10 Best Carbon Monoxide Detector Dos
for May 2022

Recommendations are independently chosen by MOOZ’s editors. Purchases you make through our links may earn us a commission.

1
9.8
SCORE
Kidde AC Carbon Monoxide Detector Alarm | Plug-In with Battery Backup | Model KN-COP-DP2

Kidde AC Carbon Monoxide Detector Alarm

Plug-In with Battery Backup, Model KN-COP-DP2

by Kidde
What We like

Provides peace of mind against the silent killer; Temperature range: 40F (4.4C) to 100F (37.8C)

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Product Features

  • End of life alarm: Alerts user to replace CO alarm after 10-years of operation
  • 2 LEDs: Red - Illuminates when in alarm mode. Green AC power is present, normal operation
  • Test/reset button: Tests CO alarm circuit operation and allows you to immediately silence the alarm
  • Tamper resist feature Can be activated to cause unit to go into alarm if it has been unplugged or has come loose from the outlet

Tamper resist feature can be activated to cause unit to go into alarm if it has been unplugged or has come loose from the outlet Test/reset button: tests co alarm circuit operation and allows you to immediately silence the alarm 2 leds: red - illuminates when in alarm mode. green ac power is present, normal operation End of life alarm: alerts user to replace co alarm after 10-years of operation

2
9.5
SCORE
FIRST ALERT BRK SC9120B Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup, 1 pack

FIRST ALERT BRK SC9120B Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup

1 pack

by First Alert
What We like

Faster turnarounds on job sites with the easy-to-install, most-trusted alarms in home safety

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Product Features

  • Features an electrochemical carbon monoxide sensing technology as well as an ionization sensor for smoke detection.
  • Indicator lights on the face of the unit display the presence of smoke or carbon monoxide, while an 85 decibel siren provides a clear, loud warning upon detection
  • Can connect to other compatible BRK or First Alert detectors, to ensure all alarms will sound when threat is detected
  • Rigorously tested to meet UL standards
  • Simple to use, with a single test/silence button, and side load battery compartment; Tamper resistant locking brackets and universal mounting brackets make installation easy

Simple to use, with a single test/silence button, and side load battery compartment; tamper resistant locking brackets and universal mounting brackets make installation easy Keep your family safe with this hardwired smoke and carbon monoxide alarm; the battery backup means constant monitoring, even if there's a power failure Rigorously tested to meet ul standards First Alert has been the most trusted brand in home safety since launching the first residential smoke alarm in 1958 (based on a First Alert brand trust survey in february 2018) Indicator lights on the face of the unit display the presence of smoke or carbon monoxide, while an 85 decibel siren provides a clear, loud warning upon detection Features an electrochemical carbon monoxide sensing technology as well as an ionization sensor for smoke detection. Can connect to other compatible brk or First Alert detectors, to ensure all alarms will sound when threat is detected

3
9.2
SCORE
Kidde AC Plug-In Carbon Monoxide and Explosive Gas Detector Alarm | Nighthawk Sensor Technology | Model # KN-COEG-3

Kidde AC Plug-In Carbon Monoxide and Explosive Gas Detector Alarm

Nighthawk Sensor Technology, Model # KN-COEG-3

by Kidde
What We like

Test/reset button - Tests units electronic circuitry operation and allows you to immediately silence the alarm

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Product Features

  • Peak level memory - Recalls the highest CO concentration detected
  • Three convenient mounting options
  • Protects you and your family from 2 deadly threats: Carbon monoxide and explosive gas.
  • Battery backup 9 volt battery included
  • Two alarms in one detects carbon monoxide and explosive gas

Battery backup 9 volt battery included Digital display - displays the level of carbon monoxide the unit is sensing. Three convenient mounting options Protects you and your family from 2 deadly threats: carbon monoxide and explosive gas. Sounder alarm the kn-coeg-3 offers a loud 85-decibel pulsing alarm that will sound to alert you to a potential problem. Kiddes carbon monoxide alarms meet the requirements of underwriters laboratories (ul), an independent facility that tests products for compliance with widely-accepted safety standards Digital display and peak level button displays the peak co level recorded by the alarm since it was last reset Peak level memory - recalls the highest co concentration detected Two alarms in one detects carbon monoxide and explosive gas

