Best carbon monoxide detector 2019

Which is the best carbon monoxide detector?

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Review of the 10 best carbon monoxide detectors

The top 10 list of the best carbon monoxide detectors compares various manufacturers and prices

Review10Best compares the best carbon monoxide detectors and nominates the one from First Alert as the best carbon monoxide detector. In our carbon monoxide detectors review, you can read more about our experiences we made with the different carbon monoxide detectors and follow our recommendation on which carbon monoxide detector to buy in 2019. With the carbon monoxide detector comparison, you can be sure to buy the best carbon monoxide detector on the market and save a lot of money if you buy it online.


Table of contents

  1. Read the ultimate carbon monoxide detector buying guide
  2. View our carbon monoxide detector picks and see how they rank in the top list
  3. Watch recommended videos about carbon monoxide detectors

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carbon monoxide detectors: A complete buying guide

All you need to know before buying a great carbon monoxide detector

Picture of a carbon monoxide detector

A good carbon monoxide (CO) detector detects the dangers of carbon monoxide in enclosed spaces, making it an incredibly important device for homes using fuel-burning appliances. However, it’s not always clear what the best CO detector is for your home, and because this is a very important safety device you should always take the time to research what you need.

Check out the buying guide below for how to choose the best carbon monoxide detectors for your home:

What are carbon monoxide detectors?

As the name suggests, a carbon monoxide detector is a device used to detect the presence of carbon monoxide gas in the air. By detecting carbon monoxide, the system provides a warning to people that they are at risk of carbon monoxide poisoning, which is virtually undetectable to humans. Remember that a CO detector doesn't replace a good smoke detector.

Why should you buy a good carbon monoxide detector?

If you use a fuel-burning appliance such as gas heating in your home, then it’s essential that you have a carbon monoxide detector. Carbon monoxide is known as the silent killer, as the gas is highly poisonous to humans but impossible to detect through smell or taste, making it highly dangerous. So, if you don’t have a good carbon monoxide detector but there is a chance that carbon monoxide gas leaks from an appliance in your home, you could very well die without ever knowing anything was wrong.

Another picture of a carbon monoxide detector
How to choose the right carbon monoxide detector?

It is incredibly important to choose the best carbon monoxide detector possible for home to eliminate any risks of accidental carbon monoxide poisoning. Be sure to consider the following things to help you choose a good CO detector:

  • Alarm Volume: The best carbon monoxide detectors offer a loud audible alarm at the first detection of carbon monoxide. This is important as carbon monoxide poisoning causes drowsiness and eventually causes you to fall asleep, at which point you are even more at risk of dying, so getting a warning signal as soon as possible is a must. Make sure the alarm is loud and audible from several feet away, especially if buying for an elderly person.
  • Display: Newer carbon monoxide detectors feature digital displays that offer real-time readings and a constant stream of data. Not only that, these displays offer info regarding battery life, peak levels measured, and other helpful data. One setback from digital displays is that they often appear bright when sleeping, so may not be ideal for light sleepers or those easily distracted.
  • Power Source: Battery-operated carbon monoxide detectors are very reliable, but the batteries need to be changed every so often and it's important not to forget this otherwise it becomes useless. Hardwired CO detectors are connected to the mains power so will never stop working unless there is a power outage, although most feature backup batteries should this occur.
What is the best kind of carbon monoxide detector?

There are several types of good carbon monoxide detectors available, all of which offer their own unique advantages.

  • Digital Display CO Detectors: A great carbon monoxide detector for most homes, it features a digital display that provides real-time data about current and previous CO levels in parts per million. While more expensive, they provide accurate data that offer a peace of mind and plenty of warning.
  • Hardwired CO Detectors: The best carbon monoxide detectors for homes with several rooms, these are hardwired to the power supply and feature backup batteries should there ever be a power outage. This means professional installation is almost always required, but there is no risk of the detector running out of battery.
  • Battery-Operated CO Detectors: A great all-round carbon monoxide detector, battery-operated devices last for several years before the battery needs to be changed. However, if you forget to change the battery then the device doesn’t offer any warning, so it’s always important to remember to change the battery, although this is easy enough as they come with low battery warnings.
  • Patch CO Detectors: A cheap detector that doesn’t offer an audio alarm but rather a visual one, patch carbon monoxide detectors change color if there is any CO detected. While very affordable, the lack of an audio alarm makes it far less effective than other types.
…are you ready for our top picks?

