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Kidde

Kidde Carbon Monoxide Detector, Plug In Wall with AA Battery Backup, Test-Hush Button

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Availability: Only 1 left in stock, order soon!
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Arrives Dec 21 – Dec 27
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Style: Clamshell Packaging


Features

  • Easy Installation - simply plug-in to a standard, 120V outlet in your home
  • 2-AA battery backup provides protection during a power outage
  • 85-decibel alarm announces when carbon monoxide is detected
  • Peak Level Memory records the last time carbon monoxide was detected or when the unit was last tested
  • Test-Hush Button makes testing the detector or silencing false alarms easy
  • End of life chirp notifies you when the alarm needs to be replaced
  • UL listed with a 10-Year limited manufacturer warranty on the alarm only (not a battery performance claim). Warranty begins when the alarm is powered on. If that date is unknown, it should be assumed that replacement is needed.

Description

The Kidde Carbon Monoxide Detector, Plug In Wall with AA Battery Backup, Test- Hush Button uses electrochemical sensor technology to detect poisonous CO gas in your home and alert you by sounding an 85-decibel alarm. Setup is easy as the Kidde carbon monoxide alarm plugs into a standard, 120V AC power outlet in your home, while two AA alkaline batteries (included) work as a backup in the event of a power failure. When carbon monoxide is detected, the digital display shows the level of carbon monoxide the alarm is sensing and updates every 15 seconds. Peak Level Memory records the last time carbon monoxide was detected or when the unit was tested. The Smart-Hush button silences the unit for approximately 8 minutes, which is helpful when this smoke detector carbon monoxide detector combo sounds from things like routine cooking or shower steam. Install a carbon monoxide smoke detector combo on every level of your home and near bedrooms to help keep your family safe. UL Certified with a 10-year limited manufacturer's warranty. Meets requirements of UL 2034, UL217, NFPA72, (chapter 11 2002 edition) The State of California Fire Marshal, NFPA101 (One and two family dwellings) Federal Housing Authority (FHA), Housing and Urban Development (HUD).

Brand: Kidde


Style: Clamshell Packaging


Power Source: Plug In


Color: White


Product Dimensions: 1.5"D x 2.75"W x 4.05"H


Item Weight: 18 Grams


Alarm: Audible


Operating Humidity: 10% to 95% relative humidity, non-condensing


Upper Temperature Rating: 37.8 Degrees Celsius


Sensor Type: Electrochemical


Brand: ‎Kidde


Style: ‎Clamshell Packaging


Power Source: ‎Plug In


Color: ‎White


Product Dimensions: ‎1.5"D x 2.75"W x 4.05"H


Item Weight: ‎18 Grams


Alarm: ‎Audible


Operating Humidity: ‎10% to 95% relative humidity, non-condensing


Upper Temperature Rating: ‎37.8 Degrees Celsius


Sensor Type: ‎Electrochemical


Global Trade Identification Number: ‎91


Number of Items: ‎1


Manufacturer: ‎Kidde


UPC: ‎047871257591


Part Number: ‎900-0263


Item Weight: ‎0.635 ounces


Item model number: ‎KN-COB-DP2


Batteries: ‎2 AA batteries required. (included)


