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Features an advanced electrochemical carbon monoxide sensor that accurately detects carbon monoxide levels, make sure fresh batteries are correctly installed, 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. All first alert cO alarms are rigorously tested to meet UL standards. If the unit still does not alarm, replace it immediately. A loud 85 decibel alarm sounds when CO levels reach dangerous levels. If it does not alarm, and test it again.

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.
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. 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.

Standby:green light flashes every 15 seconds. Value package includes:3×carbon monoxide detector, 3×2AA batteries, 3×2 screws, 3 manuals. Warranty and questions:5 year manufacturer warranty.
Alarm standard:50ppm - alarm within 60 to 90 minutes; 100ppm - Alarm within 10 to 40 minutes; ≥200ppm - Alarm within 1 minutes. 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.

Lcd display and led indicator:by triggering the button, the smoke concentration and carbon monoxide concentration in the environment are displayed at any time, accompanied by the regular flashing of the LED indicator, to actively inform you of the alarm and the safety status of the environment.
Aa batteries that can be removed and replaced:depending on the quality of the battery, the alarm battery needs to be replaced every 1-3 years. The battery life will be shortened by the influence of the environment, especially in the extremely cold environment. You can have complete confidence in our products. The operation is simple and easy to understand. Using smt manufacturing process, it has a dustproof, mothproof and anti-white light interference design.

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. 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.
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. Easy to usepush/test button - connect to power 90V-240V or 9V rechargeable batterynot included, The detector will display 3 minutes counting.


