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Kidde is the #1 most installed fire safety brand in North America* - and a trusted leader in fire safety for more than 100 years. 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.

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. 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.

Keep your family safe from carbon monoxide in multiple rooms with this convenient plug-in carbon monoxide alarm 3-pack; The backlit digital-display alarms work with any standard outlet and also have a battery backup for continuous monitoring of Carbon Monoxide levels, even if there's a power failure.
7-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. 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.



Easy to install co and explosive gas alarm with three convenient mounting options including AC wall outlet, plugin six foot power cord, or table top. Loud pulsing alarm that will sound to alert you to a potential problem.
Digital display and peak level button displays the peak CO level recorded by the alarm since it was last reset. Carbon monoxide co alarms four quick beeps, followed by five seconds of silence, followed by four quick beeps. Displays CO concentration.




Product 2: a loud 85 decibel alarm sounds when Carbon Monoxide levels reach dangerous levels. Product 2: features an advanced electrochemical carbon monoxide sensor; Peak level feature displays the highest concentration of carbon monoxide measured.
Product 1: easy-to-read backlit digital display shows temperature and CO concentration; Peak Level feature displays the highest concentration of carbon monoxide measured. Product 1: built-in 10-year lithium battery offers continuous protection for the life of the carbon monoxide detector. Product 2: to ensure complete protection make sure to place one on each level of your home and in each bedroom.
1. Kidde
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AC Plug-In with Battery Backup, CO Alarm with Replacement Alert, Kidde Carbon Monoxide Detector
#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. 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.
More information #ad
Easy & quick installation - plugs into any standard AC wall outlet. 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.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. FIRST ALERT
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First Alert CO605 Plug-In Carbon Monoxide Detector with Battery Backup , White
#adFIRST ALERT #ad - Item length is 3. 4 inches, item width is 1. 38 inches and item height is 5 inches. Low battery signal mute, quiets low battery signal for up to 8 hours. All first alert co alarms are rigorously tested to meet UL standards. 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.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.
More information #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. Simple to use, with a single test/silence button; A loud 85 decibel alarm sounds when carbon monoxide levels reach dangerous levels. 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.
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
3. FIRST ALERT
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FIRST ALERT Dual-Power Plug-In Carbon Monoxide Detector with Battery Backup and Digital Display, CO615 , 3-Pack, White
#adFIRST ALERT #ad - A loud 85-decibel alarm sounds when Carbon Monoxide levels reach dangerous levels. Features an advanced electrochemical carbon monoxide sensor; Peak Level feature displays the highest concentration of carbon monoxide measured.Keep your family safe from carbon monoxide in multiple rooms with this convenient plug-in carbon monoxide alarm 3-pack; The backlit digital-display alarms work with any standard outlet and also have a battery backup for continuous monitoring of Carbon Monoxide levels, even if there's a power failure.
More information #ad
To ensure complete protection make sure to place one on each level of your home and in each bedroom. 7-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. 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.
Brand | FIRST ALERT #ad |
Manufacturer | First Alert / BRK Brands, Inc. #ad |
Height | 9 Inches |
Length | 6.75 Inches |
Weight | 0.01 Pounds |
Width | 8.9 Inches |
Part Number | CO615 |
Model | CO615 |
Warranty | 7 Year Limited |
More information #ad
4. Kidde
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Pack of 2, AC-Plug-In with Battery Backup, Digital Display, Kidde Nighthawk Carbon Monoxide Detector
#adKidde #ad - 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. Still works during a power failure - carbon monoxide alarm contains a 9V battery backup in case of plug-in failure.More information #ad
Ul certified, 10-year limited warranty. Includes 2 kidde Nighthawk Carbon Monoxide Detectors. Digital display shows the level of carbon monoxide the CO alarm is sensing, updated every 15 seconds. 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
5. Kidde
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Digital Display, Kidde Nighthawk Carbon Monoxide Detector, AC-Plug-In with Battery Backup
#adKidde #ad - Electrochemical sensing technology - CO alarm detects the presence of carbon monoxide gas, 85 decibel alarm & memory storage. Protects during a power failure - carbon monoxide alarm contains a 9V battery backup in case of plug-in failure.More information #ad
