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Carbon Monoxide Detectors Comparison - April 2025
| 1 Best Choice  9.8Exceptional | 2 Best Value  9.6Exceptional | 3  9.5Excellent | 4  9.4Excellent | 5  9.3Excellent | 6  9.2Excellent | 7  8.9Very Good |
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ModelKidde Carbon Monoxide Detector, Plug In Wall with AA Battery Backup, Test-Hush Button | Model Kidde Carbon Monoxide Detector, Battery Powered CO Alarm with LEDs, Test-Reset Button, Low Battery Indicator, Portable | Model Kidde Carbon Monoxide Detector, AA Battery Powered CO Alarm with LEDs, Test-Reset Button, Low Battery Indicator, Portable | Model X-Sense Carbon Monoxide Detector Alarm with Digital LCD Display, Replaceable Battery CO Alarm Detector with Peak Value Memory, XC01-R | Model First Alert CO400 Carbon Monoxide (CO) Detector, Battery Operated Alarm, 1-Pack | Model 2 Pack Carbon Monoxide Detectors,CO Detectors Battery Powered,Carbon Monoxide CO Alarms with Light&Digital Display for Home,Bedroom,Kitchen,Office | Model Carbon Monoxide Detectors, CO Detector Battery Powered, Carbon Monoxide Alarm with Sensitive CO Sensor, LCD Display and Sound Warning for Home, Bedroom, Kitchen |
BrandKidde | Brand Kidde | Brand Kidde | Brand X-Sense | Brand FIRST ALERT | Brand USBNOVEL | Brand SHYEEH |
Reviews | Reviews | Reviews  | Reviews | Reviews | Reviews | Reviews  |
Features | ||||||
Easy installation 9.8 | Easy installation 9.9 | Easy installation 9.8 | Easy installation 9.6 | Easy installation 9.4 | Easy installation 8.9 | Easy installation 8.6 |
Worth the money 9.6 | Worth the money 9.8 | Worth the money 9.4 | Worth the money 9.1 | Worth the money 9.1 | Worth the money 8.6 | Worth the money 8.4 |
Simple to use 9.6 | Simple to use 9.8 | Simple to use 9.9 | Simple to use 9.4 | Simple to use 9.1 | Simple to use 8.4 | Simple to use 8.1 |
Precision 9.6 | Precision 9.6 | Precision 9.4 | Precision 9.3 | Precision 9.3 | Precision 8.6 | Precision 8.6 |
Battery duration 9.4 | Battery duration 9.4 | Battery duration 9.1 | Battery duration 9.4 | Battery duration 9.1 | Battery duration 8.4 | Battery duration 8.1 |
Clearly written 9.6 | Clearly written 9.6 | Clearly written 9.8 | Clearly written 9.6 | Clearly written 9.4 | Clearly written 8.9 | Clearly written 8.6 |
Tech Specs | ||||||
item weight 0.635 ounces | item weight 8 ounces | item weight 0.16 ounces | item weight 3.2 ounces | item weight 7.2 ounces | item weight 6.7 ounces | item weight 3.84 ounces |
batteries included Yes | batteries included Yes | batteries included Yes | batteries included Yes | batteries included Yes | batteries included No | batteries included No |
power source Plug In | power source Battery Powered | power source Battery Powered | power source Battery Powered | power source Battery Powered | power source Battery Powered | power source Battery Powered |
customer reviews4.7 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 30, 639 ratings 4.7 out of 5 stars | customer reviews 4.7 out of 5 stars 17, 845 4.7 out of 5 stars | customer reviews 4.6 4.6 out of 5 stars 4, 569 ratings 4.6 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 4.8 4.8 out of 5 stars 20 ratings 4.8 out of 5 stars | customer reviews 4.5 4.5 out of 5 stars 48 ratings 4.5 out of 5 stars |
batteries required Yes | batteries required Yes | batteries required Yes | batteries required Yes | batteries required Yes | batteries required Yes | batteries required Yes |
product dimensions 2.75 x 1.5 x 4.5 inches | product dimensions 1.5D x 4.5W x 2.75H | product dimensions 1.5D x 4.5W x 2.75H | product dimensions 0.6D x 5.3W x 2.5H | product dimensions 1D x 5W x 3H | product dimensions 3.1 x 3.1 x 0.4 inches | product dimensions - |
included components two AA batteries, User manual | included components 21025778 Carbon Monoxide Alarm Battery | included components Kidde Battery Operated Carbon Monoxide Alarm with Digital Display KN-Copp-B-LPM | included components 1 Carbon monoxide detector, 1 CR123A Battery | included components Alarm Mounting Bracket User Manual 9V Battery | included components 2 Pack Carbon Monoxide Detectors | included components - |
color White | color White | color Detector | color White | color White | color - | color - |
batteries 2 AA batteries required. included | batteries 2 AAA batteries required. included | batteries 3 AA batteries required. included | batteries 1 Lithium Metal batteries required. included | batteries 2 AA batteries required. included | batteries - | batteries - |
pattern Detector | pattern Detector | pattern Detector | pattern Detector | pattern Detector | pattern - | pattern - |
item package quantity 1 | item package quantity 1 | item package quantity 1 | item package quantity 1 | item package quantity 1 | item package quantity - | item package quantity - |
style 1 Pack | style Detector Alarm | style - | style Digital | style Battery Powered | style - | style 1 Pack |
battery cell type Alkaline | battery cell type Alkaline | battery cell type Alkaline | battery cell type Lithium Metal | battery cell type Alkaline | battery cell type - | battery cell type - |
voltage 120 Volts | voltage 3 Volts | voltage 3 Volts | voltage - | voltage 120 Volts | voltage - | voltage - |
warranty description- | warranty description 10-Year warranty: Consult User Guide for more information. | warranty description 10 Year Limited | warranty description 60-day money-back guarantee and 5-year quality warranty and lifetime technical support | warranty description 5 Year Limited Warranty | warranty description - | warranty description - |
alarm- | alarm fire safety, battery powered, tamper-resistant | alarm Audible | alarm Audible | alarm Audible | alarm - | alarm - |
size- | size 1 Pack | size KN-COPP-B-LPM | size 1-Pack Standalone Model | size Pack of 1 | size - | size - |
sensor type- | sensor type Electrochemical | sensor type Electrochemical | sensor type Electrochemical | sensor type Electrochemical | sensor type - | sensor type - |
material- | material Carbon | material - | material ABS | material Multi | material - | material - |
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
9.6
2Kidde31% 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
3Kidde
Kidde Carbon Monoxide Detector, AA Battery Powered CO Alarm with LEDs, Test-Reset Button, Low Battery Indicator, Portable
9.9 Simple to use9.8 Easy installation9.8 clearly writtenWhy we love it
Easy installation, no wiring needed.
Portable and versatile for home or travel.
Reliable with a 10-year warranty.
Our ranking system
At BestChoice.com, our team curates a selection of top products from a vast array available online, using a sophisticated ranking system based on carefully defined criteria.While traditional hands-on testing has its merits, our use of AI technology offers distinct advantages. AI allows us to process and analyze vast amounts of data from multiple sources, providing a comprehensive view that goes beyond what manual testing can achieve. This approach enables us to deliver insights that are aligned with current trends and consumer preferences, ensuring our reviews are both relevant and up-to-date.
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.
