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Carbon Monoxide Detectors

10 Best Carbon Monoxide Detectors 2025 in the United States

Name: X-Sense 10-Year Battery Combination Smoke Carbon Monoxide Alarm Detector with Large LCD Display (Standalone Model)
Brand: X-Sense
Price: 32.99 USD
Availability: InStock

TopTes CT-300 Portable Carbon Monoxide Detector, CO Detector with Audible & Visual Alarm, 0-5000PPM, CO Alarm, Backlit LCD Screen, for Home, Car, Camping& Travel (Includes Battery x3) - Orange

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Winner

X-Sense

Editor’s Choice

X-Sense 10-Year Battery Combination Smoke Carbon Monoxide Alarm Detector with Large LCD Display (Standalone Model)

9.9

score

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TopTes CT-300 Portable Carbon Monoxide Detector, CO Detector with Audible & Visual Alarm, 0-5000PPM, CO Alarm, Backlit LCD Screen, for Home, Car, Camping& Travel (Includes Battery x3) - Orange

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Kidde

Kidde Carbon Monoxide Detector, Plug In Wall with AA Battery Backup, Test-Hush Button

9.8

score

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Kidde

Kidde Carbon Monoxide Detector, Battery Powered CO Alarm with LEDs, Test-Reset Button, Low Battery Indicator, Portable

9.7

score

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FIRST ALERT

FIRST ALERT Plug-In Carbon Monoxide Detector with Battery Backup, (Pack of 3), CO605

9.6

score

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Kidde

Kidde Smoke & Carbon Monoxide Detector, 10-Year Battery Powered, LED Warning Light Indicators, 4 Pack

9.4

score

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FIRST ALERT

First Alert SMICO100-AC Interconnect Hardwire Combination Smoke & Carbon Monoxide Alarm with Battery Backup, 1-Pack

9.2

score

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FIRST ALERT

First Alert BRK SC-9120B Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup

8.9

score

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FIRST ALERT

First Alert SMCO210, 10-Year Sealed Battery Combination Smoke & Carbon Monoxide Alarm with Slim Profile Design, 1-Pack

8.6

score

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X-Sense

X-Sense Smoke Detector Carbon Monoxide Detector Combo, 10-Year Battery Smoke Detector with Display, Auto-Check, 3-Pack

8.4

score

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#10

FIRST ALERT

First Alert CO400 Carbon Monoxide (CO) Detector, Battery Operated Alarm, 1-Pack

8.1

score

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10 Best Carbon Monoxide Detectors 2025 in the United States

TopTes CT-300 Portable Carbon Monoxide Detector, CO Detector with Audible & Visual Alarm, 0-5000PPM, CO Alarm, Backlit LCD Screen, for Home, Car, Camping& Travel (Includes Battery x3) - Orange

X-Sense 10-Year Battery Combination Smoke Carbon Monoxide Alarm Detector with Large LCD Display (Standalone Model)

TopTes CT-300 Portable Carbon Monoxide Detector, CO Detector with Audible & Visual Alarm, 0-5000PPM, CO Alarm, Backlit LCD Screen, for Home, Car, Camping& Travel (Includes Battery x3) - Orange

Kidde Carbon Monoxide Detector, Plug In Wall with AA Battery Backup, Test-Hush Button

Kidde Carbon Monoxide Detector, Battery Powered CO Alarm with LEDs, Test-Reset Button, Low Battery Indicator, Portable

FIRST ALERT Plug-In Carbon Monoxide Detector with Battery Backup, (Pack of 3), CO605

Kidde Smoke & Carbon Monoxide Detector, 10-Year Battery Powered, LED Warning Light Indicators, 4 Pack

First Alert SMICO100-AC Interconnect Hardwire Combination Smoke & Carbon Monoxide Alarm with Battery Backup, 1-Pack

First Alert BRK SC-9120B Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup

First Alert SMCO210, 10-Year Sealed Battery Combination Smoke & Carbon Monoxide Alarm with Slim Profile Design, 1-Pack

X-Sense Smoke Detector Carbon Monoxide Detector Combo, 10-Year Battery Smoke Detector with Display, Auto-Check, 3-Pack

First Alert CO400 Carbon Monoxide (CO) Detector, Battery Operated Alarm, 1-Pack

FAQ

What is the best location to install carbon monoxide detectors in my home?