4
9.1
SCORE
Kidde Nighthawk Plug-In AC/DC Carbon Monoxide Alarm Detector with Digital Display KN-COPP-3 , White - 900-0076-01

Kidde Nighthawk Plug-In AC/DC Carbon Monoxide Alarm Detector with Digital Display KN-COPP-3 , White

900-0076-01

by Kidde
What We like

Power source: 120VAC. Temperature range-40F (4.4C) to 100F (37.8C). Humidity range-5%-95% relative humidity (RH)

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Product Features

  • LED operation Blinking dot in lower right corner of display denotes normal operation
  • Note: This CO alarm is not battery operated. However, these alarms are equipped with 9 volt battery backup the 9 volt battery is to supply short term back-up during a power outage.
  • 10 years after the initial power up, this alarm will beep 2 times every 30 seconds to indicate that it is time to replace the alarm.
  • Peak level button Displays the peak CO level recorded by the alarm since it was last reset or unplugged
  • Test button functions Tests the unit for proper operation and resets the carbon monoxide alarm

Note: this co alarm is not battery operated. however, these alarms are equipped with 9 volt battery backup the 9 volt battery is to supply short term back-up during a power outage. Peak level button displays the peak co level recorded by the alarm since it was last reset or unplugged 10 years after the initial power up, this alarm will beep 2 times every 30 seconds to indicate that it is time to replace the alarm. Led operation blinking dot in lower right corner of display denotes normal operation Test button functions tests the unit for proper operation and resets the carbon monoxide alarm

5
8.8
SCORE
X-Sense 10-Year Battery (Not Hardwired) Combination Smoke & Carbon Monoxide Alarm Detector with LCD Display, Compliant with UL 217 & UL 2034 Standards, SC07

X-Sense 10-Year Battery (Not Hardwired) Combination Smoke & Carbon Monoxide Alarm Detector with LCD Display

Compliant with UL 217 & UL 2034 Standards, SC07

by X-Sense
What We like

2-IN-1 PROTECTION: Equipped with both photoelectric and electrochemical CO sensors that work independently of each other; 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

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Product Features

  • 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 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
  • BUILT-IN 10-YEAR BATTERY: Provides 10 years of continuous power with a built-in lithium battery, saving on energy while remaining eco-friendly; saves you from constantly having to change batteries or wonder if your alarm is still functioning
  • 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

Built-in 10-year battery: provides 10 years of continuous power with a built-in lithium battery, saving on energy while remaining eco-friendly; 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 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

6
8.5
SCORE
First Alert Z-Wave Smoke Detector & Carbon Monoxide Alarm, Works with Ring Alarm, 2nd Generation

First Alert Z-Wave Smoke Detector & Carbon Monoxide Alarm

Works with Ring Alarm, 2nd Generation

by First Alert
What We like

The Z-Wave Plus with Smart Start feature allows a faster and more intuitive connection of device to hub and on-boarding via QR code scan located on device

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Product Features

  • Photoelectric smoke sensor helps reduce false alarms caused by cooking or shower steam
  • Help keep your family safe with this battery-powered smoke detector and carbon monoxide alarm; includes 2 AA batteries
  • Receive real-time notifications in the Ring App when smoke or carbon monoxide is detected
  • Includes an 85-decibel horn, single test/silence button, side access to a tamper-resistant battery door, and pins that lock the alarm to the mounting bracket
  • Certified to work with smart home systems such as Ring Alarm, Samsung SmartThings, and Nexia Home Intelligence when connected to a Z-Wave Plus gateway hub (sold separately; Not compatible with Wink or Onelink)

