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10 Best carbon monoxide detectors of 2026
Save up to 10% off
Best Choice1
First Alert9.9Exceptional
FIRST ALERT CO400-3 Carbon Monoxide Detector, Battery Operated, White , 3-Pack -CO400-3
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Value for Money2
Kidde9.8Exceptional
Kidde Carbon Monoxide Detector, AA Battery Powered CO Alarm with LEDs, Test-Reset Button, Low Battery Indicator, Portable
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color:‎Detector
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pattern:‎Detector
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batteries included:‎Yes
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item model number:‎KN-COPP-B-LPM
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best sellers rank:#619 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #4 in Carbon Monoxide Detectors
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First Alert9.7Exceptional
First Alert CO400 Carbon Monoxide (CO) Detector, Battery Operated Alarm, 1-Pack
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color: White
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pattern: Detector
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batteries included: Yes
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item model number: CO400
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best sellers rank: 508 in Tools & Home Improvement See Top 100 in Tools & Home Improvement 4 in Carbon Monoxide Detectors
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4
Kidde9.4Excellent
Kidde Carbon Monoxide Detector, Plug-In with 9V Battery Backup, Digital Display, 85 dB Alarm, LED Status Light Indicators, 3rd Edition
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color: White
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pattern: Detector
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batteries included: Yes
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item model number: KN-COPP-3
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best sellers rank: 2,848 in Tools & Home Improvement See Top 100 in Tools & Home Improvement 10 in Carbon Monoxide Detectors 12 in Smoke & Carbon Monoxide Alarms
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5
First Alert9.2Excellent
FIRST ALERT Carbon Monoxide Detector, No Outlet Required, Battery Operated, CO400, White, 2 Count (Pack of 1)
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color: White
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pattern: Detector
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batteries included: Yes
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item model number: CO400
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best sellers rank: 481 in Tools & Home Improvement See Top 100 in Tools & Home Improvement 4 in Carbon Monoxide Detectors
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6
Kidde8.9Very Good
Kidde Carbon Monoxide Detector, Plug-in Carbon Monoxide Detector with AA Battery Backup, 85 dB Alarm, LED Status Light Indicators, 3rd Edition
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7
TOPTES8.8Very Good
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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color: Orange
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pattern:N/A
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batteries included: Yes
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item model number: CT-300
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best sellers rank: 8,784 in Tools & Home Improvement See Top 100 in Tools & Home Improvement 23 in Carbon Monoxide Detectors
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8
TOPTES8.6Very Good
PT199 Natural Gas Leak Detector with Audible & Visual Alarm, Portable Gas Sniffer to Locate Combustible Sources Like Methane, Propane for Home(Includes Battery x2)-Orange
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product dimensions:‎0.79"D x 0.79"W x 6.5"H
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color:‎Orange
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batteries:‎2 AAA batteries required. (included)
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upper temperature rating:‎122 Degrees Fahrenheit
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item weight:‎2.08 ounces
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9
Kidde8.4Good
Kidde Carbon Monoxide Detector, AA Battery Powered, Portable for Travel or Home, 85 dB Alarm, LED Status Indicators, 3rd Edition
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10
First Alert8.2Good
First Alert Carbon Monoxide Detector, Plug-In Alarm with Battery Backup, CO606, White, 1-Pack
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color:‎White
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pattern:‎Alarm
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batteries included:‎Yes
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item model number:‎CO605
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best sellers rank:#71 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #1 in Carbon Monoxide Detectors
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