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Built-in 10-year lithium battery offers continuous protection for the life of the carbon monoxide detector. 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.
A loud 85-decibel alarm sounds when CO levels reach dangerous levels. 10-year limited warranty; equipped with end-of-life signal chirp, so you know when it’s time to replace the unit for safety. Easy-to-read backlit digital display shows temperature and CO concentration; Peak Level feature displays the highest concentration of carbon monoxide measured.

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. If the unit still does not alarm, no matter where the detector is placed in the room.
A loud 85 decibel alarm sounds when CO levels reach dangerous levels. 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 advanced electrochemical carbon monoxide sensor that accurately detects carbon monoxide levels, make sure fresh batteries are correctly installed, and test it again.

Simple to use, with a single test/silence button; A loud 85 decibel alarm sounds when carbon monoxide levels reach dangerous levels.
38 inches and item height is 5 inches. 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. To ensure complete protection make sure to place one on each level of your home and in each bedroom.

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.
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. All first alert cO alarms are rigorously tested to meet UL standards.



Features an advanced electrochemical carbon monoxide sensor; Peak Level feature displays the highest concentration of carbon monoxide measured.
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 digital display, battery operated carbon monoxide alarm; battery powered alarms provide continuous monitoring of CO levels, even if there's a power failure.



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. Features an electrochemical carbon monoxide sensing technology as well as an ionization sensor for smoke detection.
1. FIRST ALERT
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First Alert CO710 Carbon Monoxide Detector with 10-Year Battery and Digital Temperature Display
#adFIRST ALERT #ad - 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.Built-in 10-year lithium battery offers continuous protection for the life of the carbon monoxide detector. 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 information #ad
A loud 85-decibel alarm sounds when CO levels reach dangerous levels. 10-year limited warranty; equipped with end-of-life signal chirp, so you know when it’s time to replace the unit for safety. Easy-to-read backlit digital display shows temperature and CO concentration; Peak Level feature displays the highest concentration of carbon monoxide measured.
Brand | FIRST ALERT #ad |
Manufacturer | First Alert / BRK Brands, Inc. #ad |
Height | 2.63 Inches |
Length | 0.94 Inches |
Weight | 0.5 Pounds |
Width | 4.75 Inches |
Part Number | CO710 |
Model | CO710 |
More information #ad
2. FIRST ALERT
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White, First Alert CO400 Carbon Monoxide Detector, Battery Operated
#adFIRST ALERT #ad - 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 it does not alarm, replace it immediately.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. If the unit still does not alarm, no matter where the detector is placed in the room.
More information #ad
The alarm sequence should last 5-6 seconds. 5-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 CO levels reach dangerous levels. 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 advanced electrochemical carbon monoxide sensor that accurately detects carbon monoxide levels, make sure fresh batteries are correctly installed, and test it again.
Brand | FIRST ALERT #ad |
Manufacturer | First Alert #ad |
Height | 3 Inches |
Length | 5 Inches |
Weight | 0.7 Pounds |
Width | 1 Inches |
Part Number | CO400 |
Model | CO400FF |
Warranty | 5 Year Limited Warranty |
More information #ad
3. FIRST ALERT
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First Alert CO605 Plug-In Carbon Monoxide Detector with Battery Backup , White
#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. Low battery signal mute, quiets low battery signal for up to 8 hours. 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.
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. 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 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. 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
4. FIRST ALERT
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First Alert CO615 Dual-Power Plug-In Carbon Monoxide Detector with Battery Backup and Digital Display , White
#adFIRST ALERT #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.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.
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. 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. 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 | 0.6 Pounds |
Width | 1.7 Inches |
Part Number | FATCO615 |
Model | CO615 |
Warranty | 7-year Limited Warranty |
