm. It wasn't. The heater core had cracked and was leaking carbon monoxide. The levels were high enough to make us confused, but not yet put us to sleep. Had my daughter not watched me handle the alarm I would have gone back to sleep without ever putting the batteries back in. We were very lucky to have my daughter and this CM detector.

The voice made everything so much clearer than just a siren. If it hadn't said "carbon monoxide" I would have left the batteries out and gone back to sleep because I couldn't see any smoke or fire and I was tired. I don't think I would have thought about carbon monoxide. It was well worth every penny. I now have CM detectors on every floor of my home. This talking carbon monoxide detector helped save my families life.
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Size Name: 1 Pack Verified Purchase
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 screwdriver 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.
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164 of 178 people found the following review helpful By moral.hazard on January 2, 2011
Size Name: 1 Pack
I just started renting a new home where the landlord has 3 of these detectors installed, one on each level. Today, my roommate and I decided to have a fire in the fireplace, then had to leave to grab something from the store. We extinguished the fire (we thought) and left, only to come back an hour later with the house completely filled with smoke. None of the detectors went off. It turns out the fire was still smoldering when we left, but we had closed the flue because we thought it was completely out. Thankfully there was no damage, just a thick smoke smell throughout the house, and it really was fortunate that we found out this way that the smoke detectors are useless.

For some reason, the house being entirely filled with smoke was not enough for the smoke detector to see any cause for alarm. I'm taking down all three detectors and replacing them with photoelectric detectors immediately; according to my research, photoelectric detectors are much less likely to cause false alarms from cooking smoke and are more reliable in detecting all kinds of fires, not just the hot flamey ones.

Also, carbon monoxide detectors should have a digital indicator of current CO levels, not just an alarm when the detector decides the levels are dangerous. A malfunctioning alarm could end up not signaling when even the lowest levels of CO are present and end up getting you sick or killed, whereas one with a digital readout will always tell you if there is ANY CO present in the home.
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478 of 542 people found the following review helpful By Cashewfeni on October 28, 2007
Size Name: 1 Pack Verified Purchase
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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