Ul certified, 10-year limited warranty. 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. Peace of mind - when co detection is normal, a red dot appears in the lower right corner & blinks; includes a test button.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
6. Kidde
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Kidde Nighthawk Carbon Monoxide Detector & Propane, Digital Display , Natural, & Explosive Gas Detector, AC-Plug-In with Battery Backup, White
#adKidde #ad - Gas alarms one second of alarm on, one second of alarm off, repeating with “GAS” shown in display. Three convenient mounting options. Ul certified, 5-year Limited Warranty. Battery backup 9 volt battery included.Easy to install co and explosive gas alarm with three convenient mounting options including AC wall outlet, plugin six foot power cord, or table top. Loud pulsing alarm that will sound to alert you to a potential problem.
More information #ad
Two alarms in one detects carbon monoxide and explosive gas. Low battery warning feature indicates when the battery needs replacement. Kidde’s 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. Carbon monoxide co alarms four quick beeps, followed by five seconds of silence, followed by four quick beeps. Displays CO concentration.
Brand | Kidde #ad |
Manufacturer | Kidde #ad |
Height | 11 Inches |
Length | 2 Inches |
Weight | 1 Pounds |
Width | 8 Inches |
Part Number | KI-21006677 |
Model | KN-COEG-3 |
Warranty | 5 Year Limited |
More information #ad
7. Kidde
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AC-Plug-In with Battery Backup & Digital Display, Kidde Carbon Monoxide Detector
#adKidde #ad - Easy to install - co detector is powered by plugging into an outlet with no hardwiring required. Ul certified, 10-year limited warranty. Digital display shows accurate levels of CO that the carbon monoxide detector is sensing and provides clear daytime visibility that automatically dims in dark conditions.More information #ad
Plug-in co alarm with battery backup provides detection during a power outage and long-life lithium battery eliminates the need for battery replacements. Test/reset button allows you to test the alarm or reset it when needed.Brand | Kidde #ad |
Manufacturer | Kidde Safety #ad |
Height | 5.6 Inches |
Length | 1.5 Inches |
Weight | 0.75 Pounds |
Width | 3 Inches |
Part Number | 900-0280 |
Model | KN-COP-DP-10YL |
Warranty | 10 year limited |
More information #ad
8. Kidde
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Night Light & Escape Light, Kidde Carbon Monoxide Detector, Digital Display, AC-Plug-In with Lithium Battery Backup
#adKidde #ad - Easy installation - simply plug the CO detector into a 120-volt, 60Hz outlet in your home; the plug rotates for flexibility of placement. No battery replacement needed - Kidde carbon monoxide alarm contains a sealed lithium battery for detection during power outages.More information #ad
The co alarm features an led that can be used as a night light during normal operation and as a bright escape light when in alarm mode. Digital display shows the level of CO the unit is sensing and provides clear daytime visibility that automatically dims in dark conditions. Ul certified, 10-year limited warranty.Brand | Kidde #ad |
Manufacturer | Kidde Safety #ad |
Height | 11.5 Inches |
Length | 8 Inches |
Weight | 0.62 Pounds |
Width | 3 Inches |
Part Number | 21026365 |
Model | KN-COP-DP-10YH |
More information #ad
9. Kidde
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Digital Display, Voice Alert, Kidde Plug-in Carbon Monoxide Detector Alarm with Sealed Lithium Battery Backup
#adKidde #ad - Ul certified, 10-year limited warranty. End-of-life alert reminds user to replace CO alarm after 10 years of operation, as required by UL. Voice alarm announces "warning! carbon Monoxide!" when CO levels exceed 100 PPM and when in alarm condition.More information #ad
Digital display on the co alarm shows the level of carbon monoxide the unit is sensing; automatically dims in low light conditions. Co detector plugs into any standard outlet; long-life sealed battery provides detection during power outages and does not need replacement during life of the alarm.Brand | Kidde #ad |
Manufacturer | Kidde Safety #ad |
Height | 5.6 Inches |
Length | 1.5 Inches |
Width | 3 Inches |
Part Number | 900-0282 |
Model | KN-COP-DP-10YB |
Warranty | 10 year limited |
More information #ad
10. FIRST ALERT
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First Alert CO710 Carbon Monoxide Detector with 10-Year Battery and Digital Temperature Display & CO615 Dual-Power Plug-in Carbon Monoxide Detector with Battery Backup and Digital Display , White
#adFIRST ALERT #ad - Product 1: a loud 85-decibel alarm sounds when CO levels reach dangerous levels. Product 1: 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.Product 2: a loud 85 decibel alarm sounds when Carbon Monoxide levels reach dangerous levels. Product 2: features an advanced electrochemical carbon monoxide sensor; Peak level feature displays the highest concentration of carbon monoxide measured.
More information #ad
Product 2: keep your family safe with this digital display, 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. Product 1: easy-to-read backlit digital display shows temperature and CO concentration; Peak Level feature displays the highest concentration of carbon monoxide measured. Product 1: built-in 10-year lithium battery offers continuous protection for the life of the carbon monoxide detector. Product 2: to ensure complete protection make sure to place one on each level of your home and in each bedroom.
Brand | FIRST ALERT #ad |
More information #ad