The Best Carbon Monoxide Detectors To Help Protect Your Home

Best carbon monoxide detectors
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There are many steps we take to protect not only our homes but those living there. Both you and your family may be at risk from a range of dangers, and not just the obvious ones such as fires or intruders.

Another problem that claims many lives is carbon monoxide, also known as the silent killer.

People do not realise when they are at risk from carbon monoxide because there is nothing that they can hear, see, or even smell that gives any indication of danger.

That’s why we have always made sure to have a working carbon monoxide alarm in our properties. Here we run through what we consider to be the best carbon monoxide detectors currently available.

Top-Rated – The Best Carbon Monoxide Detectors In The UK:

Image
Fireangel CO-9D Digital Sealed for Life Carbon Monoxide Alarm, White
Kidde 5CO Battery Powered Carbon Monoxide Alarm 10 Year Life
Scondaor Carbon Monoxide Alarm Detector EN 50291 Certified, CO Alarm Detector with Digital Display, Battery Powered, 10 Year Sensor
Fireangel CO-9B Carbon Monoxide Alarm, Kitemark Approved, 7 Year Life, White, 1 pack
Scondaor Carbon Monoxide Alarm Detector with 10-Year Sensor, Digital LCD Display CO Alarm Detector with Alarm Record, Battery Operated (3 AA Batteries Included), Conforms to EN 50291-1:2018
Performance
Outstanding
Excellent
Excellent
Good
Good
Value For Money
Excellent
Outstanding
Excellent
Excellent
Good
Rating
Reviews
14,945 Reviews
27,733 Reviews
3,158 Reviews
8,684 Reviews
707 Reviews
Our Pick
Image
Fireangel CO-9D Digital Sealed for Life Carbon Monoxide Alarm, White
Performance
Outstanding
Value For Money
Excellent
Rating
Reviews
14,945 Reviews
Best Alternative
Image
Kidde 5CO Battery Powered Carbon Monoxide Alarm 10 Year Life
Performance
Excellent
Value For Money
Outstanding
Rating
Reviews
27,733 Reviews
Image
Scondaor Carbon Monoxide Alarm Detector EN 50291 Certified, CO Alarm Detector with Digital Display, Battery Powered, 10 Year Sensor
Performance
Excellent
Value For Money
Excellent
Rating
Reviews
3,158 Reviews
Image
Fireangel CO-9B Carbon Monoxide Alarm, Kitemark Approved, 7 Year Life, White, 1 pack
Performance
Good
Value For Money
Excellent
Rating
Reviews
8,684 Reviews
Image
Scondaor Carbon Monoxide Alarm Detector with 10-Year Sensor, Digital LCD Display CO Alarm Detector with Alarm Record, Battery Operated (3 AA Batteries Included), Conforms to EN 50291-1:2018
Performance
Good
Value For Money
Good
Rating
Reviews
707 Reviews

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Let’s go through the alarms in our table one by one..:

#1: FireAngel CO-9D Carbon Monoxide Alarm 

FireAngel CO-9D Carbon Monoxide Alarm

Check current stock levels, price, and reviews on Amazon

Features: 

  • Thousands of excellent reviews with close to a 5-star rating
  • Very affordable pricing
  • Auto self-diagnostic checks
  • Loud alarm
  • Sizeable button to test and silence alarm
  • Clear digital screen
  • Multi-functional with room temperature reading
  • A range of features and benefits
  • Sealed unit
  • 7-year lifespan
  • Portable design to take on trips
  • Certified in adherence to safety guidelines

What to Consider:

  • Aim to install in all rooms with a fuel-burning appliance
  • This is a sealed unit that does not require the purchase of batteries
Fireangel CO-9D Digital Sealed for Life Carbon Monoxide Alarm, White
14,945 Reviews
Fireangel CO-9D Digital Sealed for Life Carbon Monoxide Alarm, White
If you are looking for a high-quality sealed carbon monoxide detector at an affordable price, this could be the ideal choice for you. Small, compact, and lightweight, the detector is easy to install and comes with a 7-year lifespan before it requires replacing. The unit offers a range of features and benefits all designed with your safety in mind, and it adheres to vital safety standards. There are thousands of excellent reviews from past customers, which means that you can buy with total confidence.