Includes an 85-decibel horn, single test/silence button, side access to a tamper-resistant battery door, and pins that lock the alarm to the mounting bracket Photoelectric smoke sensor helps reduce false alarms caused by cooking or shower steam Certified to work with smart home systems such as ring alarm, samsung smartthings, and nexia home intelligence when connected to a z-wave plus gateway hub (sold separately; not compatible with wink or onelink) Receive real-time notifications in the ring app when smoke or carbon monoxide is detected This device is certified to work with ring; enjoy improved compatibility, easier setup and a seamless in-app experience Help keep your family safe with this battery-powered smoke detector and carbon monoxide alarm; includes 2 aa batteries

7
7
SCORE
Kidde Carbon Monoxide Alarm Detector | Digital Display | Battery Operated | Model KN-COPP-B-LPM

Kidde Carbon Monoxide Alarm Detector

Digital Display, Battery Operated, Model KN-COPP-B-LPM

by Kidde
What We like

Provides peace of mind against the silent killer and a digital display

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Product Features

  • LED's - Green LED for normal operation, Red LED for alarm. Temperature range 40F (4.4C) to 100F (37.8C). Sensor: Electrochemical
  • Battery Operated - Provides the best protection during power outages. Battery safeguard makes it difficult to close the cover without batteries in the unit. Low battery signal alerts user when the batteries need to be replaced. Slide-out battery door cover gives immediate access to batteries
  • Digital Display - Displays the level of carbon monoxide the unit is sensing. Shows CO level in PPM (parts per million). Updates digital reading every 15 seconds, allowing you to see if levels change. Peak Level Memory displays the highest CO concentration measured since the last reset
  • Test/Reset Button - Tests units electronic circuitry & horn and resets the unit during alarm. Tests CO alarm circuit operation and allows you to immediately silence the alarm

Battery operated - provides the best protection during power outages. battery safeguard makes it difficult to close the cover without batteries in the unit. low battery signal alerts user when the batteries need to be replaced. slide-out battery door cover gives immediate access to batteries Led's - green led for normal operation, red led for alarm. temperature range 40f (4.4c) to 100f (37.8c). sensor: electrochemical Digital display - displays the level of carbon monoxide the unit is sensing. shows co level in ppm (parts per million). updates digital reading every 15 seconds, allowing you to see if levels change. peak level memory displays the highest co concentration measured since the last reset Test/reset button - tests units electronic circuitry & horn and resets the unit during alarm. tests co alarm circuit operation and allows you to immediately silence the alarm

8
7
SCORE
FIRST ALERT BRK SC7010B Hardwired Smoke and Carbon Monoxide (CO) Detector with Photoelectric Sensor

FIRST ALERT BRK SC7010B Hardwired Smoke and Carbon Monoxide (CO) Detector with Photoelectric Sensor

by First Alert
What We like

In case of danger, the loud spread spectrum alarm is designed to be heard easily by even those with some hearing issues

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Product Features

  • Can connect to other compatible BRK or First Alert detectors, to ensure all alarms will sound when threat is detected
  • Features electrochemical Carbon Monoxide sensing technology as well as a photoelectric sensor equipped with Optipath 360 technology that enhances detection with 360 degree access and reliably detects smoke from smoldering fires
  • First Alert has been the most trusted brand in home safety since launching the first residential smoke alarm in 1958 (Based on a First Alert Brand Trust Survey in February 2018)
  • Keep your family safe with this hardwired smoke and carbon monoxide alarm; The battery backup means constant monitoring, even if there's a power failure
  • Rigorously tested to meet UL standards

First Alert has been the most trusted brand in home safety since launching the first residential smoke alarm in 1958 (based on a First Alert brand trust survey in february 2018) Rigorously tested to meet ul standards Faster turnarounds on job sites with the easy-to-install, most-trusted alarms in home safety Can connect to other compatible brk or First Alert detectors, to ensure all alarms will sound when threat is detected Keep your family safe with this hardwired smoke and carbon monoxide alarm; the battery backup means constant monitoring, even if there's a power failure Features electrochemical carbon monoxide sensing technology as well as a photoelectric sensor equipped with optipath 360 technology that enhances detection with 360 degree access and reliably detects smoke from smoldering fires

