10 Best Carbon Monoxide Detectors For Home
for January 2022

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

1
9.9
SCORE
Kidde KN-COSM-IBA Hardwire Combination Smoke Carbon Monoxide Detector Battery Backup Voice Warning Interconnectable

Kidde KN-COSM-IBA Hardwire Combination Smoke Carbon Monoxide Detector Battery Backup Voice Warning Interconnectable

by Kidde
What We like

Ionization Sensor Technology-Ideal for detecting fast flaming and other types of fires, est Button Functions: Tests the unit for proper operation - Peak Level memory - Resets the Carbon Monoxide alarm

more infoarrow_drop_down

Product Features

  • Green LED-Illuminates to indicate the unit is receiving AC power. Flashes once every 60 seconds to indicate battery only mode. Flashes once per second during alarm to indicate initiating alarm. Flashes once every 16 seconds to indicate smoke or CO previously detected. Flashes every 2 seconds while the alarm is in HUSHTM mode
  • Battery safeguard ensures the unit cannot be accidentally mounted without batteries
  • Red LED-When a dangerous level of smoke or carbon monoxide is detected the red LED will flash. If the unit malfunctions, the red LED will flash and the unit will chirp every 30 seconds
  • Test-reset button tests alarm circuitry and triggers the voice announcement
  • Talking alarm announces the hazard type detected, helping to speed up reaction time

Smart interconnect-interconnects up to 24 Kidde devices (of which 18 can be initiating), battery backup (2-aa batteries included)-provides protection during power outages. front loading battery door-replace the backup batteries without disconnecting from mounting bracket Battery safeguard ensures the unit cannot be accidentally mounted without batteries Test-reset button tests alarm circuitry and triggers the voice announcement Meets safety standards set by underwriters laboratories (ul) and interconnects with other kn-cosm-iba models Green led-illuminates to indicate the unit is receiving ac power. flashes once every 60 seconds to indicate battery only mode. flashes once per second during alarm to indicate initiating alarm. flashes once every 16 seconds to indicate smoke or co previously detected. flashes every 2 seconds while the alarm is in hushtm mode Combined carbon monoxide and smoke alarm, a single unit can be installed where previously two were needed Red led-when a dangerous level of smoke or carbon monoxide is detected the red led will flash. if the unit malfunctions, the red led will flash and the unit will chirp every 30 seconds Talking alarm announces the hazard type detected, helping to speed up reaction time Peak level memory-announces carbon monoxide previously detected if alarm has detected a co level of 100ppm or higher since it was last reset, hushtm feature-silences nuisance alarms for approximately 9 minutes. (smoke must be present before hushtm is activated) 120v ac, all Kidde brand hard wired smoke alarms are interconnectable with the kn-cosm-iba

2
9.9
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

more infoarrow_drop_down

Product Features

  • 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)
  • 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
  • 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
  • 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

Can connect to other compatible brk or First Alert detectors, to ensure all alarms will sound when threat is detected 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 Rigorously tested to meet ul standards 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 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 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) Features an electrochemical carbon monoxide sensing technology as well as an ionization sensor for smoke detection.

3
9.2
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)

more infoarrow_drop_down

Product Features

  • LED operation Blinking dot in lower right corner of display denotes normal operation
  • 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.
  • 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.
  • 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 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 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.

4
9
SCORE
FIRST ALERT Carbon Monoxide Detector|No Outlet Required, Battery Operated, 2-Pack, CO400

FIRST ALERT Carbon Monoxide Detector

No Outlet Required, Battery Operated, 2-Pack, CO400

by First Alert
What We like

Keep your family safe with this 2-Pack of easy to use, battery operated carbon monoxide alarms; Battery powered alarms provide continuous monitoring of CO levels, even if there's a power failure

more infoarrow_drop_down

Product Features

  • A loud 85-decibel alarm sounds when CO levels reach dangerous levels
  • All first alert CO alarms are rigorously tested to meet UL standards
  • Features an advanced electrochemical carbon monoxide sensor that accurately detects carbon monoxide levels, no matter where the detector is placed in the room
  • To ensure complete protection make sure to place one on each level of your home and in each bedroom

To ensure complete protection make sure to place one on each level of your home and in each bedroom All First Alert co alarms are rigorously tested to meet ul standards Features an advanced electrochemical carbon monoxide sensor that accurately detects carbon monoxide levels, no matter where the detector is placed in the room A loud 85-decibel alarm sounds when co levels reach dangerous levels

5
8.8
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

more infoarrow_drop_down

Product Features

  • Three convenient mounting options
  • Battery backup 9 volt battery included
  • Two alarms in one detects carbon monoxide and explosive gas
  • Digital display - Displays the level of carbon monoxide the unit is sensing.
  • Sounder alarm The KN-COEG-3 offers a loud 85-decibel pulsing alarm that will sound to alert you to a potential problem.