#2: Kidde 5CO LED Carbon Monoxide Detector

Kidde 5CO LED Carbon Monoxide Detector

Check current stock levels, price, and reviews on Amazon

Features:

  • Great for those on a budget
  • Several thousand excellent reviews 
  • Impressive 10-year lifespan
  • Continuous monitoring with an updated design
  • Loud alarm to alert householders and flashing lights
  • Free-standing or wall-mounted design
  • Portable to take on trips
  • Operated by 3 AAA batteries that can be replaced
  • Comes with a 7-year warranty
  • Buy with confidence with Kitemark and CE Mark
  • Small and lightweight

What to Consider:

  • This is an AAA battery-operated unit and batteries will need to be replaced every 2-3 years
  • Place an alarm in all rooms with fuel-burning appliances
Kidde 5CO Battery Powered Carbon Monoxide Alarm 10 Year Life
27,733 Reviews
Kidde 5CO Battery Powered Carbon Monoxide Alarm 10 Year Life
For those who are on a budget but want effective protection in their homes, this detector is a good choice. It comes with very affordable pricing, but also has excellent reviews from several thousand people who have purchased it. This is a battery-operated carbon monoxide detector, so you will need to replace the batteries every couple of years or so. However, it comes with a 10-year lifespan and a 7-year warranty for your protection and peace of mind.

#3: Scondaor Carbon Monoxide Alarm Detector

Scondaor Carbon Monoxide Alarm Detector

Check current stock levels, price, and reviews on Amazon

Features:

  • Many great reviews from past buyers
  • Reasonable price
  • Certified for safety
  • High accuracy levels
  • Large LCD screen with three LED indicators
  • Large test and menu buttons
  • Effective audible alarm and flashing light to alert users
  • Operated via 3 AA batteries
  • Low battery warning
  • 10-year lifespan

What to Consider:

  • Batteries not included with the unit
  • Need to change batteries when indicator recommends
  • Aim to have a detector in each room with a fuel-burning appliance
Sale
Scondaor Carbon Monoxide Alarm Detector EN 50291 Certified, CO Alarm Detector with Digital Display, Battery Powered, 10 Year Sensor
3,158 Reviews
Scondaor Carbon Monoxide Alarm Detector EN 50291 Certified, CO Alarm Detector with Digital Display, Battery Powered, 10 Year Sensor
Another option for those who want a battery-operated unit, this detector comes with a maximum 10-year lifespan and is a lightweight unit with plenty of key features. It is certified for adherence to safety, and it offers a high level of accuracy. There is a low battery warning as well as a fault warning, and the alarm has an electrochemical sensor. The pricing on this unit is also reasonable, making it a good choice for those who want an affordable but proven carbon monoxide detector.

#4: FireAngel CO-9B Carbon Monoxide Detector

FireAngel CO-9B Carbon Monoxide Detector

Check current stock levels, price, and reviews on Amazon

Features:

  • A budget detector at a low price
  • Thousands of excellent ratings from consumers
  • Auto self-diagnostic check
  • Comes with replaceable 1-year battery
  • Large button to test and silence alarm
  • Clear LED lights for alarm and power
  • Clear audible alarm
  • Compact and lightweight design
  • Runs on AA batteries
  • Easy to install
  • Accurate measurement of low CO levels
  • Portable design to move around
  • Offers 7-year lifespan
  • Comes with a manufacturer’s warranty

What to Consider:

  • This unit runs on AA batteries that will need to be replaced
  • Aim for a detector in every room with a fuel-burning appliance
Fireangel CO-9B Carbon Monoxide Alarm, Kitemark Approved, 7 Year Life, White, 1 pack
8,684 Reviews
Fireangel CO-9B Carbon Monoxide Alarm, Kitemark Approved, 7 Year Life, White, 1 pack
With its compact design and simple function, this is a popular choice among those buying carbon monoxide detectors. The low price coupled with excellent reviews has made it an ideal option for many. The unit is a basic one that offers all the features you need for safety and peace of mind. You can benefit from the audible alarm and choose to have it freestanding or wall-mounted. The portable design means that you can take the alarm with you when you are away.

Our Experience With A FireAngel Carbon Monoxide Detector

Carbon Monoxide Regulations
Our 8+ year old FireAngel carbon monoxide alarm is still going strong!

We’ve used a FireAngel carbon monoxide alarm for several years now and have always been happy with it’s performance.

Though our model (the CO-9B) has now been superseded by new, more advanced models, we’ve been very happy with its performance.

It emits a flashing light every now and again for a visual indication that it’s still in working order and trying to detect Carbon Monoxide. However, it’s bright enough to notice without being so bright it disturbs your sleep if you, like us, place it in a bedroom.

While we have been fortunate enough to never have had a carbon monoxide leak, the large test button leads to a loud high-pitched alarm that would certainly wake us up from even the deepest sleep!

We’ve had the alarm for around 8 years and it’s still going strong so it has clearly been built to last. For that reason, we strongly recommend FireAngel alarms as some of the best out there.

