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How To Buy The Best carbon monoxide alarm

Looking to buy the best carbon monoxide alarm? Check out our guide below and you’ll be well-placed to select the correct one for your needs.

Everyone understands the importance of having a smoke alarm in their home.
If a fire starts while you’re sleeping, the smoke will trigger an alarm, allowing you enough time to escape before being asphyxiated by the fire’s lethal mixture of chemical chemicals.

But there’s another gas that you can’t see, smell, or taste, and it’s potentially far more lethal.
Carbon monoxide is formed when fuels are burned incompletely, which is commonly due to a malfunctioning item such as a gas boiler, gas-powered fireplace, gas cooktop, wood burner, or a blocked coal fire flue.

Thankfully, a carbon monoxide detector, which costs only a few pounds more than a smoke alarm, can provide early warning.

How do you pick the best carbon monoxide detector for you?

What is carbon monoxide poisoning, and how does it happen?

Because you can’t smell, taste, or sight carbon monoxide, it’s known as the silent killer.
It invades red blood cells (haemoglobin) once it enters your bloodstream, preventing them from transporting oxygen across the body.
Carbon monoxide poisoning can cause a flu-like headache, dizziness, and nausea, as well as fatigue, confusion, dyspnea, weakness, lack of muscular coordination, and, dare I say it, death.
CO is odourless to the point where even dogs are unable to detect it.

What are carbon monoxide alarms and how do they work?

Carbon monoxide’s health impacts are determined on the amount of Carbon monoxide inhaled and the length of time spent inhaling it (carbon monoxide concentration is measured in parts per million).
“A carbon monoxide detector is a time-weighted alarm that measures the development of carbon monoxide in a house,” according to Kidde, a well-known Carbon monoxide alarm maker.

“A person would need to be exposed to a carbon monoxide level of 50 parts per million (ppm) for eight hours to start feeling the consequences of carbon monoxide poisoning.
The reaction time of an alarm is affected by the amount of carbon monoxide in the air.
For example, after three and a half hours of continuous exposure at a level of 50ppm, an alarm will sound, whereas after eight minutes of continuous exposure at a level of 400ppm, an alarm will sound.”

Carbon monoxide sensors have a five- to seven-year lifespan, while some manufacturers currently claim that their sensors may survive up to ten years.
In general, it’s better to be safe and replace your alarm a year or two before it’s intended to stop working.
Alarms that are more than eight years old have been shown to fail to detect Carbon monoxide at levels exceeding 400ppm in tests conducted in the United States.

It’s also worth mentioning that the test button on these devices doesn’t truly test the sensor; instead, it double-checks that the circuit is operational.

What CO levels are deemed hazardous?

Most people will not suffer any symptoms if they are exposed to Carbon monoxide levels below 40ppm for an extended period of time.
The real risk level begins at roughly 400ppm, depending on the period of exposure (two to three hours of exposure at this level can be life-threatening).
To give you an idea of how hazardous higher concentrations can be, 1,500ppm can kill you in an hour and 6,000ppm can kill you in 15 minutes.

All of these concentrations are terrible enough when you’re awake and realise something isn’t quite right – especially if others are experiencing the same thing – but if you’re sleeping, you can wake up with a strong headache and nausea, unable to crawl for fresh air.

Worse yet, you may not even wake up.

What makes you think I should be concerned?

According to the NHS, 25 people die in the UK each year as a result of Carbon monoxide poisoning.
It’s a good idea to have the flue of your boiler, gas fire, or wood/coal fire examined at regular intervals for extra piece of mind.
Inside a tent, never use a gas-powered lamp or oven.

Where should I put my Carbon Monoxide detector?

Most manufacturers recommend placing your alarm next to or near a gas appliance, and it’s also a good idea to keep one near any fire or wood-burning stove.
Most can be installed on a workbench, shelf, or table – or simply mounted on the wall – and should be roughly 1.5m from the ground and at least 30cm away from any ceiling.

Do not believe that Carbon Monoxide alarms are only for your home.
They’re required for caravans and motorhomes, and you might wish to bring one with you on vacation if you’re staying in a cottage or other self-catering property.

Are there any features that you should keep an eye out for?

Carbon monoxide alarms are, in general, quite simple devices.
Only the newer, higher-priced smart or app-connected alarms have any useful functions.
British Standard certification is the most crucial item to search for.
Carbon monoxide alarms shall be EN50291-1:2018 kitemarked for use in domestic premises, and BS EN 50291-2:2010 kitemarked for use in the home, boat, or caravan.
The second standard primarily assures that the alarm is durable enough to be used when travelling.

Aside from that, the most important aspects are whether or not there is a display and how the alarm is powered.
A rising number of Carbon monoxide alarms now have a display that shows the sensor’s current reading on CO particles in the air, albeit you’ll only see it after a test or if the reading exceeds acceptable levels to preserve batteries.

Most Carbon monoxide alarms used to be powered by a set of replaceable AA or AAA batteries, which needed to be replaced every three to five years.
Many now use a sealed-in Lithium battery that is meant to last the same amount of time as the sensor; you simply buy the unit and replace it when the lifespan expires.
If there is a carbon-fueled appliance on the property, such as a boiler, woodburner, or open fire, a new Scottish law will force homeowners and landlords to install either tamper-proof detectors with a long-life Lithium battery or a mains-wired CO alarm starting in 2022.