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

6
8.6
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

more infoarrow_drop_down

Product Features

  • 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
  • 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
  • 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
  • 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 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 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

7
7.3
SCORE
FIRST ALERT Carbon Monoxide Detector with 10-Year Battery and Digital Temperature Display, CO710

FIRST ALERT Carbon Monoxide Detector with 10-Year Battery and Digital Temperature Display

CO710

by First Alert / BRK Brands, Inc.
What We like

Keep your family safe with this easy to use digital-display, 10-Year battery operated carbon monoxide alarm; Battery powered alarms provide continuous monitoring of CO levels, even if there's a power failure

more infoarrow_drop_down

Product Features

  • A loud 85-decibel alarm sounds when CO levels reach dangerous levels
  • Easy-to-read backlit digital display shows temperature and CO concentration; Peak Level feature displays the highest concentration of carbon monoxide measured
  • All first alert CO alarms are rigorously tested to meet UL standards
  • Built-in 10-year lithium battery offers continuous protection for the life of the carbon monoxide detector
  • 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)

Built-in 10-year lithium battery offers continuous protection for the life of the carbon monoxide detector Easy-to-read backlit digital display shows temperature and co concentration; peak level feature displays the highest concentration of carbon monoxide measured 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) All first alert co alarms are rigorously tested to meet ul standards A loud 85-decibel alarm sounds when co levels reach dangerous levels

8
7.3
SCORE
Kidde 21006406 Hardwire Carbon Monoxide Detector Alarm with Battery Backup, Interconnectable | Model KN-COB-IC

Kidde 21006406 Hardwire Carbon Monoxide Detector Alarm with Battery Backup, Interconnectable

Model KN-COB-IC

by Kidde
What We like

Important: This carbon monoxide alarm is designed to detect carbon monoxide from any source of combustion. It is not designed to detect smoke, fire, or any other gas

more infoarrow_drop_down

Product Features

  • Caution: Kidde (Fyrnetics/Lifesaver/Kidde/Nighthawk/Pyrene) alarms and accessories can only be interconnected with other Kidde alarms and accessories
  • Sealed cover Reduces nuisance alarms. Sealed to protect sensor from contaminants prior to installation.
  • Quick connect Installs quickly with snap-on harness.
  • Test/reset - Tests CO alarm circuit operation and allows you to immediately silence the alarm.
  • Battery pull tab Eliminates battery installation time and keeps battery fresh.

Battery pull tab eliminates battery installation time and keeps battery fresh. Sealed cover reduces nuisance alarms. sealed to protect sensor from contaminants prior to installation. Test/reset - tests co alarm circuit operation and allows you to immediately silence the alarm. Alkaline battery backup for continuous protection in case of power failure. temperature range -40f (4c) to 100f (38c) Caution: Kidde (fyrnetics/lifesaver/Kidde/nighthawk/pyrene) alarms and accessories can only be interconnected with other Kidde alarms and accessories Quick connect installs quickly with snap-on harness.

9
7.3
SCORE
X-Sense 10-Year Battery (Not Hardwired) Combination Smoke and Carbon Monoxide Detector Alarm, Dual Sensor Smoke CO Alarm Complies with UL 217 & UL 2034 Standards, Auto-Check, SC03

X-Sense 10-Year Battery (Not Hardwired) Combination Smoke and Carbon Monoxide Detector Alarm

Dual Sensor Smoke CO Alarm Complies with UL 217 & UL 2034 Standards, Auto-Check, SC03

by X-Sense
What We like

EASY INSTALLATION WITH QUALITY: X-SENSE smoke carbon monoxide alarm combo requires no rewiring; easy to mount on any wall or ceiling without an electrician; all X-SENSE carbon monoxide alarm and smoke alarm are rigorously tested to meet UL 217 and UL 2034 safety standards; comes with a lifetime customer support

