Top 10 Smoke and Carbon Monoxide Alarm

Last update: 12-07-2026

1

Fireangel

FireAngel Carbon Monoxide Alarm and Detector - FA6813 10-Year Sensor Life CO Alarm for Home with AA Batteries - Travel, Portable Carbon Monoxide Detector - CO Detector Monitor with Test Button

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• CARBON MONOXIDE ALARMS FOR HOME USE: The advanced electrochemical sensor detects dangerous levels of carbon monoxide (CO) in your home, alerting you with 4 loud chirps (85 dB(A) at 3 metres) and a flashing red ‘CO’ LED light. NEVER IGNORE THIS ALARM.
• TEST BUTTON: Press the large test button to ensure your CO detector is working properly. A loud, high-pitched sound and the red LED flashing four times will verify that the alarm is functioning correctly.
• BATTERIES INCLUDED: Each CO monitor comes with 2 replaceable AA batteries. A flashing amber '!' and an audible chirp will alert you when the batteries need replacing. Test your FireAngel carbon monoxide alarm regularly to ensure it is operational.
• SLEEP EASY FUNCTION: Press the large test button to silence the low battery alert. This activates the Sleep Easy mode on the carbon monoxide monitor, muting the low battery chirp for 8 hours whilst the amber light flashes. Replace the batteries ASAP.
• TRAVEL CARBON MONOXIDE DETECTOR: Each portable device comes with an integrated mounting bracket and screws, allowing for easy wall mounting. Measuring 120 x 73 x 35.5 mm, it’s compact enough to travel with, providing on the go holiday protection.
• SAFETY ASSURED: The FA6813 detector holds a CE & UKCA mark and has been designed to conform to the standards BS EN 50291-1: 2008 and EN 50291-2: 2019. Suitable for homes in England and Wales, but not for Scottish homes under the new regulations.
• FIREANGEL HOME PROTECTION: In addition to our carbon monoxide detectors, we offer a wide range of other safety products designed to protect you and your family. Choose from smart and wireless devices, as well as standard fire, smoke, and heat alarms.

9.4/10

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2

Kidde

Kidde 10SCO Combination Smoke and Carbon Monoxide Alarm with Voice Notification

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• Alarms should be tested by pressing the test button in accordance with the supplied instructions.
• Reliable performance
• The voice warnings given by this alarm are: "fire! Fire!" "Warning! Carbon monoxide" "Caution, carbon monoxide previously detected" "Hush mode activated" "Hush mode cancelled" "Low battery"
• Designed to be wall- or ceiling-mounted, this battery-powered unit is ideal for when space is limited but protection is paramount. It can be used in most locations throughout the home but check in in-pack guidelines for specific installation instructions

9.4/10

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3

Kidde

Kidde 5CO Carbon Monoxide Alarm and Detector with AA Batteries - 10 Year Sensor Life CO Alarm for Home

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• BATTERY POWERED: Each alarm comes equipped with 2x AA batteries included, allowing your alarm to be set up immediately upon receipt
• 7 YEAR WARRANTY: Enjoy peace of mind knowing your alarm is protected with an extensive seven year manufacturer’s warranty
• FREE STANDING OR WALL MOUNTED: For ease of installation, the Kidde 5CO model can be placed free standing on any surface, or can be wall mounted with the included screws and wall plugs
• LIGHTWEIGHT & COMPACT: The 5CO’s sleek design allows this life-saving device to blend into your décor, while remaining uncompromising on its strict quality testing
• LOUD & ACCURATE ALARM: From just 50ppm of CO in the air, the Kidde 5CO will emit a loud 85db piercing alarm alerting occupants to the presence of carbon monoxid
• SAFETY APPROVED: CE and UKCA marked, and Kitemarked to the most up-to-date British Standards Institute (BSI) standard for carbon monoxide alarms (BS EN 50291-1:2018)

9.3/10

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4

Safelincs

Kidde 5DCO 10 Year Life Battery Powered Digital Display Carbon Monoxide Alarm

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• Compact, slimline case. Dimensions = 127mm x 73mm x 39mm. Weight = 170g.
• 10 year sensor lifespan. Powered by two replaceable AA batteries (supplied).
• 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