How often should carbon monoxide detectors be replaced?

What are the symptoms of carbon monoxide poisoning?

Are there different types of carbon monoxide detectors?

How can I test if my carbon monoxide detector is working?

10 Best Carbon Monoxide Detectors 2025 in the United States

TopTes CT-300 Portable Carbon Monoxide Detector, CO Detector with Audible & Visual Alarm, 0-5000PPM, CO Alarm, Backlit LCD Screen, for Home, Car, Camping& Travel (Includes Battery x3) - Orange

X-Sense 10-Year Battery Combination Smoke Carbon Monoxide Alarm Detector with Large LCD Display (Standalone Model)

TopTes CT-300 Portable Carbon Monoxide Detector, CO Detector with Audible & Visual Alarm, 0-5000PPM, CO Alarm, Backlit LCD Screen, for Home, Car, Camping& Travel (Includes Battery x3) - Orange

Kidde Carbon Monoxide Detector, Plug In Wall with AA Battery Backup, Test-Hush Button

Kidde Carbon Monoxide Detector, Battery Powered CO Alarm with LEDs, Test-Reset Button, Low Battery Indicator, Portable

FIRST ALERT Plug-In Carbon Monoxide Detector with Battery Backup, (Pack of 3), CO605

Kidde Smoke & Carbon Monoxide Detector, 10-Year Battery Powered, LED Warning Light Indicators, 4 Pack

TopTes CT-300 Portable Carbon Monoxide Detector, CO Detector with Audible & Visual Alarm, 0-5000PPM, CO Alarm, Backlit LCD Screen, for Home, Car, Camping& Travel (Includes Battery x3) - Orange

Portable Professional Carbon Monoxide Detector with LCD Display - Battery-Operated CO Monitor – 0-1000PPM Range Easy-to-Use CO Detector for Professionals, Homes, RVs & Worksites (3-AAA Batteries)

Kidde Carbon Monoxide Detector, Plug In Wall with 9-Volt Battery Backup, Digital LED Display

X-Sense Combination Smoke and Carbon Monoxide Detector with Voice Location, Interconnected Smoke Detector Carbon Monoxide Detector Combo with Base Station (Included), Model XP0A-MR31

First Alert CO600 Plug-In Carbon Monoxide Detector

X-Sense Smart Smoke Detector Carbon Monoxide Detector Combo with Replaceable Battery, Wi-Fi Smoke and Carbon Monoxide Detector with Real-Time App Notifications, SC07-WX, 1-Pack

X-Sense 2-in-1 Smoke and Carbon Monoxide Detector Alarm (Not Hardwired), 10-Year Battery-Operated Dual Sensor Fire & CO Alarm, SC06, 1-Pack

First Alert SMICO100-AC Interconnect Hardwire Combination Smoke & Carbon Monoxide Alarm with Battery Backup, 1-Pack

First Alert BRK SC-9120B Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup

First Alert SMCO210, 10-Year Sealed Battery Combination Smoke & Carbon Monoxide Alarm with Slim Profile Design, 1-Pack

X-Sense Smoke Detector Carbon Monoxide Detector Combo, 10-Year Battery Smoke Detector with Display, Auto-Check, 3-Pack

First Alert CO400 Carbon Monoxide (CO) Detector, Battery Operated Alarm, 1-Pack

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FAQ

What is the best location to install carbon monoxide detectors in my home?

How often should carbon monoxide detectors be replaced?

What are the symptoms of carbon monoxide poisoning?

Are there different types of carbon monoxide detectors?

How can I test if my carbon monoxide detector is working?