#5: Scondaor Carbon Monoxide Detector

Scondaor Carbon Monoxide Detector

Check current stock levels, price, and reviews on Amazon

Features:

  • Very good reviews from many consumers
  • Large digital LCD display
  • LED lights to indicate alarm, fault, and standby
  • Offers 10-year lifespan
  • Meets vital safety standards
  • Loud beeping and visual light to sound alarm
  • Auto self-diagnostic capabilities
  • Easy to install
  • Operates via AA batteries (included with alarm)
  • Low battery warning and end of life warning
  • Compact round design

What to Consider:

  • Batteries are included with the unit
  • Runs on AA batteries
  • Aim to have a detector in each room with a fuel-burning appliance
Sale
Scondaor Carbon Monoxide Alarm Detector with 10-Year Sensor, Digital LCD Display CO Alarm Detector with Alarm Record, Battery Operated (3 AA Batteries Included), Conforms to EN 50291-1:2018
707 Reviews
Scondaor Carbon Monoxide Alarm Detector with 10-Year Sensor, Digital LCD Display CO Alarm Detector with Alarm Record, Battery Operated (3 AA Batteries Included), Conforms to EN 50291-1:2018
Running on AA batteries and offering a 10-year lifespan, this detector has an attractive round design and is compact. It offers a range of features including a loud and audible alarm to alert those in the household. It also warns you when the batteries need to be replaced as well as when the unit itself needs to be replaced.

Choosing the Best Carbon Monoxide Detector for Your Home

Of course, you need to ensure you consider the right factors when it comes to choosing the best carbon monoxide detector for your home.

Some of the key things you need to think about are:

The Price of the Detector

One of the factors you need to consider is the price of the detector, and this can vary based on the make and model you get. It can also depend on the retailer you purchase from.

Obviously, with something as important as these detectors, you need to ensure you invest in quality, so you need to look at far more than just the price.

Make sure you purchase a detector that meets safety regulations and offers reliability and quality. 

We found we are always drawn to the middle of the range detectors. They always seemed to us like they offered the best mix of quality and affordability.

Sealed or Replaceable Battery

When you purchase a carbon dioxide detector, you can get sealed or replaceable battery options. Some people think that the best carbon dioxide detectors are replaceable battery ones simply because they are a bit cheaper.

However, you need to remember that the batteries will need to be changed every couple of years or so, and this means the price ends up being pretty much even.

The sealed battery ones do not need to have replacement batteries, and once the battery runs out the unit needs to be replaced. 

We have used both in our various homes and have to say we do prefer the sealed units now. That’s simply because batteries have become quite expensive and we enjoy the peace of mind that comes with a sealed unit and knowing you don’t have to worry about battery level (the unit lets you know when it’s about to expire).

We did have an issue once where a sealed detector lost it’s battery power after only a few months (instead of the promised 7+ years). However, when we reported this to the manufacturer, they happily sent us a replacement unit.

Lifespan of the Detector

Another thing to look at is the lifespan of the detector, and this is something you should be able to find out from the manufacturer.

Many detectors have a lifespan of between five to ten years depending on the model and make you buy.

Make sure you are familiar with the signs that indicate your unit needs to be changed so that you can replace it as soon as required rather than having a unit that is not functioning. 

Clearly the longer the lifespan the better, though we have noticed that sometimes it’s more cost-effective to buy two shorter life detectors rather than one long-life one.

Just keep in mind that prices are likely to rise over time and so what is more cost-effective now may not be in a few years. Also, check whether the shelf-life starts from when you use the detector for the first time or if it has a preset expiry date.

Reviews from Others 

It is always a good idea to see what other people think of the make and model you are considering buying before you make your purchase.

You can do this by looking at online reviews from other people who have purchased the same detector, and this will enable you to pick up a lot of valuable information regarding things such as quality, reliability, efficiency, and features.

This then makes it easier for you to determine the best carbon monoxide detectors for your needs. 

Smart Capabilities and Features

Finally, make sure you look at the features and specifications of the detector. This includes whether it has smart capabilities that will notify you of issues via your smart device as well as via the alarm.

This is ideal for those who may have family at home but have to spend a lot of time away for work or other reasons. 

We haven’t invested in a smart detector ourselves yet but we can certainly see the benefits.

What Is Carbon Monoxide?

What is carbon monoxide?

Carbon monoxide is often referred to as the silent killer. It is a gas that can cause poisoning and prove fatal, and it is generated from various appliances. This includes gas heaters and stoves as well as other appliances that use fossil fuels.

There is no taste or smell, and this gas has no colour to it, and this makes it extremely hard to detect. If this gas is inhaled, it can cause poisoning and death for people and animals.

