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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.

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.
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. Features an advanced electrochemical carbon monoxide sensor; Peak Level feature displays the highest concentration of carbon monoxide measured.

When a dangerous concentration of carbon monoxide or explosive gas is detected, it will immediately sound an alarm, allowing you to quickly make a judgment and protect your family getting hurt. High sensitivity dual sensor designthe koabbit 2-in-1 alarm detector contains a catalytic combustion method sensor and an electrochemical carbon monoxide sensor.
Lcd digital displaythis display clearly shows levels of Gas that the unit has detected and stored-- from 0 to 3000 ppm--and it updates every 9 seconds to indicate any sudden changes. Easy installation & qualityeasy to mount on any wall or ceiling without an electrician;The Koabbit detector has been rigorously tested and passed UL2034 safety certification, Please contact us by E-mail, If you have any questions, We will give you a SATISFACTORY SOLUTION.




Features an advanced electrochemical carbon monoxide sensor that accurately detects carbon monoxide levels, no matter where the detector is placed in the room.
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. If the unit still does not alarm, replace it immediately. A loud 85 decibel alarm sounds when CO levels reach dangerous levels.

Dust cover. 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. 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.

Pay attention to maintenance :please check the product regularly to ensure that the detector is working properly, and use a vacuum cleaner to remove dust on the surface of the product once a month.
Alarm standard:50ppm - alarm within 60 to 90 minutes; 100ppm - Alarm within 10 to 40 minutes; ≥200ppm - Alarm within 1 minutes. Warranty and questions:5 year manufacturer warranty. If you have any technical questions, please contact us and we will get back to you as soon as possible. Value package includes:3×carbon monoxide detector, 3×2 screws, 3×2AA batteries, 3 manuals.

