Search

*Disclaimer: Tossions earns a commission from qualifying purchases.

The 8 Best kidde carbon monoxide detectors of 2025

Are you trying to find kidde carbon monoxide detectors among various brands on the market but aren’t sure where to begin? To assist you in finding the right one, we’ve put together a list of the 7 best to help you pick the perfect one!

We investigated and evaluated a number of the top-selling kidde carbon monoxide detectors on the market in order to create our list of the best. Making a decision among the many options available is never simple. There are an infinite number of models available, each with a distinct price. And as you’ll find out, the best options aren’t usually the ones you imagine! This comparison is rich and relevant because of the numerous factors that were employed. You will find products featured in this ranking not only based on their pricing but also on their features and other customers reviews. To write this review, we completed 22 hours of research and did 33 kidde carbon monoxide detectors tests. You won’t need to pick products at random any more. If you’re unsure of what to look for, browse our list and consult the buying guide!

An overview of our top picks

Table of contents

The best kidde carbon monoxide detectors you can buy today

SaleNo. 1
Kidde Carbon Monoxide Detector, Battery Powered CO Alarm with LEDs, Test-Reset Button, Low Battery Indicator, Portable
  • Electrochemical sensor technology detects CO gas
  • Easy installation, no wiring needed, detects during a power failure by operating on 2-AA batteries (included)
  • Conveniently designed & portable: simple to install on a wall of your home or place on a tabletop
  • Green LED indicates power to the carbon monoxide detector, while an 85-decibel alarm & a red LED indicates the presence of carbon monoxide
  • Event Memory records the last time carbon monoxide was detected or when the unit was last tested
SaleNo. 2
Kidde Carbon Monoxide Detector, Plug In Wall with AA Battery Backup, Test-Hush Button
30,774 Consomer Reviews
Kidde Carbon Monoxide Detector, Plug In Wall with AA Battery Backup, Test-Hush Button
  • 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.
No. 3
Kidde Carbon Monoxide Detector, AA Battery Powered CO Alarm with LEDs, Test-Reset Button, Low Battery Indicator, Portable
  • Electrochemical sensor technology detects CO gas
  • Easy installation, no wiring needed, detects during a power failure by operating on 2-AA batteries (included)
  • Conveniently designed & portable: simple to install on a wall of your home or place on a tabletop
  • Green LED indicates power to the smoke detector, while an 85-decibel alarm & a red LED indicates the presence of carbon monoxide
  • Peak Level Memory records the last time carbon monoxide was detected or when the unit was last tested
  • Test-Hush button makes it easy to test the carbon monoxide detector or temporarily silence the low battery chirp warning
  • 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.
SaleNo. 4
Kidde Carbon Monoxide Detector, Plug In Wall with 9-Volt Battery Backup, Digital LED Display
26,498 Consomer Reviews
Kidde Carbon Monoxide Detector, Plug In Wall with 9-Volt Battery Backup, Digital LED Display
  • Easy Installation - simply plug-in to a standard, 120V outlet in your home
  • 9-volt battery backup provides protection during a power outage
  • Digital LED display shows the level of carbon monoxide the CO alarm is sensing
  • 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
SaleNo. 5
Kidde Carbon Monoxide Detector with 10-Year Battery, Digital Display, 3 LEDs, Replacement Indicator, Peak Level Memory
  • Electrochemical sensor technology detects CO gas & sounds an 85-decibel alarm
  • Easy installation, no wiring needed: operates on a 10-year lithium battery, so it never needs replacing, plus detects during power failure
  • Digital display updates every 15 seconds & displays the level of CO presence
  • Conveniently designed & portable: simple to install on a wall of your home or place on a tabletop
  • 3 LEDs indicate: green = normal operation, red = carbon monoxide presence (sounded with an 85-decibel alarm), & amber = replace the detector
