As an Amazon Associate I earn from qualifying purchases.
Kidde is the #1 most installed fire safety brand in North America* - and a trusted leader in fire safety for more than 100 years. Easy & quick installation - plugs into any standard AC wall outlet.


Led digital display - real-time monitoring and display of readings, so you can quickly understand the environmental conditions. Easy to use - plug and play, saving installation time.

Low battery signal mute, quiets low battery signal for up to 8 hours. To ensure complete protection make sure to place one on each level of your home and in each bedroom.
Simple to use, with a single test/silence button; A loud 85 decibel alarm sounds when carbon monoxide levels reach dangerous levels. Item length is 3. 4 inches, item width is 1. 38 inches and item height is 5 inches. All first alert co alarms are rigorously tested to meet UL standards.

Keep your family safe from carbon monoxide in multiple rooms with this convenient plug-in carbon monoxide alarm 3-pack; the alarms work with any standard outlet.

A loud 85-decibel alarm sounds when CO levels reach dangerous levels. 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.


Alarm standard: the alert time depend the level of carbon monoxide concentration. Power supply: dc3v 2aa size batteries. Not included sensor type:electrochemical Gas Detection Type:Carbon Monoxide Material: ABS.
Light and sound alarm warning: when a dangerous level of carbon monoxide is detected the red LED will flash and the alarm pattern will sound 85-decibel alarm to protect your family's life and property safety from CO detector.

2-in-1 combustible gas detector and carbon monoxide alarmthis 2-in-1 gas detector contains a catalytic combustion sensor and an electrochemical sensor for sensitive sensing and high accuracy, the gas detector will display the gas concentration value and sound an alarm, making it one of the most important members of your protection home!!! Lcd display & 85 high volume alarmwhen the combustible gas or carbon monoxide gas reaches a certain level, allowing you to quickly determine and make the right choice.
Power supply ac90-240v or 9v rechargeable battery; in the event of a power outage, the 9V rechargeable backup battery will automatically kick in to continuously protect your home. Safety certificationUL2034 and UL1484.