9.2/10

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5

Fireangel

FireAngel Optical Smoke Alarm 2-Pack - FA6620 10-Year Battery Smoke Alarms for Home with Test/Silence Button - Replacement for FireAngel ST-622/ST-620 - Early Smoke Detector Fire Alarm - White

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• SMOKE DETECTORS FOR HOME: The optical smoke alarm makes protecting your home simple. Its optical sensing chamber 'sees' smoke as it enters the alarm, providing a fast response to slow burning fires with thick white smoke.
• FEWER NUISANCE ALARMS: The advanced optical sensor ensures the FireAngel smoke alarm is less prone to false alerts from cooking fumes. Avoid placing near bathrooms or kitchens.
• 10-YEAR BATTERY: Each smoke alarm is fitted with a 10-year sealed battery, offering protection for the lifetime of the device without needing to change the batteries.
• EASY INSTALLATION: Fitted with a removable base plate, secure it to the ceiling using the screws provided. Push and twist to secure the device. The base plate is identical to the ST622, making replacements quick and easy.
• SAFETY ASSURED: The FA6620 smoke alarm holds CE and UKCA marks and is certified to BS EN 14604:2005+AC:2008. Suitable for domestic premises, including leisure accommodation vehicles, it comes with a 5-year warranty.

9.1/10

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6

Kidde

Kidde 2030-DCR Compact 10 Year Life Carbon Monoxide Alarm with AA batteries

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• Accurately alarms from 50 ppm of CO in the air
• Electro-chemical CO sensor accurately detects the presence of Carbon Monoxide and emits a loud, clear alarm to alert residents
• Suitable for installations in homes in England and Wales (not suitable for homes in Scotland under the new 2022 legislation)
• Sleek & compact - dimensions (HxWxD): 61 x 96 x 38mm
• Provides low battery warning when batteries require replacement
• CE marked, and UKCA tested and certified
• 3 Year Manufacturer’s Warranty
• TUV Certified to EN 50291-1:2018

8.9/10

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7

AEGISLINK

Smoke & Carbon Monoxide Alarm with Digital LCD Display, AEGISLINK Combination Smoke and CO Alarm Detector with 10-Year Lifespan & Replaceable Battery and Test/Silence Button, SC200

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• Informative LCD shows real-time CO concentrations and battery power to monitor for CO leaks and battery level; to save power, it will activate only when the device is tested or the ppm has reached the alarm level for a certain period
• This smoke and carbon monoxide alarm has long-lasting sensors and components that deliver a long life of up to 10 years; also includes a replaceable 3-year lithium battery
• Featuring a light and thin design, this combination smoke and carbon monoxide detector has a 20–40 m² (215–430 sq. ft) detection range, fully protecting you and your family from dangerous smoke and carbon monoxide
• This smoke and carbon monoxide detector is built with both a cutting-edge photoelectric smoke sensor and electrochemical CO sensor to deliver high consistency and reliability for double detection and protection
• The loud alarm tone is over 85 dB at 10 ft (3 m) to alert anyone in a deep sleep; with included screws and anchor plugs, this battery-operated unit can be installed effortlessly without an electrician

8.8/10

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8

Fireangel

FireAngel Carbon Monoxide Detector 10-Year Life Sealed Battery - FA3820 Carbon Monoxide Alarm for Home and Holiday - Portable CO Alarm - Travel Carbon Monoxide Detector and Monitor - White