  • Peak Level Memory records the last time carbon monoxide was detected or when the unit was last tested
  • Test-Hush button makes it easy to test the carbon monoxide detector or temporarily silence the low battery chirp warning
  • UL Certified, 10-year limited manufacturer warranty
SaleNo. 6
Kidde Carbon Monoxide Detector, Propane, Natural, Methane, & Explosive Gas Alarm, Plug-In Wall with 9-Volt Battery Backup, Digital LED Display
  • Easy Installation - simply plug-in to a standard, 120V outlet in your home
  • 9-volt battery backup provides protection during a power outage
  • Digital LED display shows the level of carbon monoxide the CO alarm is sensing or states "GAS" when explosive gas is present
  • 85-decibel alarm announces when carbon monoxide or explosive gas is detected
  • Peak Level Memory records the last time carbon monoxide was detected or when the unit was last tested
SaleNo. 7
Kidde Hardwired Carbon Monoxide Detector with 9-Volt Battery Backup, 3 LED Indicators
  • Electrochemical sensor technology detects CO gas
  • Carbon monoxide alarm operates on a 120V wired power source with a 9-Volt alkaline battery backup (included)
  • An 85-decibel alarm sounds & a red LED indicates the CO detector is sensing poisonous carbon monoxide gas
  • Green LED indicates power to the carbon monoxide detector, while an 85-decibel alarm & a red LED indicates the presence of carbon monoxide
  • Interconnection capability: allows you to connect up to 24 Kidde smoke, heat, or CO alarms, with the possibly it interconnect 6 strobe lights or relay modules
  • The unit will chirp at the end of the alarm life, indicating that the alarm is in need of replacement
  • 10-Year Limited Manufacturer's Warranty on the Alarm Only: warranty begins when the CO alarm is powered on. If that date is unknown, it should be assumed that alarms should be replaced. The 10-Year limited warranty is not a battery performance claim.
SaleNo. 8
Kidde Smoke Detector & Carbon Monoxide Detector Combo with 10-Year Battery,‎White
  • 2-in-1 Detection - Smoke & carbon monoxide detector combo alerts you to both smoke & fire events as well as poisonous, CO gas in a single device
  • Photoelectric sensor detects visible fire particles associated with slow, smoldering fires, while the electrochemical sensor detects carbon monoxide
  • An 85-decibel alarm sounds & a red LED indicates the smoke detector is sensing smoke or fire
  • Lithium battery operated: eliminates the need for battery replacement & provides reliable detection, even during power outages
  • Test-Hush button makes it easy to test the smoke detector and silence false alarms that occur from cooking or shower steam
  • The alarm will automatically activate when it is attached to the mounting bracket, there are no pull tabs, no switches, everything is automatic
  • At the end of alarm life, the unit will chirp, indicating the alarm is in need of replacement
  • 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.
SaleNo. 9
Kidde Carbon Monoxide Detector with 10-Year Battery, 3 LEDs, Replacement Indicator, Test-Reset Button
  • Electrochemical sensor technology detects CO gas
  • Easy installation, no wiring needed: operates on a 10-year lithium battery, so it never needs replacing, plus detects during power failure
  • Conveniently designed & portable: simple to install on a wall of your home or place on a tabletop
  • 85-decibel alarm alerts to carbon monoxide
  • 3 LEDs indicate: green = normal operation, red = carbon monoxide presence, & amber = replace the detector
  • Test-Hush button makes it easy to test the carbon monoxide detector or temporarily silence the low battery chirp warning
  • UL Certified, 10-year limited manufacturer warranty
SaleNo. 10
Kidde Hardwired Carbon Monoxide Detector with 9-Volt Battery Backup, Digital LED Display 5.75 diameter x 1.8 depth
  • Carbon monoxide alarm operates on a 120V wired power source with a 9-Volt alkaline battery (included)
  • Digital LED display shows the level of carbon monoxide the CO alarm is sensing
  • 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
  • Electrochemical sensor technology detects poisonous carbon monoxide gas inside your home
