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

by Kidde

Product Description

Amazon.com Product Description

The Kidde KN-COSM-B Battery-Operated Carbon Monoxide and Smoke Alarm combines two important safety devices into 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 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 insure maximum detection of the various types of fire that can occur within the home.

Kidde KN-COSM-B Battery-Operated Combination Smoke and CO Alarm 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. Fire voice warning: View Movie Carbon monoxide voice warning: View Movie

The battery operated KN-COSM-B offers easy installation. View larger.

Combination Smoke/Carbon Monoxide Alarm
The Kidde Combination Carbon Monoxide & 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, or if your battery is in need of replacement or your alarm is in hush mode.

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. View movie showing voice warning

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. View movie showing voice warning

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 fifteen 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 2 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 (7) years after initial power up, this unit will "chirp" every 30 seconds. This is an "operational end of life" feature which 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 resist 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 5-year limited warranty.

About Kidde: A UTC Fire & 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 & 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 5-year limited warranty and a bilingual (English/Spanish) user's manual.

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’s voice warning system 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 and replace smoke alarms every ten years.

Product Details

Spec Sheet [PDF]

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Learn About Carbon Monoxide Hazards [292kb PDF]

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Product Manual [604kb PDF]

• Product Dimensions: 5.5 x 5.5 x 2 inches ; 12.5 ounces
• Shipping Weight: 13.6 ounces (View shipping rates and policies)
• Shipping: Currently, item can be shipped only within the U.S. and to APO/FPO addresses. For APO/FPO shipments, please check with the manufacturer regarding warranty and support issues.
• ASIN: B00004WA4C
• Item model number: 900-0102-02
• Batteries: 3 AA batteries required.
• Average Customer Review: 4.1 out of 5 stars  See all reviews (200 customer reviews)
• Amazon Best Sellers Rank: #27 in Home Improvement (See Top 100 in Home Improvement)
  • #1 in Home Improvement > Safety & Security > Fire Safety > Carbon Monoxide Detectors
  • #1 in Home Improvement > Safety & Security > Fire Safety > Smoke Alarms
  • #1 in Home Improvement > Safety & Security > Fire Safety > Combination Smoke & Carbon Monoxide Detectors

Customer Reviews

Most Helpful Customer Reviews

152 of 155 people found the following review helpful:

5.0 out of 5 stars SAVED MY FAMILIES LIFE!!!, December 7, 2008

By 

RMT "RMT" (Virginia USA) - See all my reviews

This review is from: Kidde KN-COSM-B Battery-Operated Combination Carbon Monoxide and Smoke Alarm with Talking Alarm (Tools & Home Improvement)

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.

118 of 125 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

By 

Blair "blair52" (USA) - See all my reviews

This review is from: Kidde KN-COSM-B Battery-Operated Combination Carbon Monoxide and Smoke Alarm with Talking Alarm (Tools & Home Improvement)

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.

193 of 213 people found the following review helpful:

1.0 out of 5 stars Not sure about this product, October 28, 2007

By 

Cashewfeni (Reston, VA) - See all my reviews

Amazon Verified Purchase

This review is from: Kidde KN-COSM-B Battery-Operated Combination Carbon Monoxide and Smoke Alarm with Talking Alarm (Tools & Home Improvement)

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.