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Carbon Monoxide Detectors Comparison - April 2025
| 1 Best Choice  9.8Exceptional | 2 Best Value  9.5Excellent | 3  9.3Excellent | 4  9.2Excellent | 5 9.1Excellent | 6  8.9Very Good | 7  8.7Very Good |
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ModelKidde Carbon Monoxide Detector, Battery Powered CO Alarm with LEDs, Test-Reset Button, Low Battery Indicator, Portable | Model Kidde Carbon Monoxide Detector, Plug In Wall with 9-Volt Battery Backup, Digital LED Display | Model Kidde Carbon Monoxide Detector, Plug In Wall with AA Battery Backup, Test-Hush Button | Model First Alert CO605 Plug-In Carbon Monoxide Detector with Battery Backup , White | Model First Alert CO400 Carbon Monoxide (CO) Detector, Battery Operated Alarm, 1-Pack | Model 4-in-1 Upgraded Combination Natural Gas Leak Detector and Carbon Monoxide Detectors, Dual Sensor Gas Leak Detector & Carbon Monoxide Detectors Plug in (Temperature & Humidity Sensor) for Home, RV | Model Carbon Monoxide Detector, Replaceable Battery-Operated Carbon Monoxide Alarm Detectors with Digital Display & LED Lights. CO Alarm Applicable to Home, Warehouse |
BrandKidde | Brand Kidde | Brand Kidde | Brand FIRST ALERT | Brand FIRST ALERT | Brand NORJAN | Brand JYSONGHU |
Reviews | Reviews  | Reviews | Reviews | Reviews | Reviews  | Reviews |
Features | ||||||
Easy installation 9.9 | Easy installation 9.9 | Easy installation 9.8 | Easy installation 9.8 | Easy installation 9.4 | Easy installation 8.9 | Easy installation 9.4 |
Worth the money 9.8 | Worth the money 9.6 | Worth the money 9.6 | Worth the money 9.4 | Worth the money 9.1 | Worth the money 8.6 | Worth the money 9.9 |
Simple to use 9.8 | Simple to use 9.6 | Simple to use 9.6 | Simple to use 9.6 | Simple to use 9.1 | Simple to use 8.4 | Simple to use 9.4 |
Precision 9.6 | Precision 9.6 | Precision 9.6 | Precision 9.3 | Precision 9.3 | Precision 8.6 | Precision 9.1 |
Battery duration 9.4 | Battery duration 9.6 | Battery duration 9.4 | Battery duration 9.3 | Battery duration 9.1 | Battery duration 8.6 | Battery duration 9.4 |
Clearly written 9.6 | Clearly written 9.6 | Clearly written 9.6 | Clearly written 9.6 | Clearly written 9.4 | Clearly written 8.9 | Clearly written 9.1 |
Lasts a long time 9.6 | Lasts a long time 9.8 | Lasts a long time 9.6 | Lasts a long time 9.3 | Lasts a long time 8.6 | Lasts a long time 7.9 | Lasts a long time 9.4 |
Tech Specs | ||||||
color White | color White | color White | color White | color White | color Black | color white |
customer reviews4.7 4.7 out of 5 stars 30, 639 ratings 4.7 out of 5 stars | customer reviews 4.7 4.7 out of 5 stars 26, 314 ratings 4.7 out of 5 stars | customer reviews 4.7 4.7 out of 5 stars 32, 430 ratings 4.7 out of 5 stars | customer reviews 4.7 4.7 out of 5 stars 18, 035 ratings 4.7 out of 5 stars | customer reviews 4.7 4.7 out of 5 stars 19, 319 ratings 4.7 out of 5 stars | customer reviews 4.7 4.7 out of 5 stars 10 ratings 4.7 out of 5 stars | customer reviews 4.4 4.4 out of 5 stars 268 ratings 4.4 out of 5 stars |
item weight 8 ounces | item weight 1.05 pounds | item weight 0.635 ounces | item weight 4.2 ounces | item weight 7.2 ounces | item weight 0.18 Ounces | item weight 3.2 ounces |
power source Battery Powered | power source Plug In | power source Plug In | power source Corded Electric | power source Battery Powered | power source AC | power source Battery Powered |
included components 21025778 Carbon Monoxide Alarm Battery | included components one user manual, one 9V battery, one CO alarm, model KN-COPP-3, one mounting hardware packet for wall-mount option | included components two AA batteries, User manual | included components Alarm, Battery | included components Alarm Mounting Bracket User Manual 9V Battery | included components - | included components Detector |