9
7
SCORE
Kidde Smoke and Carbon Monoxide Detector Alarm with Voice Warning | Hardwired w/10 Year Lithium Battery Backup | Interconnectable | Model # i12010SCO, White

Kidde Smoke and Carbon Monoxide Detector Alarm with Voice Warning

Hardwired w/10 Year Lithium Battery Backup, Interconnectable, Model # i12010SCO, White

by Kidde
What We like

Hush feature - Temporarily silences nuisance alarms for approximately 9 minutes and will not allow hush mode unless the unit is in alarm mode. Interconnects - Up to 24 Kidde devices (of which 18 can be initiating).Flashes once every 60 seconds to indicate battery only mode

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Product Features

  • Provides protection from two hazards - Fire and CO in one unit with 10-year sealed lithium battery backup.
  • Sealed-in lithium battery backup - No battery replacement required over the 10 year life of the alarm. Eliminates worry about removal or unauthorized deactivation of alarm.
  • Compatible with Kidde, FireX, code one and sentinel products
  • Ionization sensing technology - Ideal for detecting fast flaming and other types of fires. Temperature Range: 40 degree F (4.4 degree C) to 100 degree F (37.8 degree C)
  • Voice warning system - Verbally announces Fire or Warning, Carbon monoxide to help distinguish between threats. Audio alarm: 85 dB at 10 feet

Ionization sensing technology - ideal for detecting fast flaming and other types of fires. temperature range: 40 degree f (4.4 degree c) to 100 degree f (37.8 degree c) Compatible with Kidde, firex, code one and sentinel products Provides protection from two hazards - fire and co in one unit with 10-year sealed lithium battery backup. Sealed-in lithium battery backup - no battery replacement required over the 10 year life of the alarm. eliminates worry about removal or unauthorized deactivation of alarm. Voice warning system - verbally announces fire or warning, carbon monoxide to help distinguish between threats. audio alarm: 85 db at 10 feet

10
7
SCORE
X-Sense 2-in-1 Smoke and Carbon Monoxide Detector Alarm (Not Hardwired), 10-Year Battery-Operated Dual Sensor Fire & CO Alarm, Compliant with UL 217 & UL 2034 Standards, SC06

X-Sense 2-in-1 Smoke and Carbon Monoxide Detector Alarm (Not Hardwired)

10-Year Battery-Operated Dual Sensor Fire & CO Alarm, Compliant with UL 217 & UL 2034 Standards, SC06

by X-Sense
What We like

Simple Installation & Operation: This battery-operated unit can be installed quickly and effortlessly without an electrician; one-button operation allows you to test and silence the alarm with ease

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Product Features

  • 10-Year Battery-Operated Smoke and CO Alarm: A sealed lithium battery enables the unit tokeep you and your family safe and sound for up to a decade with no need to replace batteries frequently; a low battery warning lets you know the unit is coming to its end of life
  • Combination Smoke and Carbon Monoxide Alarm: One alarm to protect against 2 deadly threats, including smoke and carbon monoxide; accurately detects carbon monoxide from any potential source
  • Faster Response to Dangers with Loud 85 dB Alarm: Upgraded photoelectric and electrochemical sensors significantly increase the sensitivity of the alarm for a faster response time while minimizing false alarms

Faster response to dangers with loud 85 db alarm: upgraded photoelectric and electrochemical sensors significantly increase the sensitivity of the alarm for a faster response time while minimizing false alarms 10-year battery-operated smoke and co alarm: a sealed lithium battery enables the unit tokeep you and your family safe and sound for up to a decade with no need to replace batteries frequently; a low battery warning lets you know the unit is coming to its end of life Combination smoke and carbon monoxide alarm: one alarm to protect against 2 deadly threats, including smoke and carbon monoxide; accurately detects carbon monoxide from any potential source

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