More information #ad
5. Kidde
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Kidde Carbon Monoxide Detector with Digital Display & LED Lights, CO Alarm
#adKidde #ad - Protects during a power failure - CO detector operates on 3-AA batteries. Co detector with alert modes & 2 LED lights that pulse for power & CO detection. Ul certified, 10-year limited warranty.More information #ad
Electrochemical sensing technology - CO alarm detects the presence of carbon monoxide gas, 85 decibel alarm. Easy to read digital display - allows for easy viewing of carbon monoxide levels.Brand | Kidde #ad |
Manufacturer | Kidde Safety #ad |
Height | 2.75 Inches |
Length | 4.5 Inches |
Weight | 0.01 Pounds |
Width | 1.5 Inches |
Part Number | 21008873 |
Model | KN-COPP-B-LPM |
Warranty | 10 Year Limited |
More information #ad
6. Kidde
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CO Detector, KN-COP-DP2, Plug In with Battery Backup, Kidde Carbon Monoxide 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. Ul certified, 10-year limited warranty. Co detector that alerts with a warning signal against dangerous levels of carbon monoxide in your home.More information #ad
Easy & quick installation - plugs directly into your home's standard wall outlet, 85 decibel alarm alerts of fire. Protects during a power failure - 2-AA batteries, included with pack, provide backup service 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
7. FIRST ALERT
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Battery Operated, First Alert Carbon Monoxide Detector Alarm|No Outlet Required with Digital Display and Peak Memory, CO410
#adFIRST ALERT #ad - A loud 85 decibel alarm sounds when Carbon Monoxide levels reach dangerous levels. 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.Features an advanced electrochemical carbon monoxide sensor; Peak Level feature displays the highest concentration of carbon monoxide measured.
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. Keep your family safe with this easy to use digital display, battery operated carbon monoxide alarm; battery powered alarms provide continuous monitoring of CO levels, even if there's a power failure.
Brand | FIRST ALERT #ad |
Manufacturer | First Alert #ad |
Height | 8.5 Inches |
Length | 2.25 Inches |
Weight | 0.58 Pounds |
Width | 7 Inches |
Part Number | CO410 |
Model | CO410 |
More information #ad
8. Kidde
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Combination Smoke & CO Alarm, Voice Alert, Kidde Smoke & Carbon Monoxide Detector, Battery Powered
#adKidde #ad - Test-hush feature - silences the unit for approximately 8 minutes; tamper-resistant technology deters removal of the unit from the wall or ceiling. Ul certified, 10-year limited warranty. Ionization sensor technology - smoke detector detects invisible fire particles, 85 decibel alarm alerts of fire at 10 feet.More information #ad
Fire & co detector in 1 unit with alert modes, led lights, & voice alarm, "Fire Fire", that states, "Warning Carbon Monoxide", or "Low Battery". Protects during a power failure - combo smoke and CO alarm operates on 2-AA batteries.Brand | Kidde #ad |
Manufacturer | Kidde Safety #ad |
Height | 5.6 Inches |
Length | 1.8 Inches |
Weight | 0.8 Pounds |
Width | 5.6 Inches |
Part Number | 21026043 |
Model | 21026043 |
Warranty | 5-year limited warranty |
More information #ad
9. Kidde
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Kidde Carbon Monoxide Detector, Battery Powered with LED Lights, CO Alarm
#adKidde #ad - Ul certified, 10-year limited warranty. Protects during a power failure - operates on 2-AA batteries, included with pack. Sophisticated electronic components to protect you & your family from the dangers of carbon monoxide, 85 decibel alarm alerts of fire.More information #ad
Co detector with alert modes & LED lights that pulse for power, CO detection, & low battery. Whole home family protection - place 1 carbon monoxide detector on each level of your home & in your bedroom to protect from poisonous gases.Brand | Kidde #ad |
Manufacturer | Kidde #ad |
Height | 11 Inches |
Length | 3 Inches |
Weight | 0.5 Pounds |
Width | 7 Inches |
Part Number | KN-COB-LP2 9CO5-LP2 |
Model | KN-COB-LP2 9CO5-LP2 |
Warranty | 10-Year warranty: Consult User Guide for more information. |
More information #ad
10. FIRST ALERT
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White, FIRST ALERT BRK SC9120B Hardwired Smoke and Carbon Monoxide CO Detector with Battery Backup, 1 pack
#adFIRST ALERT #ad - Rigorously tested to meet UL standards. 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.Faster turnarounds on job sites with the easy-to-install, most-trusted alarms in home safety.
More information #ad
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. 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. Features an electrochemical carbon monoxide sensing technology as well as an ionization sensor for smoke detection.
Brand | FIRST ALERT #ad |
Manufacturer | First Alert #ad |
Height | 1.9 Inches |
Length | 5.6 Inches |
Weight | 0.25 Pounds |
Width | 5.6 Inches |
Part Number | SC9120B |
Model | SC9120B |
Warranty | 7 Year Limited |
More information #ad