1. Kidde
#ad
AC Plug-In with Battery Backup, Kidde Carbon Monoxide Detector, CO Alarm with Replacement Alert
#adKidde #ad - Ul certified, 10-year limited warranty. Co detector alerts with a loud 85dB warning signal indicating dangerous levels of carbon monoxide in your home.Kidde is the #1 most installed fire safety brand in North America* - and a trusted leader in fire safety for more than 100 years. Easy & quick installation - plugs into any standard AC wall outlet.
More information #ad
Plug-in that still works during a power failure - 2-AA batteries included provide backup for your CO alarm in the event of a power outage. Purchase multiple alarms for whole-home detection - place 1 carbon monoxide detector on each level of your home & outside each sleeping area to help protect against poisonous CO gas.Brand | Kidde #ad |
Manufacturer | Kidde #ad |
Height | 4.5 Inches |
Length | 2.75 Inches |
Weight | 0.04 Pounds |
Width | 1.5 Inches |
Part Number | 900-0263 |
Model | KN-COB-DP2 |
More information #ad
2. Kidde
#ad
AC-Plug-In with Battery Backup, Kidde Nighthawk Carbon Monoxide Detector, Digital Display, Pack of 2
#adKidde #ad - Includes 2 kidde Nighthawk Carbon Monoxide Detectors. Plug-in carbon monoxide detector can be installed in any outlet of your home; use the attached extension cord to place on a table or shelf. Digital display shows the level of carbon monoxide the CO alarm is sensing, updated every 15 seconds.More information #ad
Ul certified, 10-year limited warranty. Still works during a power failure - carbon monoxide alarm contains a 9V battery backup in case of plug-in failure. When co detection is normal, a red dot appears in the lower right corner & blinks; includes a test button that also resets the CO detector.Brand | Kidde #ad |
Manufacturer | Kidde #ad |
Height | 6.06 Inches |
Length | 2 Inches |
Weight | 1 Pounds |
Width | 1.75 Inches |
Part Number | 900-0076 |
Model | KN-COPP-3 |
Warranty | 10 year limited manufacturer |
More information #ad
3. KOABBIT
#ad
Plug-in Carbon Monoxide Detectors,Koabbit CO Level Monitoring Alarm with Light & Digital Display for Home/Kitchen/Bedroom,Accurate & Easy to Install,UL20342 Pack
#adKOABBIT #ad - New upgraded carbon monoxide detector - Imported electrochemical sensors, more responsive, reliable readings, to avoid false readings and false alarms. Protect your home: carbon monoxide detectors are suitable for bedroom, apartment, kitchen, restaurant, bathroom, living room, garage, hotel, office, etc.Led digital display - real-time monitoring and display of readings, so you can quickly understand the environmental conditions. Easy to use - plug and play, saving installation time.
More information #ad
Security certification:UL2034. Warranty & return service guarantee: 2 Years Warranty, please contact us, if you have any technical problems, we will solve your problem as soon as possible.85 decibel alarm - when the gas concentration reaches a certain level, the carbon monoxide alarm immediately emits an audible alarm >85 dB, allowing you to react quickly and protect your home.Brand | KOABBIT #ad |
Manufacturer | Shenzhen Wei'an Environmental Protection Electronic Technology Co., Ltd. #ad |
Weight | 0.28 Pounds |
Part Number | WA996 |
Model | WA996 |
More information #ad
4. FIRST ALERT
#ad
First Alert CO605 Plug-In Carbon Monoxide Detector with Battery Backup , White
#adFIRST ALERT #ad - 7 year limited warranty; equipped with end of life signal chirp, so you know when it’s time to replace the unit for safety. Keep your family safe with this easy to use plug in carbon monoxide alarm; It works with any standard outlet and also has a battery backup for continuous monitoring of Carbon Monoxide levels, even if there's a power failure.Low battery signal mute, quiets low battery signal for up to 8 hours. To ensure complete protection make sure to place one on each level of your home and in each bedroom.
More information #ad
Features an advanced electrochemical carbon monoxide sensor that accurately detects carbon monoxide levels, no matter where the detector is placed in the room. 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; A loud 85 decibel alarm sounds when carbon monoxide levels reach dangerous levels. Item length is 3. 4 inches, item width is 1. 38 inches and item height is 5 inches. All first alert co alarms are rigorously tested to meet UL standards.
Brand | FIRST ALERT #ad |
Manufacturer | First Alert #ad |
Height | 5 Inches |
Length | 3.4 Inches |
Weight | 0.26 Pounds |
Width | 1.38 Inches |
Part Number | FATCO605 |
Model | CO605 |
More information #ad
5. FIRST ALERT
#ad
White, CO600 , FIRST ALERT Plug-In Carbon Monoxide Detector, 3-Pack
#adFIRST ALERT #ad - All first alert co alarms are rigorously tested to meet UL standards. To ensure complete protection make sure to place one on each level of your home and in each bedroom.Keep your family safe from carbon monoxide in multiple rooms with this convenient plug-in carbon monoxide alarm 3-pack; the alarms work with any standard outlet.
More information #ad
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 Carbon Monoxide levels reach dangerous levels. Never use water, cleaners, or solvents, sincethey may damage the unit.Brand | FIRST ALERT #ad |
Manufacturer | First Alert / BRK Brands, Inc. #ad |
Height | 9 Inches |
Length | 6.75 Inches |
Weight | 0.76 Pounds |
Width | 6.9 Inches |
Part Number | CO600-3 |
Model | CO600 |
Warranty | 7 Year Limited |
More information #ad