alarm fire safety, battery powered, tamper-resistant | alarm Audible | alarm - | alarm Carbon Monoxide | alarm Audible | alarm Audible and Visual | alarm Audible |
product dimensions 1.5D x 4.5W x 2.75H | product dimensions 1.75D x 3.75W x 6.06H | product dimensions 2.75 x 1.5 x 4.5 inches | product dimensions 1.38D x 5W x 3.4H | product dimensions 1D x 5W x 3H | product dimensions - | product dimensions 3.94D x 3.94W x 1.57H |
voltage 3 Volts | voltage 120 Volts | voltage 120 Volts | voltage 120 Volts | voltage 120 Volts | voltage - | voltage 4.5 Volts |
style Detector Alarm | style Detector | style 1 Pack | style Plug in Alarm with Battery Backup | style Battery Powered | style - | style Modern |
sensor type Electrochemical | sensor type Ionization | sensor type - | sensor type Electrochemical | sensor type Electrochemical | sensor type Catalytic | sensor type Electrochemical |
batteries required Yes | batteries required Yes | batteries required Yes | batteries required Yes | batteries required Yes | batteries required - | batteries required No |
pattern Detector | pattern Detector | pattern Detector | pattern Alarm | pattern Detector | pattern - | pattern - |
batteries included Yes | batteries included Yes | batteries included Yes | batteries included Yes | batteries included Yes | batteries included - | batteries included - |
battery cell type Alkaline | battery cell type Alkaline | battery cell type Alkaline | battery cell type Alkaline | battery cell type Alkaline | battery cell type - | battery cell type - |
batteries 2 AAA batteries required. included | batteries 2 AAA batteries required. included | batteries 2 AA batteries required. included | batteries 1 9V batteries required. included | batteries 2 AA batteries required. included | batteries - | batteries - |
operating humidity 5 to 95 relative humidity, non-condensing | operating humidity 5 to 95 relative humidity, non-condensing | operating humidity - | operating humidity - | operating humidity - | operating humidity 0-99 5 | operating humidity 85 percent |
warranty description 10-Year warranty: Consult User Guide for more information. | warranty description 10 Year Limited | warranty description - | warranty description 7 Years Limited | warranty description 5 Year Limited Warranty | warranty description - | warranty description - |
item package quantity 1 | item package quantity - | item package quantity 1 | item package quantity 1 | item package quantity 1 | item package quantity - | item package quantity - |
size 1 Pack | size 1 Pack | size - | size 1-Pack | size Pack of 1 | size - | size - |
material Carbon | material ABS | material - | material Plastic | material Multi | material - | material - |
upper temperature rating 100 Degrees Fahrenheit | upper temperature rating 37.8 Degrees Celsius | upper temperature rating - | upper temperature rating 105 Degrees Fahrenheit | upper temperature rating - | upper temperature rating - | upper temperature rating - |
certification not applicable | certification Yes | certification - | certification - | certification UL2034 | certification - | certification - |
Review- | Review | Review - | Review | Review | Review - | Review - |
Available On   | Available On  | Available On | Available On | Available On | Available On | Available On |
Our Top 3 Picks
Here are the top 3 recommended products with more information to help you find the right product for you
9.8
1Kidde31% OffKidde Carbon Monoxide Detector, Battery Powered CO Alarm with LEDs, Test-Reset Button, Low Battery Indicator, Portable
9.9 Easy installation9.8 worth the money9.8 Simple to useWhy we love it
Easy installation, no wiring needed.