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• CARBON MONOXIDE ALARMS FOR HOME USE: The advanced electrochemical sensor detects dangerous levels of carbon monoxide (CO) in your home, alerting you with 4 loud chirps (85 dB(A) at 3 metres) and a flashing red ‘CO’ LED light.
• ENHANCED SENSING: The alarm’s high sensitivity mode will activate if it predicts that CO levels will rise to or above 180 ppm, providing a quicker alert and a ‘pre alarm’ with a visual instruction to ‘ventilate'.
• 10-YEAR SEALED FOR LIFE BATTERY: Each CO monitor is fitted with a sealed, tamper proof, 10 year battery that will last the lifetime of the alarm. A flashing amber '!' and an audible beep will alert you when the device needs replacing.
• ALARM MEMORY: Your device will notify you of a CO alarm in your absence. If not silenced, the alarm will continue to sound until CO levels are safe. The red ‘CO’ light will continue flashing as a visual indication of a previous activation.
• PORTABLE CARBON MONOXIDE DETECTOR: Measuring 125 x 67 x 33 mm, this compact, free standing device is travel friendly and provides protection wherever you go. It also includes an integrated mounting bracket and screws for easy wall mounting.
• SAFETY ASSURED: Suitable for all domestic and rental premises, the FA3820 carbon monoxide monitor is CE and UKCA marked, Kitemark certified, and third-party approved by the British Standards Institute (BSI) to BS EN 50291-1:2018 and EN 50291-2:2019.
• FIREANGEL HOME PROTECTION: In addition to our carbon monoxide detectors, we offer a wide range of other safety products designed to protect you and your family. Choose from smart and wireless devices, as well as standard fire, smoke, and heat alarms.

8.7/10

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9

X-Sense

X-Sense Combination Smoke and Carbon Monoxide Alarm with English Voice Alerts, Smoke Alarm for Home with Replaceable Battery, XP0A-SR, 2-Pack

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• Important Note: The XP0A-SR Combination Smoke and Carbon Monoxide Alarm does not support interconnectivity or app functionality. It is designed to operate as a standalone device
• English Talking Alarm: Immediately understand the danger thanks to an English voice alert that sounds in conjunction with the siren; the built-in speaker delivers warnings specific to the detected danger type, such as "Warning! Smoke detected. Evacuate." or "Warning! Carbon monoxide detected. Move to fresh air."
• Easier Means Safer: Handy voice alerts keep you easily and quickly informed of important information such as emergencies, battery status, faults and lifespan; LCD screen displays a real-time carbon monoxide measure, battery status and other information; understand what’s going on without digging out the manual so you can take action quicker and keep your family safer
• 2-in-1 Protection: Get full protection from a single smoke alarm and carbon monoxide detector—the photoelectric and electrochemical CO sensors which work independently to instantly warn you of dangerous smoke or CO levels; keeps your family protected against 2 deadly threats with less hassle
• Sleek Design: Only 30 mm thick, this ultra-thin fire alarm and carbon monoxide detector blends in anywhere; the 135 mm diameter mounting bracket perfectly covers the hole left by your old alarm
• 10-Year Lifespan:Fire-retardant ABS material and 10-year sensor life offer reliable performance for up to 10 years; the replaceable CR123A battery lasts up to 5 years

8.6/10

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10

X-Sense

X-Sense Combination Smoke and Carbon Monoxide Alarm with LCD Display & 10-Year Battery, Smoke Alarm for Home Compliant with EN 14604 and EN 50291 Standards, SC07

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• Attention: The SC07 Combination Smoke and Carbon Monoxide Alarm is not compatible with the SBS50 Base Station and does not support interconnectivity or any APP functionality
• 2-In-1 Protection: Equipped with both photoelectric smoke sensor and electrochemical CO sensors that work independently of each other, this smoke alarm and carbon monoxide detector instantly notifies you when dangerous smoke or CO concentration is detected while minimizing false alarms; provides the ultimate protection from 2 deadly threats, all contained in 1 unit
• Built-In 10-Year Battery: Provides 10 years of continuous power with a built-in lithium battery, saving on energy while remaining eco-friendly; this smoke alarm and carbon monoxide alarm saves you from constantly having to change batteries or wonder if your alarm is still functioning
• Accurate, Reliable & Highly Sensitive: The X-Sense combination smoke and CO alarm has been redesigned from the inside out; it will ensure that smoke triggers the alarm instead of interference by taking 3 separate smoke samples from the surrounding air; a full 360 ° ring of air intakes ensures complete detection with no blind spots
• LED Indicator: Clearly informs you of the working status of the smoke alarm with its 3-color flashing LED indicator (green LED indicates normal operation, red LED indicates the alarm status, and yellow LED indicates a fault), ensuring the safety and security of your home 24/7
• Large LCD Display: Clearly displays battery level and the real-time CO levels in PPM (parts per million) taken from the surrounding air, with an updated measurement taken every 10 seconds, ensuring you are always aware of the status of your carbon monoxide and smoke detector

8.6/10

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