What Are the Common Symptoms of Carbon Monoxide Poisoning?

When people experience carbon monoxide poisoning, it is because they have breathed in the gas without noticing.

The symptoms can vary depending on your age, but there are some that are commonplace among those who have breathed in carbon monoxide. This includes confusion, vomiting or nausea, dizziness, headaches, feeling weak, and chest pains.

Immediate medical attention should be sought if you believe you or someone else may be experiencing the symptoms of carbon monoxide poisoning. 

Where Should a Carbon Monoxide Detector Be Placed?

It is advisable to place your carbon monoxide detector around five feet from the ground. This is because this gas is a little lighter than air, and it is often detected through warm air that rises.

You can also place the device on the ceiling if you prefer. However, you should never place it next to or above the fire or other appliance that poses a risk of carbon monoxide release. 

How Many Carbon Monoxide Detectors Should You Have in Your House?

The rule of thumb is to have at least one detector on every floor of your home, just as you might with a smoke alarm. This is to ensure that all floors of your property are covered and that any release of the gas can be detected by the alarm no matter what floor it affects.

You should also ensure you have detectors in areas such as your basement or garage in cases where it is directly linked to your home.

Often, people are affected by this gas when they are asleep, and this is when it is most deadly. So, install a detector in all sleeping areas or just outside the room. Many now recommend having a detector in every room that has a fuel-burning appliance. 

We’ve always made sure we have a working carbon monoxide alarm in both our kitchen and our bedroom as a minimum. This is regardless of whether we have a fuel-burning appliance in the room or not.

Bottom Line

The wide range of options makes it much easier these days to find the best carbon monoxide detectors for your needs.

You can also benefit from affordable pricing on many, and this means you do not have to spend a fortune in order to gain protection and peace of mind.

Of course, you should put plenty of thought into your choice and take into consideration the tips above to help you to make your choice.

Also, remember that although the price is an important factor, it is more important to ensure you purchase quality detectors that are constructed to high standards and meet safety regulations.

This is a device that could save your life and the lives of your loved ones, so you should never cut corners when it comes to making this type of purchase. 

The Best Carbon Monoxide Detectors For UK Homes:

Image
Fireangel CO-9D Digital Sealed for Life Carbon Monoxide Alarm, White
Kidde 5CO Battery Powered Carbon Monoxide Alarm 10 Year Life
Scondaor Carbon Monoxide Alarm Detector EN 50291 Certified, CO Alarm Detector with Digital Display, Battery Powered, 10 Year Sensor
Fireangel CO-9B Carbon Monoxide Alarm, Kitemark Approved, 7 Year Life, White, 1 pack
Scondaor Carbon Monoxide Alarm Detector with 10-Year Sensor, Digital LCD Display CO Alarm Detector with Alarm Record, Battery Operated (3 AA Batteries Included), Conforms to EN 50291-1:2018
Performance
Outstanding
Excellent
Excellent
Good
Good
Value For Money
Excellent
Outstanding
Excellent
Excellent
Good
Rating
Reviews
14,945 Reviews
27,733 Reviews
3,158 Reviews
8,684 Reviews
707 Reviews
Our Pick
Image
Fireangel CO-9D Digital Sealed for Life Carbon Monoxide Alarm, White
Performance
Outstanding
Value For Money
Excellent
Rating
Reviews
14,945 Reviews
Best Alternative
Image
Kidde 5CO Battery Powered Carbon Monoxide Alarm 10 Year Life
Performance
Excellent
Value For Money
Outstanding
Rating
Reviews
27,733 Reviews
Image
Scondaor Carbon Monoxide Alarm Detector EN 50291 Certified, CO Alarm Detector with Digital Display, Battery Powered, 10 Year Sensor
Performance
Excellent
Value For Money
Excellent
Rating
Reviews
3,158 Reviews
Image
Fireangel CO-9B Carbon Monoxide Alarm, Kitemark Approved, 7 Year Life, White, 1 pack
Performance
Good
Value For Money
Excellent
Rating
Reviews
8,684 Reviews
Image
Scondaor Carbon Monoxide Alarm Detector with 10-Year Sensor, Digital LCD Display CO Alarm Detector with Alarm Record, Battery Operated (3 AA Batteries Included), Conforms to EN 50291-1:2018
Performance
Good
Value For Money
Good
Rating
Reviews
707 Reviews

Author

  • Paul James

    Paul James, is a marketing expert with a passion for property. As well as being a property investor, Paul has also worked within the marketing departments of some of the UK’s leading estate agents. Paul is the founder of Property Road.

    View all posts
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