Built-in temperature sensor. Smart choice 3-in-1 premium reliable Detector. It uses 2 AAA batteries. One installation can last for several years. When the battery is at low voltage, it will alarm once every 40 seconds.
Lcd display the concentration of CO in the air can be clearly seen through the attached LCD display. Low power consumption design this detector is battery operated. Premium reliable smart sensors improves detection performance by 2 times 01-05 db/m. 3 in 1 this is smoke detector and carbon monoxide detector and Temperature Heat Detector Alarm.
1. Kidde
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Kidde Carbon Monoxide Detector, KN-COP-DP2, Plug In with Battery Backup, CO Detector
#adKidde #ad - Whole home family protection - place 1 carbon monoxide detector on each level of your home & in your bedroom to protect from poisonous gases. Protects during a power failure - 2-AA batteries, included with pack, provide backup service in the event of a power outage.More information #ad
Ul certified, 10-year limited warranty. Easy & quick installation - plugs directly into your home's standard wall outlet, 85 decibel alarm alerts of fire. Co detector that alerts with a warning signal against dangerous levels of carbon monoxide in your home.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
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AC-Plug-In with Battery Backup, Kidde Nighthawk Carbon Monoxide Detector, Digital Display
#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. Peace of mind - when co detection is normal, a red dot appears in the lower right corner & blinks; includes a test button. 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.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
3. FIRST ALERT
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3-Pack, FIRST ALERT Plug-In Carbon Monoxide Detector with Battery Backup, CO605
#adFIRST ALERT #ad - All first alert co alarms are rigorously tested to meet UL standards. To ensure complete protection make sure to place 1 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 and also have a battery backup for continuous monitoring of CO levels, even if there's a power failure.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.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
4. FIRST ALERT
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White, Battery Operated , First Alert CO400 Carbon Monoxide Detector
#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. 5-year limited warranty; equipped with end of life signal chirp, so you know when it’s time to replace the unit for safety.Features an advanced electrochemical carbon monoxide sensor that accurately detects carbon monoxide levels, make sure fresh batteries are correctly installed, no matter where the detector is placed in the room.
More information #ad
The alarm sequence should last 5-6 seconds. 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. 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. If the unit still does not alarm, replace it immediately. A loud 85 decibel alarm sounds when CO levels reach dangerous levels. If it does not alarm, and test it again.
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
5. 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 - Adopts imported sensors, responsive, Stable work, safe and reliable. Easy to usepush/test button - connect to power 90V-240V or 9V rechargeable batterynot included, The detector will display 3 minutes counting. Excellent sensitivity of dual sensorsa catalytic combustion method sensor and an electrochemical carbon monoxide sensor.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.
More information #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. 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. 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.
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
6. 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. 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.Standby:green light flashes every 15 seconds. Value package includes:3×carbon monoxide detector, 3×2AA batteries, 3×2 screws, 3 manuals. Warranty and questions:5 year manufacturer warranty.
More information #ad
If you have any technical questions, please contact us and we will get back to you as soon as possible. Ul2034 certificate:with ul2034 report, it meets the UL2034 standard. Me2 high-precision & sensitivity sensor:High Reliability Electrochemical Sensor, Sensitive Response, Excellent Repeatability and Stability, Rapid Alarm. Alarm standard:50ppm - alarm within 60 to 90 minutes; 100ppm - Alarm within 10 to 40 minutes; ≥200ppm - Alarm within 1 minutes. 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.
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
7. OKEAH
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OKEAH Smoke and Carbon Monoxide Detector,Replaceable Battery-Operated CO Alarm with LCD Display,YJ-901
#adOKEAH #ad - High quality and reliable performance. High-quality sensor:it integrates a highly sensitive photoelectric sensor and a highly stable electrochemical carbon monoxide sensor at the same time. Whether the smoke or the carbon monoxide concentration in the environment exceeds a certain index, it will send out an alarm to remind you to stay away from danger.Lcd display and led indicator:by triggering the button, the smoke concentration and carbon monoxide concentration in the environment are displayed at any time, accompanied by the regular flashing of the LED indicator, to actively inform you of the alarm and the safety status of the environment.
More information #ad
We offer a 12-month worry-free money back guarantee and a 5-year warranty. If you have any questions or concerns, please feel free to contact us and we will reply to you within 24 hours. The detachable way can ensure that when the battery fails, you only need to replace the battery instead of throwing away the alarm. Aa batteries that can be removed and replaced:depending on the quality of the battery, the alarm battery needs to be replaced every 1-3 years. The battery life will be shortened by the influence of the environment, especially in the extremely cold environment. You can have complete confidence in our products. The operation is simple and easy to understand. Using smt manufacturing process, it has a dustproof, mothproof and anti-white light interference design.
Brand | OKEAH #ad |
Manufacturer | Anqing Rixin Sanitary Materials Co. , Ltd. #ad |
Part Number | YJ-901 |
Model | YJ-901 |
More information #ad
8. KOABBIT
#ad
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 - 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. 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.
More information #ad
High sensitivity dual sensor designthe koabbit 2-in-1 alarm detector contains a catalytic combustion method sensor and an electrochemical carbon monoxide sensor. 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. Easy to usepush/test button - connect to power 90V-240V or 9V rechargeable batterynot included, The detector will display 3 minutes counting.
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
9. Kidde
#ad
Pack of 2, AC-Plug-in with Battery Backup, Digital Display, Kidde Nighthawk Carbon Monoxide Detector
#adKidde #ad - Ul certified, 10-year limited warranty. 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. 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 | 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
10. ZABERT
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Smoke Heat and Carbon Monoxide Detector Alarm with LCD Display UL 217 & UL 2034 Standards
#adZABERT #ad - Suitable for scenes home kitchens, bus stations, sports halls, corporate offices, parking lots, subways, shopping malls, catering companies, etc. Buy more save more! Please order with FULL confidence. When the temperature reaches 55℃, it will alarm immediately.Built-in temperature sensor. Smart choice 3-in-1 premium reliable Detector. It uses 2 AAA batteries. One installation can last for several years. When the battery is at low voltage, it will alarm once every 40 seconds.
More information #ad
More all-round protection than normal detectors, Save more time on installation and maintenance, Save more money. 85 db high decibel the loud alarm sound ensures that you can hear the alarm even in deep sleep. Lcd display the concentration of CO in the air can be clearly seen through the attached LCD display. Low power consumption design this detector is battery operated. Premium reliable smart sensors improves detection performance by 2 times 01-05 db/m. 3 in 1 this is smoke detector and carbon monoxide detector and Temperature Heat Detector Alarm.
Brand | ZABERT #ad |
Manufacturer | ShenZhen L&L Technology Co., Limited #ad |
More information #ad