Top 10 list of carbon monoxide detectors (September 2019)

Our top 10 list shows how manufacturers and their carbon monoxide detectors rank and which carbon monoxide detector is the best.
Top choicei TOP 1
Image of First Alert FATCO605 carbon monoxide detector
First Alert CO605 Plug-In Battery Backup CO Alarm, 1 pack, Whitei
  • All First Alert CO alarms are rigorously tested to meet UL standards. Item Length…
  • 7 year limited warranty; equipped with end of life signal chirp, so you know when…
  • To ensure complete protection make sure to place one on each level of your home and…
starting from $19.59i
(1507 reviews)i
Buy now on Amazoni
Value deali TOP 2
Image of Nest Labs S3000BWES carbon monoxide detector
Nest S3000BWES Nest Protect 2nd Gen Smoke + Carbon Monoxide Alarm, Battery (Battery)i
  • 10-year carbon monoxide sensor. Carbon monoxide is odorless, invisible and deadly.…
  • Heads-Up. Get a friendly voice alert so you can handle burning toast before it becomes…
  • Split-Spectrum Sensor. In an emergency, seconds count. Nest Protect uses two wavelengths…
starting from $116.98i
(4963 reviews)i
Buy now on Amazoni
TOP 3
Image of Amazon 53-020195 carbon monoxide detector
Ring Alarm Smoke and CO Listeneri
  • Optional 24/7 professional monitoring is just $10/month. No contracts or cancellation…
  • Battery life 3 years max. Batteries are replaceable.
  • Manage Ring Alarm Smoke and CO Listener and other Ring products with the Ring ap…
starting from $34.99i
(0 reviews)
Buy now on Amazoni
TOP 4
Image of Kidde 21007267 carbon monoxide detector
Kidde 21007267 Nighthawk Carbon Monoxide Alarm, Battery Operated with Digital Display | Model KN-Copp-B-LSi
  • Battery lockout system deters covering battery compartment without installation of…
  • Battery operated (3 AAs included) to provide protection during power outages
  • Peak level memory displays the highest CO concentration measured since the last…
starting from $22.29i
(0 reviews)
Buy now on Amazoni
TOP 5
Image of Kidde 900-0076 carbon monoxide detector
Kidde 900-0076-01 KN-COPP-3 Nighthawk Plug in Carbon Monoxide Detector Alarmi
  • Power Source: 120VAC
  • NOTE: This CO alarm is not battery operated. However, these alarms are equipped with…
  • Ten years after the initial power up, this alarm will "beep" two times…
starting from $26.99i
(2954 reviews)i
Buy now on Amazoni
TOP 6
Image of First Alert SCO5CN carbon monoxide detector
First Alert Smoke Detector and Carbon Monoxide Detector Alarm | Battery Operated, SCO5CNi
  • It can ship within the US except New York
  • 7 year limited warranty; equipped with end of life signal chirp, so you know when…
  • Simple to use, with a single test/silence button; EZ access battery drawer allows…
starting from $21.99i
(2059 reviews)i
Buy now on Amazoni
TOP 7
Image of Kidde 9CO5-LP2 carbon monoxide detector
Kidde Carbon Monoxide Detector Alarm |Battery Operated | Model # KN-COB-B-LP2i
  • Low battery signal
  • Loud 85 decibel alarm
  • Event memory
starting from $14.84i
(727 reviews)i
Buy now on Amazoni
TOP 8
Image of Kidde 21008873 carbon monoxide detector
Kidde Battery Operated Carbon Monoxide Alarm with Digital Display KN-Copp-B-LPMi
  • Provides peace of mind against the silent killer and a digital display
  • LED's - Green LED for normal operation, Red LED for alarm. Temperature range 40F…
  • Test/Reset Button - Tests unit's electronic circuitry & horn and resets the…
starting from $21.59i
(2719 reviews)i
Buy now on Amazoni
TOP 9
Image of First Alert CO615 carbon monoxide detector
First Alert Dual-Power Carbon Monoxide Detector Alarm | Plug-In with Battery Backup and Digital Display, CO615i
  • All First Alert CO alarms are rigorously tested to meet UL standards
  • 7 year limited warranty; equipped with end of life signal chirp, so you know when…
  • To ensure complete protection make sure to place one on each level of your home and…
starting from $23.99i
(1818 reviews)i
Buy now on Amazoni
TOP 10
Image of First Alert CO400 carbon monoxide detector
First Alert Carbon Monoxide Detector| No Outlet Required, Battery Operated, CO400i
  • All First Alert CO alarms are rigorously tested to meet UL standards
  • 5 year limited warranty; equipped with end of life signal chirp, so you know when…
  • To ensure complete protection make sure to place one on each level of your home and…
starting from $13.99i
(1825 reviews)i
Buy now on Amazoni

i,ii Price incl. VAT., exkl. shipping. Price may vary. Last Update. 2019/09/15 10:29 o'clock. Affiliate link. We participate in the Amazon Associates Program (case i) and Kelkoo Associates Program (case ii), a affiliate advertising programs that enables us to earn commissions by linking to Amazon and other merchants. There are no additional costs for you. For the top 10 list we consider only products that are available on Amazon while the ranking is based on factors such as customer reviews, number of sales and keyword.


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