  • 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.
No. 11
Kidde Smoke & Carbon Monoxide Detector, AA Battery Powered, LED Warning Light Indicators, 1 Pack
  • 2-in-1 Detection - Smoke & carbon monoxide detector combo alerts you to both smoke & fire events as well as poisonous, CO gas in a single device
  • 24/7 Self-testing components are always checking the device to ensure it's operating as expected (not a substitute for a manual push test)
  • Easy installation mounting bracket included for quick installation in 4 orientations
  • Photoelectric sensor detects visible fire particles associated with slow, smoldering fires, while the electrochemical sensor detects carbon monoxide
  • 85-decibel alarm & LED warning indicators alert you to various status: green = normal operation, amber = operating error, and red = smoke, fire or carbon monoxide event
  • Battery operated to provide reliable detection, even during power outages; two AA batteries included
  • UL Listed with a 10-year limited warranty which begins when the alarm is powered on, if that date is unknown it should be assumed the alarm should be replaced.
SaleNo. 12
Kidde Hardwired Smoke & Carbon Monoxide Detector, AA Battery Backup, Interconnectable, LED Warning Light Indicators
  • 24/7 Self-testing components are always checking the device to ensure it's operating as expected (not a substitute for a manual push test)
  • Easy installation mounting bracket included for quick installation in 4 orientations
  • Photoelectric sensor detects visible fire particles associated with slow, smoldering fires, while the electrochemical sensor detects carbon monoxide
  • 85-decibel alarm & LED warning indicators alert you to various status: green = normal operation, amber = operating error, and red = smoke, fire or carbon monoxide event
  • Battery operated to provide reliable detection, even during power outages; two AA batteries included
  • 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.
SaleNo. 13
Kidde Smoke & Carbon Monoxide Detector, 10-Year Battery, Voice Alerts , 1 Count ( Pack of 1)
  • 2 units in 1: unit alerts you to smoke & carbon monoxide by sounding a loud, 85-decibel alarm & sounding voice alerts
  • Photoelectric sensor technology senses visible fire particles, while a electrochemical sensor detects CO gas
  • Voice Alarm & an 85-decibel alarm announces a hazard when detected: “Fire!” = smoke or fire or “Warning Carbon Monoxide” = CO gas, or "Replace Alarm" when the alarm has reached its end of life span
  • Operates on a 10-year lithium battery, eliminating the need for battery replacement, while providing reliable detection during a power failure
  • Combination fire alarm automatically activates when it is attached to the mounting bracket
  • Test-Hush Button makes testing the detector or silencing false alarms easy (false alarms may occur from routine cooking, shower steam, dust or humidity)
  • 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.
No. 14
Kidde Smoke & Carbon Monoxide Detector, Hardwired Interconnect, Combination Smoke & CO Alarm with Battery Backup, Voice Alerts
  • Smoke detector carbon monoxide detector combo – sounds loud 85 decibel alarm with voice alerts that announce "Fire! Fire!" or "Warning! Carbon Monoxide!"
  • Hardwired with backup battery - combo smoke and carbon monoxide detector is hardwired into a 120V power source with 9V battery backup
  • Easy installation – battery door is on the front for quick replacement
  • Photoelectric smoke detector senses visible fire particles and electrochemical CO detector provides accurate readings
  • UL Certified, 10-year limited warranty
  • Will interconnect with up to 24 other devices including smoke, CO and heat alarms
SaleNo. 15
Kidde Smart Carbon Monoxide Detector & Indoor Air Quality Monitor, Plug In Wall, WiFi, Alexa Compatible Device, Voice & App Alerts
  • Industry First: 2-in-1 Detection - Carbon monoxide detector & Indoor Air Quality Monitor combo alerts you to both CO & indoor air quality hazards, in a single device
  • Voice Alarm announces the hazard type when detected: “Warning Carbon Monoxide” = CO gas, or "Replace Alarm" when the unit has come to its end of life span
