10 bestCarbon Monoxide Detectorof November 2025
112M consumers helped this year.
1
Twin Pack Kidde 5CO Battery Powered Carbon Monoxide Alarm and Detector - 10 Year Sensor Life with AA Batteries
Kidde
9.8
2
X-Sense Smart Carbon Monoxide Detector, Silence via App, CO Alarm with LCD Digital Display, Carbon Monoxide Alarm with Replaceable Battery, Compatible with X-Sense Home Security App, XC0C-iR
X-Sense
9.6
15% off
3
FireAngel FA6812 Digital Carbon Monoxide Detector with LCD Screen, 10-Year CO Alarm Sensor, Portable Carbon Monoxide Alarm for Home, Travel, Caravan
Fireangel
9.4
17% off
4
Google Nest Protect - Smoke Alarm And Carbon Monoxide Detector (Wired)
9.2
36% off
5
X-Sense Carbon Monoxide Detector, Replaceable Battery Powered CO Alarm with Digital Display, Portable Carbon Monoxide Alarm for Home with CO Peak Value Memory, XC0C-SR, 2-Pack
X-Sense
8.9
OtherUp to 28% off
Kidde 4MCO Carbon Monoxide Alarm - Hard Wired - Mains Powered - 230v
FireAngel Digital Carbon Monoxide Detector with 10-Year Sealed for Life Battery - FA3322 Humidity, Temperature and CO Alarm - Portable Carbon Monoxide Alarms for Home and Travel - CO Detector Monitor
Aico Ei3028 Mains Powered Multi-Sensor Heat & Carbon Monoxide Alarm
Carbon Monoxide Detector, Carbon Monoxide Alarm, Detector with LED Display (PPM Value Visible at All Times) and 85 dB Audible and Visual Alarm.
33% off
6
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, Single
Fireangel
8.7
8% off
7
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
X-Sense
8.4
29% off
8
X-Sense Wi-Fi Combination Smoke Alarm and Carbon Monoxide Alarm with Replaceable Battery, Smart Fire Alarm Compatible with X-Sense Home Security App, SC07-WX, 1-Pack
X-Sense
8.1
15% off
9
X-Sense Wi-Fi Combination Smoke and Carbon Monoxide Alarm with English Voice Alerts, Smart Smoke Alarm for Home with Replaceable Battery, XP0A-iR, 2-Pack
X-Sense
7.8
15% off
10
X-Sense Combination Smoke and Carbon Monoxide Alarm with English Voice Alerts, Smoke Alarm for Home with Replaceable Battery, XP0A-SR, 2-Pack
X-Sense
7.5
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A Guide to Selecting the Best Carbon Monoxide Detector
Choosing the right carbon monoxide detector is crucial for ensuring the safety of your home and loved ones. Carbon monoxide is a colorless, odorless gas that can be deadly, so having a reliable detector can alert you to its presence and help prevent poisoning. When selecting a carbon monoxide detector, consider the following key specifications to find the best fit for your needs.
Sensor Type
The sensor type in a carbon monoxide detector determines how it detects the gas. There are three main types: electrochemical, metal oxide semiconductor, and biomimetic. Electrochemical sensors are the most common and reliable, providing accurate readings and quick response times. Metal oxide semiconductor sensors are less common and can be less accurate, while biomimetic sensors use a gel that changes color when exposed to carbon monoxide. For most users, an electrochemical sensor is the best choice due to its reliability and accuracy.
Power Source
Carbon monoxide detectors can be powered by batteries, hardwired into your home's electrical system, or plugged into an outlet. Battery-powered detectors are easy to install and can be placed anywhere, but they require regular battery changes. Hardwired detectors are more permanent and often come with battery backups, ensuring they work even during power outages. Plug-in detectors are convenient but need to be near an outlet. Choose a power source that fits your home's setup and your preference for maintenance.
Display and Alerts
A good carbon monoxide detector should have clear display and alert features. Look for detectors with digital displays that show current CO levels, as this can help you monitor any fluctuations. Audible alarms are essential, as they will alert you to dangerous CO levels even if you're asleep. Some detectors also have visual alerts, like flashing lights, which can be helpful for those with hearing impairments. Choose a detector with alert features that suit your household's needs.
Interconnectivity
Interconnectivity allows multiple carbon monoxide detectors to communicate with each other. If one detector senses carbon monoxide, all interconnected detectors will sound the alarm. This feature is particularly useful in larger homes or multi-story buildings, ensuring that everyone is alerted to danger no matter where they are. If you have a larger home or want added safety, consider detectors with interconnectivity.
Lifespan and Warranty
Carbon monoxide detectors have a limited lifespan, typically between 5 to 10 years, after which they need to be replaced. Check the manufacturer's recommendations for the lifespan of the detector and look for models with a long warranty period. A longer warranty can provide peace of mind and ensure that you're covered in case of any defects. Choose a detector with a lifespan and warranty that align with your expectations for durability and reliability.
Additional Features
Some carbon monoxide detectors come with additional features like smoke detection, smart home integration, or mobile alerts. Smoke detection can provide added safety by combining two functions in one device. Smart home integration allows you to connect the detector to your home automation system, enabling remote monitoring and control. Mobile alerts can notify you of CO levels even when you're not at home. Consider these additional features if they align with your lifestyle and enhance your home's safety.
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