Easy to usepush/test button - connect to power 90V-240V or 9V rechargeable batterynot included, The detector will display 3 minutes counting.
Adopts imported sensors, responsive, Stable work, safe and reliable. Voice alarmwhen the concentration of carbon monoxide reaches 100ppm or the concentration of Combustible gas reaches 6%, the LCD screen begins to display the concentration value, and the red LED lights flash and emit a loud voice alarm mode -- 85 decibel alarm.
1. FIRST ALERT
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3-Pack, CO605, FIRST ALERT Plug-In Carbon Monoxide Detector with Battery Backup
#adFIRST ALERT #ad - 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 and also have a battery backup for continuous monitoring of CO levels, even if there's a power failure.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.
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. To ensure complete protection make sure to place 1 on each level of your home and in each bedroom.Brand | FIRST ALERT #ad |
Manufacturer | First Alert / BRK Brands, Inc. #ad |
Height | 9 Inches |
Length | 6.75 Inches |
Width | 6.9 Inches |
Part Number | CO605 |
Model | CO605 |
Warranty | 7 Year Limited |
More information #ad
2. FIRST ALERT
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CO615 , White, FIRST ALERT Dual-Power Plug-In Carbon Monoxide Detector with Battery Backup and Digital Display, 3-Pack
#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. A loud 85-decibel alarm sounds when Carbon Monoxide levels reach dangerous levels.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
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. To ensure complete protection make sure to place one on each level of your home and in each bedroom. Features an advanced electrochemical carbon monoxide sensor; Peak Level feature displays the highest concentration of carbon monoxide measured.
Brand | FIRST ALERT #ad |
Manufacturer | First Alert / BRK Brands, Inc. #ad |
Height | 9 Inches |
Length | 6.75 Inches |
Weight | 0.9 Pounds |
Width | 8.9 Inches |
Part Number | CO615 |
Model | CO615 |
Warranty | 7 Year Limited |
More information #ad
3. KOABBIT
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Combination Natural Gas and Carbon Monoxide Detector Plug in 2-in-1 Co Detector and Combustible Gas Detector,Propane,LPG,Gas Leak Detector for Kitchen/Home,UL2034
#adKOABBIT #ad - Voice alarmwhen the concentration of carbon monoxide reaches 100ppm or the concentration of Combustible gas reaches 6%, the LCD screen begins to display the concentration value, and the red LED lights flash and emit a loud voice alarm mode -- 85 decibel alarm.When a dangerous concentration of carbon monoxide or explosive gas is detected, it will immediately sound an alarm, allowing you to quickly make a judgment and protect your family getting hurt. High sensitivity dual sensor designthe koabbit 2-in-1 alarm detector contains a catalytic combustion method sensor and an electrochemical carbon monoxide sensor.
More information #ad
Easy to usepush/test button - connect to power 90V-240V or 9V rechargeable batterynot included, The detector will display 3 minutes counting. Lcd digital displaythis display clearly shows levels of Gas that the unit has detected and stored-- from 0 to 3000 ppm--and it updates every 9 seconds to indicate any sudden changes. Easy installation & qualityeasy to mount on any wall or ceiling without an electrician;The Koabbit detector has been rigorously tested and passed UL2034 safety certification, Please contact us by E-mail, If you have any questions, We will give you a SATISFACTORY SOLUTION.
Brand | KOABBIT #ad |
Manufacturer | PLT #ad |
Height | 1.6 Inches |
Length | 4.3 Inches |
Weight | 0.44 Pounds |
Width | 2.9 Inches |
Part Number | PLT080 |
Model | QP111 |
More information #ad
4. Kidde
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Kidde Living Area Plug-in Carbon Monoxide Detector Alarm with Sealed Lithium Battery Backup and Digital Display | 900-0280 | KN-COP-DP-10YL | Frustration Free Packaging
#adKidde #ad - Rotating ac blades: unit remains vertical whether electrical socket is in vertical or horizontal orientation. No night chirps: end of life and low battery signals programmed not to occur in dark conditions, helping to prevent needless waking of user.More information #ad
Peak level button. Ten year sealed battery. Digital display. 10 year end of life warning.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
5. Kidde
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Plug In with Battery Backup, Kidde Carbon Monoxide Detector, KN-COP-DP2, CO Detector
#adKidde #ad - Protects during a power failure - 2-AA batteries, included with pack, provide backup service in the event of a power outage. Co detector that alerts with a warning signal against dangerous levels of carbon monoxide in your home.More information #ad
Whole home family protection - place 1 carbon monoxide detector on each level of your home & in your bedroom to protect from poisonous gases. Ul certified, 10-year limited warranty. Easy & quick installation - plugs directly into your home's standard wall outlet, 85 decibel alarm alerts of fire.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
6. Kidde
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Digital Display, Kidde Nighthawk Carbon Monoxide Detector, AC-Plug-In with Battery Backup
#adKidde #ad - Protects during a power failure - carbon monoxide alarm contains a 9V battery backup in case of plug-in failure. 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.More information #ad
