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Carbon Monoxide Detectors Comparison - August 2025
6 Best Carbon Monoxide Detectors In Canada
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service levels, popularity trends, and more. The rankings reflect our opinion and should be a good starting point for shopping. By purchasing the products we rank, you’ll get the lowest price we found while we may receive a commission at no cost to you, which will help us continue to provide you with value.
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Overview: Are you looking for a reliable way to protect your family and home from the danger of carbon monoxide poisoning? Carbon monoxide detectors are a must-have for any home, and there are many options for you to choose from. Read on for reviews of the best carbon monoxide detectors available today.
Kidde 900-0263CO-CA Plug-in Carbon Monoxide Alarm (KN-COB-DP2CA), White, 1 Units
Model
First Alert CO605A Carbon Monoxide Plug-In Alarm with Battery Backup
Model
First Alert CO400A Battery Powered Carbon Monoxide Alarm
Model
DYWL SECURITY Carbon Monoxide Detectors Portable Carbon Monoxide Detector for Travel Carbon Monoxide Detector Plug in Wall with LED Digital Display Voice Light Plug and Play - 2Pack
Model
Carbon Monoxide Detector,CO Alarm Detector with Digital Display and Sound Alarm for Home 2pcs
Model
DYWL SECURITY Carbon Monoxide Detectors Portable Carbon Monoxide Detector for Travel Carbon Monoxide Detector Plug in Wall with LED Digital Display Voice Light Plug and Play - 1 Pack
Brand
Kidde
Brand
First Alert
Brand
First Alert
Brand
DYWL SECURITY
Brand
Ledronco
Brand
DYWL SECURITY
Reviews
6,360 reviews
Reviews
13,396 reviews
Reviews
7,260 reviews
Reviews
1,344 reviews
Reviews
2,728 reviews
Reviews
1,344 reviews
Features
Easy installation
9.9
Easy installation
9.9
Easy installation
9.8
Easy installation
9.9
Easy installation
9.4
Easy installation
9.9
Worth the money
9.6
Worth the money
9.4
Worth the money
9.4
Worth the money
8.6
Worth the money
9.1
Worth the money
8.6
Simple to use
9.9
Simple to use
9.8
Simple to use
9.8
Simple to use
9.1
Simple to use
9.6
Simple to use
9.1
Precision
9.8
Precision
9.8
Precision
9.6
Precision
9.1
Precision
7.9
Precision
9.1
Tech Specs
product dimensions
4.06 x 7.11 x 11.94 cm 199.58 g
product dimensions
6.68 x 17.15 x 21.59 cm 220 g
product dimensions
6.6 x 17.15 x 21.59 cm 210 g
product dimensions
11 x 7 x 6 cm 150 g
product dimensions
10 x 10 x 3.5 cm 222 g
product dimensions
11 x 7 x 6 cm 110 g
item weight
200 g
item weight
220 g
item weight
210 g
item weight
150 g
item weight
222 g
item weight
110 g
batteries included
Yes
batteries included
Yes
batteries included
Yes
batteries included
No
batteries included
No
batteries included
No
included components
2 AA batteries, installation guide, Kidde 900-0263CO-CA AC Plug-in Carbon Monoxide Alarm
included components
Carbon monoxide alarm 1 9v battery
included components
Carbon Monoxide Alarms, battery ies
included components
Detector
included components
Detector
included components
Detector
power source
Battery Powered
power source
Battery Powered
power source
Battery Powered
power source
AC/DC
power source
Battery Powered
power source
AC/DC
customer reviews
4.7 4.7 out of 5 stars 1, 590 ratings 4.7 out of 5 stars
customer reviews
4.6 4.6 out of 5 stars 3, 349 ratings 4.6 out of 5 stars
customer reviews
4.6 4.6 out of 5 stars 1, 815 ratings 4.6 out of 5 stars
customer reviews
4.4 4.4 out of 5 stars 336 ratings 4.4 out of 5 stars
customer reviews
4.3 4.3 out of 5 stars 682 ratings 4.3 out of 5 stars
customer reviews
4.4 4.4 out of 5 stars 336 ratings 4.4 out of 5 stars
Here are the top 3 recommended products with more information to help you find the right product for you
9.9
1
Kidde
Kidde 900-0263CO-CA Plug-in Carbon Monoxide Alarm (KN-COB-DP2CA), White, 1 Units
9.9Easy installation
9.9Simple to use
9.8Precision
Main highlights
Test / Reset Button – Tests the unit for proper operation. Resets the carbon monoxide alarm.
Tamper Resist Feature – If activated, unit goes into constant alarm mode if it has been unplugged or has come loose from the outlet.
Low Battery Hush – Silences low battery chirp warning for up to twelve hours in order to maintain protection without having to replace the batteries at an inconvenient time. 2 AA Battery Backup – Provides continuous protection in case of a power failure.
End of Life Notification – Ten (10) years after unit is first powered, this alarm will chirp two times every 30 seconds to indicate it is time to replace the alarm.
AC Plug-in Operated – Easy to install – just plug into a non-switched AC wall outlet.
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9.7
2
First Alert
First Alert CO605A Carbon Monoxide Plug-In Alarm with Battery Backup
9.9Easy installation
9.8Simple to use
9.8Precision
Main highlights
Plug & protect, alarm plugs into any standard 120v ac outlet with no additional mounting
Mute button silences unnecessary alarms. It also tests the alarm's function with same button
Ez access battery door, front-open compartment allows easy battery change without dismounting alarm
Electrochemical co sensorthe first alert carbon monoxide plug-in alarm
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9.6
3
First Alert
First Alert CO400A Battery Powered Carbon Monoxide Alarm
9.8Easy installation
9.8Simple to use
9.6Precision
Main highlights
SAME AS CO400A ASIN: B004Y75ZS2
Mute button, mutes unnecessary alarms. Also tests alarm function with same button
Low battery Signal mute, quiets low battery Signal for up to 8 hours
End of life timer, alarm chirps when it is time to replace it
Electrochemical sensor, most accurate technology available for detecting carbon monoxide* *compared to other common sensing technologies
Care: Vacuum the CO Alarm cover once a month, using the soft brush attachment. Never use water, cleaners, or solvents, since these may damage the unit. Test the CO Alarm again after vacuuming.
Battery operated, 9V battery included
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Our ranking system
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Features
Our team of experts analyzes key attributes, capabilities, significance, and many more depending on the type of product to determine its effectiveness.
Consumer Reviews
We ensure an evaluation of the ratings using references all over the internet for each product. With the help of our AI technology and professional review teams, we give weight to the worth of individual user experiences.
Popularity
Popularity is an important criterion in choosing a product. Several factors contribute to the popularity of the products on our site, including prestige, relevance, reputation, news, and more.
Value for money
BestChoices.com compares product attributes to price, examines tech specs, ratings and reviews, and more.
When compared to other criteria, does the pricing seem reasonable? In order to provide genuine value for money, our team must answer that question with advanced calculations.
Value for money
BestChoices.com compares product attributes to price, examines tech specs, ratings and reviews, and more.
When compared to other criteria, does the pricing seem reasonable? In order to provide genuine value for money, our team must answer that question with advanced calculations.
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9.9 
9.9
1Kidde