Is Discontinued By Manufacturer: ‎No


Size: ‎Pack of 1


Finish: ‎White


Pattern: ‎Detector


Voltage: ‎120 Volts


Item Package Quantity: ‎1


Included Components: ‎User manual, two AA batteries


Batteries Included?: ‎Yes


Batteries Required?: ‎Yes


Battery Cell Type: ‎Alkaline


Date First Available: July 22, 2014


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Dec 21 – Dec 27

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • The ideal Carbon Monoxide Alarm
Style: Clamshell Packaging
This is just the ideal Kidde Carbon Monoxide Alarm for me – simple, reliable, and affordable peace of mind. Installation could not have been simpler: plug it into a standard outlet, and you're ready to go. I prefer the slim design greatly; it does not take up the second outlet, so I can still use that area. Why I’m content with it: Easy to set up: No special tools or difficult setup — plug and play. Definitive signals: It features an easy-to-read digital display that can give confidence that it’s working properly. Loud Alarm: It is loud, as I have tried out and is able to wake me up or gain my attention quickly. Trustworthy brand: Kidde is a brand that can be trusted, and this smoke detector is robustly built. All in all, it gives me actual peace of mind that it is protecting my home. I'm likely to buy another soon for upstairs — would highly recommend! ... show more
Reviewed in the United States on July 18, 2025 by Lee Shand
    • Reliable Detector With One Important Thing to Know
Style: Clamshell Packaging
This carbon monoxide detector is simple, compact, and very easy to use. There isn’t much of a display—just an LED indicator—but it still does its job well and gives peace of mind once it’s plugged in. The alert tones are loud enough to hear from another room, which is great for safety. One thing other customers should definitely know: the low-battery/alert chirp sounds exactly like a standard fire alarm. When ours started chirping, we went around the house checking every single smoke detector before realizing it was actually this device. So if you hear a mystery chirp, make sure to check this unit too. Overall, it’s functional, straightforward, and provides solid leak detection. Just keep that identical chirp in mind and you’ll be all set. Highly recommend for an easy layer of home safety. ... show more
Reviewed in the United States on December 5, 2025 by Mike
    • Great carbon monoxide alarm
Style: Clamshell Packaging
This is replacing the last Kidde alarm that I owned, which was identical. It lasted 10 years without changing the battery and was very functional. It is reasonably priced, and I like the protection that it provides. Very easy to install. Just plug it in.
Reviewed in the United States on July 31, 2025 by Lemon Aide
    • Simple protection with easy setup and a loud alarm
Style: Clamshell Packaging
I picked up this carbon monoxide detector for our upstairs hallway. I didn’t want anything overly complicated, just something reliable that I could plug in and forget about unless something actually went wrong. So far, this one has been exactly that. Setup took less than a minute. I plugged it into a standard wall outlet, hit the test button, and the alarm sounded clearly and loudly. It also has a battery backup, which is important for me since we live in an area that gets occasional power outages. The design is compact and doesn’t block the second outlet, which is a nice touch. There’s a small indicator light that shows the unit is on and working. No screens, no digital readouts, just basic, no-nonsense monitoring. Pros: - Plug-and-go setup - Loud, clear alarm - Backup battery included - Doesn’t block both outlets Cons: - No digital display - Carbon monoxide detection only (not a combo unit) - No smart features for app alerts I’ve had it running for about three weeks and it’s doing exactly what I need. It’s ideal for anyone who just wants a straightforward CO detector without extra tech to manage. If you want something you can pair with a phone or that also detects smoke, this might not be the right model. But for basic carbon monoxide safety, it gets the job done. ... show more
Reviewed in the United States on July 6, 2025 by nahnahnahnah
    • Second time purchasing
Style: Clamshell Packaging
I’ve had this exact carbon monoxide detector in my home for the past 10 years, and it just recently gave me a notification that its life expectancy had expired. After a full decade of flawless performance, I didn’t even hesitate—I went out and bought the exact same brand again. Installation is super easy. It plugs right into any standard outlet, and I really appreciate that it also includes a battery backup. That gives me extra peace of mind knowing it’ll keep working even if the power goes out. What I value most is how reliable it’s been. It clearly notifies you when there’s an issue or when the unit needs replacing—no guessing games or worrying if it’s still functioning. It’s one of those quiet protectors in the background that just does its job. ... show more
Reviewed in the United States on July 19, 2025 by Sylvia
    • Portable for travel
Style: Clamshell Packaging
We got these for travel and have loved the portability of these carbon monoxide detectors. They are easy to use and the best value that we could find. I ended up purchasing two more sets for my kids. We just keep in our travel bags and are ready to use. We trust the functionality and accuracy to detect carbon monoxide leaks. ... show more
Reviewed in the United States on December 5, 2025 by Lindsay S.
    • Very nice and compact!
Style: Clamshell Packaging
Got this as a requirement to sell my condo. I would have bought more for my new place but they already had then. Well worth the purchase. I like that it is somewhat small unlike others that were bigger.
Reviewed in the United States on November 9, 2025 by Diana Thompson
    • Works as designed!
Style: Clamshell Packaging
Installs and works as designed!
Reviewed in the United States on November 7, 2025 by FordTech6600

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