more infoarrow_drop_down

Product Features

  • 10-YEAR BATTERY LIFE: This combination smoke alarm and carbon monoxide alarm provides 10 years of continuous power with a built-in lithium battery; provides continuous monitoring of smoke and CO levels, even if there's a power failure; an end-of-life signal will let you know when its time to replace the unit for safety
  • SIMPLE TO USE: The test/silence button of this smoke alarm carbon monoxide alarm enables you to test the alarm weekly, and to easily silence the alarm when false alarms occur; malfunction and low battery warnings allow you to easily know the working status of the alarm; in case of an emergency, an alarm tone of over 85 dB will instantly alert the entire household, even those in sleep
  • ALARM TYPES FOR MORE CONVENIENT: Different alarm patterns of this carbon monoxide alarm and smoke alarm tell you it is either smoke or carbon monoxide is detected without checking the LCD display; smoke alarm: delivers 3 long beeps every 1.5 seconds and the red LED flashes with the alarm sound; CO alarm: delivers 4 quick beeps every 5. 8 seconds and the red LED flashes with the alarm sound
  • HIGH ACCURACY AND SENSITIVITY: X-SENSE carbon monoxide fire alarm is equipped with combination photoelectric smoke and electrochemical CO sensors that work independently of each other; instantly notifies you when dangerous smoke or CO concentration is detected; provides the ultimate protection from 2 deadly threats, all contained in 1 unit

Simple to use: the test/silence button of this smoke alarm carbon monoxide alarm enables you to test the alarm weekly, and to easily silence the alarm when false alarms occur; malfunction and low battery warnings allow you to easily know the working status of the alarm; in case of an emergency, an alarm tone of over 85 db will instantly alert the entire household, even those in sleep Alarm types for more convenient: different alarm patterns of this carbon monoxide alarm and smoke alarm tell you it is either smoke or carbon monoxide is detected without checking the lcd display; smoke alarm: delivers 3 long beeps every 1.5 seconds and the red led flashes with the alarm sound; co alarm: delivers 4 quick beeps every 5. 8 seconds and the red led flashes with the alarm sound 10-year battery life: this combination smoke alarm and carbon monoxide alarm provides 10 years of continuous power with a built-in lithium battery; provides continuous monitoring of smoke and co levels, even if there's a power failure; an end-of-life signal will let you know when its time to replace the unit for safety High accuracy and sensitivity: X-Sense carbon monoxide fire alarm is equipped with combination photoelectric smoke and electrochemical co sensors that work independently of each other; instantly notifies you when dangerous smoke or co concentration is detected; provides the ultimate protection from 2 deadly threats, all contained in 1 unit

10
7.3
SCORE
X-Sense CD07 Carbon Monoxide Detector Alarm, 10-Year Battery (Not Hardwired) CO Alarm Detector with LCD Display, Compliant with UL 2034 Standard, Auto-Check & Silence Button

X-Sense CD07 Carbon Monoxide Detector Alarm

10-Year Battery (Not Hardwired) CO Alarm Detector with LCD Display, Compliant with UL 2034 Standard, Auto-Check & Silence Button

by X-Sense
What We like

10-YEAR BATTERY & PREMIUM MATERIAL: Comes with a 10-year sealed lithium battery for uninterrupted operation; housed in a frame made from premium PC plastic material that is both fire-retardant and highly durable; provides the ultimate protection for you and your familys safety

more infoarrow_drop_down

Product Features

  • LARGE LCD DISPLAY: Clearly displays the real-time CO levels in PPM (parts per million) taken from the surrounding air, with an updated measurement taken every 10 seconds; comes equipped with a peak level memory, showing you the highest CO concentration measured since the last reset
  • EASY INSTALLATION: Attach the mounting bracket onto the surface of a wall or ceiling with the provided screws and mount the alarm into the bracket by pushing them together and twisting the unit clockwise, automatically activating the unit
  • ACCURATE & RESPONSIVE: Built with an advanced electrochemical sensor and intelligent chipset, the CD07 CO detector quickly and accurately detects dangerous carbon monoxide (CO) leaks in the surrounding air; designed to give you the earliest possible warning of CO threat with a loud 85 dB alarm and a rapid flashing LED indicator

Large lcd display: clearly displays the real-time co levels in ppm (parts per million) taken from the surrounding air, with an updated measurement taken every 10 seconds; comes equipped with a peak level memory, showing you the highest co concentration measured since the last reset Easy installation: attach the mounting bracket onto the surface of a wall or ceiling with the provided screws and mount the alarm into the bracket by pushing them together and twisting the unit clockwise, automatically activating the unit Accurate & responsive: built with an advanced electrochemical sensor and intelligent chipset, the cd07 co detector quickly and accurately detects dangerous carbon monoxide (co) leaks in the surrounding air; designed to give you the earliest possible warning of co threat with a loud 85 db alarm and a rapid flashing led indicator

expand_less

I Agree
We use cookies to enhance and personalise your experience with us by collecting information about the pages you visit and actions taken on the site. More details