  • Easy Installation: download the Kidde app, scan the QR code on the back of the CO alarm, & plug into a standard outlet
  • Compatible with Amazon Alexa, Google Home, iPhone, & Android smart devices
  • Indoor Air Quality Monitoring: monitors harmful chemicals known as Total Volatile Organic Compounds (TVOCs) that come from cleaning products & paint, also monitors humidity
No. 16
Kidde Intelligent Smoke & Carbon Monoxide Detector, Battery Powered, Combination Smoke & CO Alarm with Voice Alert
  • Fire & CO detector in 1 unit with alert modes, LED lights, & voice alarm, that states, "Fire Fire", "Warning Carbon Monoxide", or "Low Battery"
  • Ionization & Electrochemical sensor technologies - smoke detector detects invisible fire particles, while the CO alarm detects poisonous carbon monoxide gas; 85 decibel alarm alerts of fire
  • Non Wired Unit protects during a power failure - combo smoke and CO alarm operates on 2-AA batteries
  • Test-Hush Feature - silences the unit for approximately 9 minutes
  • UL Certified, 10-year limited warranty
No. 17
Kidde Hardwired Smoke & Carbon Monoxide Detector, AA Battery Backup, Voice Alerts, Interconnectable, LED Warning Light Indicators, 2 Pack
  • 2-in-1 Detection - Smoke & carbon monoxide detector combo alerts you to both smoke & fire events as well as poisonous, CO gas in a single device
  • Voice Alarm announces the hazard type when detected: “Fire!” = smoke or fire, “Warning Carbon Monoxide” = CO gas, or "Low Battery" when the batteries need to be replaced
  • 85-decibel alarm alerts to smoke, fire, or carbon monoxide
  • 24/7 Self-testing components are always checking the device to ensure it's operating as expected (not a substitute for a manual push test)
  • Whole-Home Alarm Activation - expands detection via hardwired connections to other Kidde smoke alarms, so when 1 alarm sounds, they all do**
  • Easy Installation - Mounting bracket included for quick installation in 4 orientations
  • 120V AC hardwired with 2-AA battery backup (included) - provides reliable protection, even during power failures
  • UL Listed with a 10-year limited warranty which begins when the alarm is powered on, if that date is unknown it should be assumed the alarm should be replaced.
No. 18
Kidde Carbon Monoxide Detector, Battery Powered CO Alarm with LEDs, Test-Reset Button, Low Battery Indicator, Portable, 6 Pack
  • Electrochemical sensor technology detects CO gas
  • Easy installation, no wiring needed, detects during a power failure by operating on 2-AA batteries (included); Install on a wall of your home or place on a tabletop
  • Easy to take along for hotel and vacation rental monitoring
  • Green LED indicates power to the carbon monoxide detector, while an 85-decibel alarm & a red LED indicates the presence of carbon monoxide
  • Event Memory records the last time carbon monoxide was detected or when the unit was last tested
  • Test-Hush button makes it easy to test the carbon monoxide detector or temporarily silence the low battery chirp warning
  • 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.
SaleNo. 19
Kidde Ultra-Sensitive Carbon Monoxide Detector for Pets, Health, or Medical Conditions, Battery Powered with Digital Display, UNIT
  • Electrochemical sensor will detect low levels of CO (below 30 PPM) for family members or pets, specifically those who have medical conditions
  • CO alarm will sound at 85 decibels if carbon monoxide is present - easy installation includes a wall mount or table top placement
  • Protects during a power failure - operates on 3-AA batteries, included with pack
  • Digital display features an advanced level of monitoring showing CO levels as low as 10 PPM
  • 10 Year end of life warning alerts user to replace CO monitor after 10 years of operation
SaleNo. 20
Kidde Carbon Monoxide Detector, Plug In Wall with 9-Volt Battery Backup, Digital LED Display - 2 Pack
  • Easy Installation - simply plug-in to a standard, 120V outlet in your home
  • 9-volt battery backup provides protection during a power outage
  • Digital LED display shows the level of carbon monoxide the CO alarm is sensing
  • 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

