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10 bestCo Detectorsof November 2025

112M consumers helped this year.

1

First Alert CO615A Carbon Monoxide Plug-In Alarm with Battery Backup and Digital Display

First Alert CO615A Carbon Monoxide Plug-In Alarm with Battery Backup and Digital Display

First Alert CO615A Carbon Monoxide Plug-In Alarm with Battery Backup and Digital Display

First Alert

9.8

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8% off

2

FIRST ALERT Smoke and CO Alarm, SC7010BA, White

FIRST ALERT Smoke and CO Alarm, SC7010BA, White

FIRST ALERT Smoke and CO Alarm, SC7010BA, White

First Alert

9.6

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3

First Alert Battery Operated Smoke and Carbon Monoxide Alarm, White, PRC700A-6

First Alert Battery Operated Smoke and Carbon Monoxide Alarm, White, PRC700A-6

First Alert Battery Operated Smoke and Carbon Monoxide Alarm, White, PRC700A-6

First Alert

9.4

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4

DYWL SECURITY Carbon Monoxide Detectors Portable Carbon Monoxide Detector for Travel Carbon Monoxide Detector Plug in Wall with LED Digital Display Voice Light Plug and Play - 2Pack

DYWL SECURITY Carbon Monoxide Detectors Portable Carbon Monoxide Detector for Travel Carbon Monoxide Detector Plug in Wall with LED Digital Display Voice Light Plug and Play - 2Pack

DYWL SECURITY Carbon Monoxide Detectors Portable Carbon Monoxide Detector for Travel Carbon Monoxide Detector Plug in Wall with LED Digital Display Voice Light Plug and Play - 2Pack

DYWL SECURITY

9.2

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5

Kidde 900-0263CO-CA Plug-in Carbon Monoxide Alarm (KN-COB-DP2CA), White, 1 Units

Kidde 900-0263CO-CA Plug-in Carbon Monoxide Alarm (KN-COB-DP2CA), White, 1 Units

Kidde 900-0263CO-CA Plug-in Carbon Monoxide Alarm (KN-COB-DP2CA), White, 1 Units

Kidde

8.9

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OtherRelated productsUp to 26% off

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

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

First Alert Battery Operated Carbon Monoxide Alarm with Digital Display

First Alert Battery Operated Carbon Monoxide Alarm with Digital Display

Plug in Carbon Monoxide Detector 3in1 CO Temperature Humidity Monitor with 2.1'' HD Screen & Indicator Visual&Audible Alarm for Home Travel Hotel RV

Plug in Carbon Monoxide Detector 3in1 CO Temperature Humidity Monitor with 2.1'' HD Screen & Indicator Visual&Audible Alarm for Home Travel Hotel RV

LSENLTY Carbon Monoxide Detector, High Accuracy CO Detector with Digital LCD Display, 3-in-1 Air Quality Monitor(CO, Temperature and Humidity Sensor), CO Alarm Detector for Home Kitchen Travel

LSENLTY Carbon Monoxide Detector, High Accuracy CO Detector with Digital LCD Display, 3-in-1 Air Quality Monitor(CO, Temperature and Humidity Sensor), CO Alarm Detector for Home Kitchen Travel

14% off

6

Kidde P3010CU Photoelectric Smoke & Carbon Monoxide Alarm with Voice Warning System

Kidde P3010CU Photoelectric Smoke & Carbon Monoxide Alarm with Voice Warning System

Kidde P3010CU Photoelectric Smoke & Carbon Monoxide Alarm with Voice Warning System

Kidde

8.6

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7

Carbon Monoxide Detector,CO Alarm Detector with Digital Display and Sound Alarm for Home 2pcs

Carbon Monoxide Detector,CO Alarm Detector with Digital Display and Sound Alarm for Home 2pcs

Carbon Monoxide Detector,CO Alarm Detector with Digital Display and Sound Alarm for Home 2pcs

Ledronco

8.4

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12% off

8

First Alert CO400A Battery Powered Carbon Monoxide Alarm

First Alert CO400A Battery Powered Carbon Monoxide Alarm

First Alert CO400A Battery Powered Carbon Monoxide Alarm

First Alert

8.1

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9

Techamor Y401 Natural Gas Detector, Home Gas Alarm and Monitor, Propane Gas Detector and Gas Leak Alarm for LNG, LPG, Methane, Coal Gas Detection in Kitchen, Home, Camper (1)

Techamor Y401 Natural Gas Detector, Home Gas Alarm and Monitor, Propane Gas Detector and Gas Leak Alarm for LNG, LPG, Methane, Coal Gas Detection in Kitchen, Home, Camper (1)

Techamor Y401 Natural Gas Detector, Home Gas Alarm and Monitor, Propane Gas Detector and Gas Leak Alarm for LNG, LPG, Methane, Coal Gas Detection in Kitchen, Home, Camper (1)

TECHAMOR

7.8

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10

TopTes Guard-101 4 Gas Monitor Multi Gas Detector for H2S, CO, LEL and O2, with Vibration, Visual and Audible Alarms, 14h Long Battery Life, Safety Explosion-Proof, Gas Monitor for Work, Home - Orange

TopTes Guard-101 4 Gas Monitor Multi Gas Detector for H2S, CO, LEL and O2, with Vibration, Visual and Audible Alarms, 14h Long Battery Life, Safety Explosion-Proof, Gas Monitor for Work, Home - Orange

TopTes Guard-101 4 Gas Monitor Multi Gas Detector for H2S, CO, LEL and O2, with Vibration, Visual and Audible Alarms, 14h Long Battery Life, Safety Explosion-Proof, Gas Monitor for Work, Home - Orange

TOPTES

7.5

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