Electrochemical sensing technology - CO alarm detects the presence of carbon monoxide gas, 85 decibel alarm & memory storage. Ul certified, 10-year limited warranty. 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
7. FIRST ALERT
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White, Battery Operated , First Alert CO400 Carbon Monoxide Detector
#adFIRST ALERT #ad - If it does not alarm, make sure fresh batteries are correctly installed, and test it again. Keep your family safe with this easy to use, battery operated carbon monoxide alarm; Battery powered alarms provide continuous monitoring of CO levels, even if there's a power failure.Features an advanced electrochemical carbon monoxide sensor that accurately detects carbon monoxide levels, no matter where the detector is placed in the room.
More information #ad
The alarm sequence should last 5-6 seconds. 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. 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. If the unit still does not alarm, replace it immediately. A loud 85 decibel alarm sounds when CO levels reach dangerous levels.
Brand | FIRST ALERT #ad |
Manufacturer | First Alert #ad |
Height | 3 Inches |
Length | 5 Inches |
Weight | 0.45 Pounds |
Width | 1 Inches |
Part Number | CO400 |
Model | CO400 |
Warranty | 5 Year Limited Warranty |
More information #ad
8. FIRST ALERT
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FIRST ALERT BRK SC9120B-3 Hardwired Smoke and Carbon Monoxide CO Detector with Battery Backup. 3-Pack
#adFIRST ALERT #ad - 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 3-pack of hardwired smoke and carbon monoxide alarm; The battery backup means constant monitoring, even if there's a power failure.Dust cover. Faster turnarounds on job sites with the easy-to-install, most-trusted alarms in home safety.
More information #ad
Features an electrochemical carbon monoxide sensing technology as well as an ionization sensor that detects the fine particles of a fast-burning fire. 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. 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.
Brand | FIRST ALERT #ad |
Manufacturer | First Alert #ad |
Height | 2.2 Inches |
Length | 5.6 Inches |
Weight | 0.7 Pounds |
Width | 5.6 Inches |
Part Number | SC9120BFF-3 |
Model | BRK SC9120B-3 |
More information #ad
9. Hembisen
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Carbon Monoxide Detectors Alarm 3 Pack Co Detector Install on Wall,Hembisen Co Gas Detector Battery Powered with Digital Display for Home 2AA Batteries Included
#adHembisen #ad - Low power consumption design:the Detector is equipped with 2AA battery, Quiescent Current: 15 uA. Standby:green light flashes every 15 seconds. Ul2034 certificate:with ul2034 report, it meets the UL2034 standard. Me2 high-precision & sensitivity sensor:High Reliability Electrochemical Sensor, Excellent Repeatability and Stability, Sensitive Response, Rapid Alarm.Pay attention to maintenance :please check the product regularly to ensure that the detector is working properly, and use a vacuum cleaner to remove dust on the surface of the product once a month.
More information #ad
Micro-processing intelligent recognition:When a carbon monoxide gas leak occurs, it can quickly identify the gas and emit an alarm of 85 decibels to avoid dangerous accidents and ensure personal and property safety. Alarm standard:50ppm - alarm within 60 to 90 minutes; 100ppm - Alarm within 10 to 40 minutes; ≥200ppm - Alarm within 1 minutes. Warranty and questions:5 year manufacturer warranty. If you have any technical questions, please contact us and we will get back to you as soon as possible. Value package includes:3×carbon monoxide detector, 3×2 screws, 3×2AA batteries, 3 manuals.
Brand | Hembisen #ad |
Manufacturer | Shenzhen Wei 'an Environmental Protection Electronic Technology Co. LTD #ad |
Height | 4.25 Inches |
Length | 1.75 Inches |
Weight | 0.6 Pounds |
Width | 4.5 Inches |
Part Number | H-212 |
Model | H-212 |
More information #ad
10. KOABBIT
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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 - Easy installation & qualityeasy to mount on any wall or ceiling without an electrician;The Koabbit detector has been rigorously tested and passed UL2034 safety certification, Please contact us by E-mail, If you have any questions, We will give you a SATISFACTORY SOLUTION. Lcd digital displaythis display clearly shows levels of Gas that the unit has detected and stored-- from 0 to 3000 ppm--and it updates every 9 seconds to indicate any sudden changes.Easy to usepush/test button - connect to power 90V-240V or 9V rechargeable batterynot included, The detector will display 3 minutes counting.
More information #ad
Excellent sensitivity of dual sensorsa catalytic combustion method sensor and an electrochemical carbon monoxide sensor. Combination 2 in 1 gas detector alarm by koabbitcarbon monoxide detector and Natural Gas Detector combustible gas, it will immediately sound an alarm, When a dangerous concentration of carbon monoxide or explosive gas is detected, allowing you to quickly make a judgment and protect your family getting hurt. Adopts imported sensors, responsive, Stable work, safe and reliable. Voice alarmwhen the concentration of carbon monoxide reaches 100ppm or the concentration of Combustible gas reaches 6%, the LCD screen begins to display the concentration value, and the red LED lights flash and emit a loud voice alarm mode -- 85 decibel alarm.
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