6. FIRST ALERT
#ad
FIRST ALERT Carbon Monoxide Detector, Battery Operated, 2-Pack, CO400, No Outlet Required
#adFIRST ALERT #ad - 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. 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 information #ad
5-year limited warranty; equipped with end-of-life signal chirp, so you know when it’s time to replace the unit for safety. All first alert cO alarms are rigorously tested to meet UL standards. To ensure complete protection make sure to place one on each level of your home and in each bedroom.Brand | FIRST ALERT #ad |
Manufacturer | First Alert #ad |
Height | 4 Inches |
Length | 9 Inches |
Weight | 0.8 Pounds |
Width | 6 Inches |
Part Number | co400cn2 |
Model | CO400 |
Warranty | 5-Year |
More information #ad
7. Kidde
#ad
AC-Plug-In with Battery Backup, Kidde Nighthawk Carbon Monoxide Detector, Digital Display
#adKidde #ad - Easy installation - plug can be installed in any outlet of your home; or use the attached extension cord to place on a table or shelf. Protects during a power failure - carbon monoxide alarm contains a 9V battery backup in case of plug-in failure.More information #ad
Electrochemical sensing technology - CO alarm detects the presence of carbon monoxide gas, 85 decibel alarm & memory storage. Peace of mind - when co detection is normal, a red dot appears in the lower right corner & blinks; includes a test button. Ul certified, 10-year limited warranty.Brand | Kidde #ad |
Manufacturer | Kidde #ad |
Height | 1.75 inches |
Length | 6.06 inches |
Weight | 3 Pounds |
Width | 3.75 inches |
Part Number | 900-0076 |
Model | KN-COPP-3 |
Warranty | 10 Year Limited |
More information #ad
8. Ledronco
#ad
Carbon Monoxide Detector,CO Alarm Detector with Digital Display and Sound Alarm for Home 2pcs
#adLedronco #ad - High quality co alarm, carbon monoxide detector equipped with high accuracy and reliable long-life electrochemical CO sensor to detect CO gas leak quickly. 50ppm, alert within 90 minutes; 100ppm, alert within 40 minutes; 300ppm, alert within 3 minutes.Alarm standard: the alert time depend the level of carbon monoxide concentration. Power supply: dc3v 2aa size batteries. Not included sensor type:electrochemical Gas Detection Type:Carbon Monoxide Material: ABS.
More information #ad
Easy installation and widely used:co detector coming with mounting accessories, kitchen, Homes for bedroom, just drill holes in appropriate positions which you need Used for Banks, Houses, living room and any other area with a risk of fire danger can be installed a CO alarm. Light and sound alarm warning: when a dangerous level of carbon monoxide is detected the red LED will flash and the alarm pattern will sound 85-decibel alarm to protect your family's life and property safety from CO detector.
Brand | Ledronco #ad |
Manufacturer | ShenZhen L&L Technology Co.Limited #ad |
Height | 1.38 Inches |
Length | 3.94 Inches |
Weight | 0.25 Pounds |
Width | 3.94 Inches |
Part Number | C20 |
Model | C20A-2 |
More information #ad
9. KOABBIT
#ad
Plug-in Carbon Monoxide Detector and Natural Gas Detector Alarm by Koabbit,Combination 2-in-1 Co Detector and Combustible Gas Detector,Propane,LPG,Gas Leak Detector for Kitchen/Home,UL2034 2 Pack
#adKOABBIT #ad - Combustible gas detection rangelpGMethane, coal gas, artificial gas, natural gas, gas fuel, liquefied petroleum gas, liquefied natural gas etc. Warranty and return service1 year warranty, if there is any technical problem with the product, please contact us and we will deal with it as soon as possible.2-in-1 combustible gas detector and carbon monoxide alarmthis 2-in-1 gas detector contains a catalytic combustion sensor and an electrochemical sensor for sensitive sensing and high accuracy, the gas detector will display the gas concentration value and sound an alarm, making it one of the most important members of your protection home!!! Lcd display & 85 high volume alarmwhen the combustible gas or carbon monoxide gas reaches a certain level, allowing you to quickly determine and make the right choice.
More information #ad
Power supply ac90-240v or 9v rechargeable battery; in the event of a power outage, the 9V rechargeable backup battery will automatically kick in to continuously protect your home. Safety certificationUL2034 and UL1484.
Brand | KOABBIT #ad |
Manufacturer | Shenzhen Jikaida Technology Co., Ltd. #ad |
Height | 1.6 Inches |
Length | 4.3 Inches |
Weight | 0.33 Pounds |
Width | 2.9 Inches |
Part Number | QP111 |
Model | QP111 |
More information #ad
10. Kidde
#ad
Alarm Memory, Test/Reset Button, 3 LEDs, Pack of 2, Kidde Carbon Monoxide Detector with Long-Life Lithium Battery
#adKidde #ad - Small, the kidde co alarm has three led lights: Green for normal operation, effective, and easy to use, red for alarm, Amber for error or low battery. Easy installation with no battery fuss - carbon monoxide alarm will automatically activate when attached to the mounting bracket.More information #ad
End-of-life chirp lets you know when it's time to replace your CO detector. Ul certified, 10-year limited warranty. Package contains two carbon monoxide alarms. Provides detection during a power failure - CO detector operates on a long-life, sealed lithium battery.Brand | Kidde #ad |
Manufacturer | Kidde #ad |
Height | 2.7 Inches |
Length | 4.75 Inches |
Weight | 0.31 Pounds |
Width | 1.5 Inches |
Part Number | C3010 |
Model | C3010 |
Warranty | 10 year limited manufacturer |
More information #ad