How to choose a good kidde carbon monoxide detectors

Does the idea of finding a fantastic kidde carbon monoxide detectors make you anxious? When it comes to purchasing this product, specifically when deciding which model to select, has your head been spinning between options? You are not alone if that is the case. We are aware of the pressure involved in the purchasing process!

Your presence here indicates that you are interested in kidde carbon monoxide detectors. Before choosing which product would be the best for your needs after being inundated with information, locate a reliable source with genuine selections. You can get that information from a variety of sources, including buying guides and rating websites, word-of-mouth recommendations from friends and family, online discussion forums where users can share their own experiences, product reviews that can be found all over the internet, and YouTube channels. You can only get the right product through exhaustive analysis. But you realize that’s not always simple. In order to ease your concerns, we have taken the time to develop a list of the top kidde carbon monoxide detectors products available right now. You might be wondering how we came up with the list. How was this buying guide developed?

First, we used our algorithms to gather as much reliable data as we could about these products. To verify all the data gathered, we used both artificial intelligence and a lot of algorithms.
Then, our experts used criteria that are recognized in the business to evaluate them according to their quality to price ratio, allowing us to choose the top kidde carbon monoxide detectors on the market right now!

The selection of the goods is not arbitrary. Before creating a list, we take into account a number of factors. Below are some of the criteria discussed:

Brand Value: What happens if you choose a dubious brand just because it appears to be a good deal? So the likelihood of receiving a product with a short shelf life increases. That is due to the fact that well-known brands have a reputation to uphold, while others do not. Top kidde carbon monoxide detectors brands strive to provide some distinctive traits that set them apart from the competition. So, hopefully one or more of the items on our list will be perfect for you.

Features: Useful features are all you need, not tons of them. We consider the important aspects and select the top kidde carbon monoxide detectors based on those.

Specifications: Numbers always help you measure the quality of a product in a quantitative way. We try to find products with higher specifications, but with the right balance.

Quality: A product’s quality may always be quantified with the aid of numbers. We look for goods with better standards that strike the proper balance. The best quality product that gets highly appreciated and recommended by experienced users.

Customer ratings:  Would it be accurate to suggest that the kidde carbon monoxide detectors were used by hundreds of customers before you? Superior ratings indicate that many customers had better service.

Customer Reviews: Like ratings,  provide you with accurate and reliable information about the product from genuine customers. Customer ratings are very important to all of us because they contain accurate and reliable information about the customer service we received from several hundred customers.

Seller Rank: This is very intriguing! Not only do you need a good kidde carbon monoxide detectors, you also need a product with rising sales that is trendy. It accomplishes two goals. First, the expanding user base proves the quality of the product. Second, given that number, producers must be able to offer greater quality and after-sales support.

Value: You get what you pay for, they say, so consider the value. Cheap isn’t always good and expensive isn’t always bad. However, that does not imply that spending a lot of money on a product that is flashy but underwhelming is a good idea. Before adding them to the list, we make an effort to evaluate how much value you can get for your money from your kidde carbon monoxide detectors.

Durability: Durability and reliability are closely related concepts. You will benefit from a strong and long-lasting kidde carbon monoxide detectors for months and years to come.

Product availability: Products come and go, and new ones replace the old ones. Most likely, a few new features and required changes were made. What use is it to use a supposedly good product if the maker no longer supports it? We make an effort to highlight products that are current and offered by one or more trustworthy sellers, if not more.

Negative Reviews: Yes, we do take that into account as well! The goods with the majority of bad reviews are filtered out and disregarded when we choose the best-rated one on the market.

These are the standards by which we selected our kidde carbon monoxide detectors. Do we end our process there? Hell no. The most crucial fact about us that you should be aware of is that we regularly update our website with current and pertinent information. We have one more layer of filtration since we place the greatest importance on reader satisfaction. Please let us know if any product included here is incorrect, irrelevant, subpar, or simply out of date. We always value your opinions, and we’ll work hard to make any necessary corrections to our list in response to them.

Why should you believe us?

There are now thousands of possibilities for these products on Amazon, but choosing the best one can be difficult and time-consuming. And what kidde carbon monoxide detectors should you purchase in 2022?

This guide is the result of more than 10 years of experience in researching, testing and writing about many topics. Each member of our team is an authority in their area. We read every article we could find online and every consumer review on every retail website for seven hours. Additionally, we discovered a ton of websites that offered helpful resources, including buying tips and thorough information on kidde carbon monoxide detectors.