The best carbon monoxide alarm to buy

Bestseller No. 1
Fireangel CO-9B Carbon Monoxide Alarm, Kitemark Approved, 7 Year Life, White
  • Advanced electrochemical sensor detects dangerous levels of Carbon Monoxide ( CO ) in your home
  • As well as being calibrated and rigorously tested in-house the alarm has been third party approved through the British Standards Institute (BSI) and is Kitemark certified
  • The unit has been designed to either be wall mounted or left portable so you can take it on holiday for protection on the go. It's also suitable for caravans, motor caravans and boats following advice from BS EN 50292-2013
  • The device is supplied with 2 x AA batteries, which can be replaced as required when the alarm provides the low battery warning sound
  • The CO-9B detector has been designed to conform to the EU standards - EN 50291-1: 2010 + A1:2012 and EN 50291-2: 2010.
Bestseller No. 2
Kidde 5CO 10 Year Battery Powered Carbon Monoxide Alarm
  • Replaces older Life Saver model
  • Continuous monitoring for CO with a loud alarm on detection
  • Can be wall mounted or free standing - ideal for taking on holiday or when travelling
  • Battery operated (2 replaceable AA batteries supplied)
  • 7 year warranty, 10 year alarm life, Kitemarked and CE Marked
SaleBestseller No. 3
Kidde Carbon Monoxide Alarm
  • Continuous monitoring
  • End-of-life alarm
  • Test/reset button
  • Battery operation
  • Multi-function green and red LED's
SaleBestseller No. 4
Fireangel CO-9D Digital Sealed for Life Carbon Monoxide Alarm, White
  • Automatic self diagnostic check
  • Loud 85 dB alarm at 1 m
  • Large multi-function digital screen and room thermometer
  • Temperature facility designed to provide a room temperature indication only (nominally +/– 2 Degree Celsius)
SaleBestseller No. 5
Kidde 5DCO 10 Year Life Digital Display Carbon Monoxide Alarm (1)
  • Compact, slimline case. Dimensions = 127mm x 73mm x 39mm. Weight = 170g.
  • 10 year sensor lifespan. Powered by two replaceable AA batteries (supplied). Please note that due to the replaceable batteries used in this alarm it is NOT a type that is permitted for use in Scottish homes from February 2022.
  • Warning "chirp" and digital display message indicates when batteries are low.
  • Digital display of CO levels from 30ppm. Detector alarms from 50ppm.
  • Kitemarked to BS EN 50291-1 (domestic use). CE and UKCA marked.
SaleBestseller No. 6
Carbon Monoxide Detector CO Alarm Detector with Digital Display and Sound Alarm For Home,Replaceable Battery Operated CO Alarm Detector (AA Batteries NOT Included)
  • Durable material: This product is made of high-quality material, durable, long service time, firm and stable in use.
  • carbon monoxide detector alarm:suitable for all fields: houses, shops, hotels, restaurants, office buildings, schools, banks, libraries, computer rooms and warehouses, etc.
  • Alarm Standard&Liquid crystal display:the alert time depend the level of carbon monoxide concentration,And the display screen of the carbon monoxide alarm can accurately measure the concentration of carbon monoxide and its concentration data . When the concentration reaches a certain level, carbon monoxide smoke The detector will notify you immediately when it detects it, minimizing false alarms
  • Combination alarm:Battery-powered combination alarm that offers protection from the dual dangers of smoke and carbon monoxide in a single unit for added convenience - The voice alarm feature audibly announces which Danger has been detected to protect your family's life and property safety from CO detector.(Not included battery)
  • Quick & Easy Installation:It can be installed independently, without wires, just three batteries. It can be placed or fixed where you want. Carbon monoxide is lighter than air, so it is recommended to install it the ceiling
Bestseller No. 7
Fireangel CO-9X Carbon Monoxide Alarm
  • Automatic self diagnostic check, 7 years sealed for life lithium battery, loud 85 dB alarm at 1 metre, large test and silence button, visual LEDs for power, alarm and fault
  • 7 years sealed for life lithium battery
  • Loud 85 dB alarm at 1 m
  • Large test and silence button
  • Visual LEDs for power, alarm and fault
Bestseller No. 8
X-Sense Wireless Interlinked Combination Smoke and Carbon Monoxide Alarm, 10-Year Battery Powered Interconnected Fire and CO Detector, SC06-W, Link+, 3-Pack
  • 2-in-Protection: This wireless interlinked combination alarm protects against both smoke and carbon monoxide
  • Wireless Interconnection: When one alarm sounds, all alarms will go off
  • Sealed Battery: This wireless interconnected alarm features a 10-year lithium battery and will give a low battery warning
  • Test/Silence Button: The single push of a button will either test or silence all units in the system
  • Full Home Coverage: Link up to 24 Link+ wireless interlinked smoke alarms, CO alarms, and combination alarms for maximum home protection
Bestseller No. 9
FireAngel TCO-9XQ Carbon Monoxide Alarm (Sealed for Life Battery), Packaging may vary
  • Electrochemical sensor designed to accurately measure low levels of CO, 7 years lifespan
  • Battery powered CO alarm - 7 years sealed for life battery (included)
  • Easy to Install, portable
  • Positioning in any room that contains a fuel burning appliance: example- gas, oil boiler, log fire, stoves, gas cooker and BBQ
  • 7 years warranty
Bestseller No. 10
Kidde 10SCO Combination 10 Year Life Carbon Monoxide and Smoke Alarm (1)
  • Two alarms in one unit for space saving and convenience.
  • Different voice warnings for smoke and CO with loud 85dB alarm noise.
  • Kitemarked and CE marked. 10 year sensor life and manufacturer’s warranty.
  • 9v alkaline battery included, must be replaced every 1 -2 years.
  • Supplied with fixings: 2 x screws and 2 x rawl plugs.

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