Portable and versatile placement options.
Loud alarm ensures effective alerting.
-
9.5
2Kidde39% Off
Kidde Carbon Monoxide Detector, Plug In Wall with 9-Volt Battery Backup, Digital LED Display
9.9 Easy installation9.8 lasts a long time9.6 worth the moneyWhy we love it
Easy to install and use.
Digital display provides clear CO levels.
Battery backup ensures continuous protection.
Carbon Monoxide Detectors Buyer's Guide
Written by Ryanne BrownIntroduction to Carbon Monoxide Detectors
Carbon monoxide (CO) detectors are essential devices used to detect the presence of carbon monoxide in the atmosphere. Carbon monoxide is a highly toxic, odorless, and colorless gas that can cause serious health issues and even death if inhaled. Carbon monoxide detectors are designed to detect the presence of this gas and alert the occupants before it reaches dangerous levels. They are an important tool for ensuring the safety of your family and property.
Types of Carbon Monoxide Detectors
Carbon monoxide detectors come in many different shapes, sizes, and types. The most common types are plug-in detectors, battery-powered detectors, and hard-wired detectors. Plug-in detectors are simple to install and require no wiring. They plug directly into an electrical outlet and are often low-cost. Battery-powered detectors are more expensive but require no wiring and are portable. Hard-wired detectors are the most expensive option but they offer a permanent solution and are the most reliable.
Features of Carbon Monoxide Detectors
When shopping for a carbon monoxide detector, there are several features to consider. The most important feature is the detection range of the detector. This refers to the maximum distance the detector can detect carbon monoxide. The higher the range, the better the protection. Other features to consider include alarm type, alarm volume, power source, and battery life. Additionally, some detectors come with additional features such as digital displays, voice alerts, and more.
Installation of Carbon Monoxide Detectors
Installing a carbon monoxide detector is easy, but it should be done properly to ensure it works correctly. The most important rule is to install the detector near the source of the potential CO leak. This means near any gas appliances or in the hallway or kitchen. The detector should be mounted at least 15 feet away from any gas appliance. Once installed, the detector should be tested regularly to ensure it is functioning correctly.
Maintenance of Carbon Monoxide Detectors
It is important to regularly maintain your carbon monoxide detector to ensure it is working properly. This includes testing the detector on a regular basis and cleaning it as needed. The batteries should also be changed regularly. Additionally, the detector should be replaced every five to seven years to ensure it is still functioning properly.
Conclusion
Carbon monoxide detectors are an essential safety device for any home or business. They are designed to detect the presence of carbon monoxide and alert the occupants before it reaches dangerous levels. There are several different types of carbon monoxide detectors available, each with their own features and benefits. It is important to install the detector properly and maintain it regularly to ensure it is working correctly.
Our ranking system
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Features
Our AI-driven analysis examines key attributes, capabilities, and other critical factors tailored to each product category. This method allows us to assess effectiveness from various perspectives, ensuring a well-rounded evaluation.
Consumer Reviews
We aggregate and evaluate consumer feedback from across the internet, giving weight to ratings and reviews that reflect the most reliable insights. AI enhances this process by filtering and prioritizing data, offering a balanced view without the need for direct personal endorsements.
Popularity
Our system also considers the popularity of products, analyzing factors such as market presence, reputation, and user satisfaction. By leveraging AI, we capture a comprehensive picture of a product's standing in the market, which may not always be evident through traditional testing.
Value for money
AI allows us to compare products based on attributes like price, specifications, and user feedback, helping to determine their value for money. This data-driven approach offers an efficient and reliable way to assess how products stack up against one another in terms of cost-effectiveness.
