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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.
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. 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.

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. Faster turnarounds on job sites with the easy-to-install, most-trusted alarms in home safety. Features an electrochemical carbon monoxide sensing technology as well as an ionization sensor for smoke detection. Rigorously tested to meet UL standards.

Complies with all current 10 year legislation in U. Rigorously tested to meet UL standards. 10-year limited ; equipped with end-of-life signal chirp, so you know when it’s time to replace the unit for your safety the date printed on the item is the manufacturing date, not the expiration date.
A loud 85 decibel alarm sounds when Carbon Monoxide, and Smoke levels begin to rise. States/cities where required. Faster turnarounds on job sites with the easy-to-install, most-trusted alarms in home safety. 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.
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. 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 talking battery operated smoke and carbon monoxide alarm; it's equipped with voice and location, so you are alerted of the danger and where it originates from across your house.
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. It can ship within the US except New York. Simple to use, with a single test/silence button, and EZ access battery drawer allows you to change batteries without removing alarm from the ceiling.

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.
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. 7 year limited warranty; equipped with end of life signal chirp, so you know when it’s time to replace the unit for safety. To ensure complete protection make sure to place one on each level of your home and in each bedroom.

Features an electrochemical carbon monoxide sensing technology as well as a photoelectric sensor that detects the larger particles of a smoldering fire. Battery operated unit installs quickly and easily without an electrician. 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. It can ship within the US except New York. Emits T3 Pattern. 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 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. 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.

10-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. Built-in 10-year lithium battery offers continuous protection for the life of the carbon monoxide detector. 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.
1. FIRST ALERT
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Battery Operated , White, First Alert CO400 Carbon Monoxide Detector
#adFIRST ALERT #ad - A loud 85 decibel alarm sounds when CO levels reach dangerous levels. 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.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. If it does not alarm, and test it again. If the unit still does not alarm, replace it immediately. 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 easy to use, battery operated carbon monoxide alarm; Battery powered alarms provide continuous monitoring of CO 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.
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
2. FIRST ALERT
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FIRST ALERT BRK SC9120B Hardwired Smoke and Carbon Monoxide CO Detector with Battery Backup, White, 1 pack
#adFIRST ALERT #ad - 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. 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.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.
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. Can connect to other compatible BRK or First Alert detectors, to ensure all alarms will sound when threat is detected. Faster turnarounds on job sites with the easy-to-install, most-trusted alarms in home safety. Features an electrochemical carbon monoxide sensing technology as well as an ionization sensor for smoke detection. Rigorously tested to meet UL standards.
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
3. First Alert
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First Alert BRK PRC710 Smoke and Carbon Monoxide Alarm with Built-In 10-Year Battery , White
#adFirst Alert #ad - Features a sleek, low profile design to blend more fully into the wall and out of sight. Features electrochemical carbon Monoxide sensing technology and photoelectric smoke sensor optimized to detect larger smoke particles produced by smoldering fires; helps minimize the number of false alarms.Complies with all current 10 year legislation in U. Rigorously tested to meet UL standards. 10-year limited ; equipped with end-of-life signal chirp, so you know when it’s time to replace the unit for your safety the date printed on the item is the manufacturing date, not the expiration date.
More information #ad
S. A loud 85 decibel alarm sounds when Carbon Monoxide, and Smoke levels begin to rise. States/cities where required. Faster turnarounds on job sites with the easy-to-install, most-trusted alarms in home safety. 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 #ad |
Height | 0.96 Inches |
Length | 4.92 Inches |
Weight | 1.4 Pounds |
Width | 4.92 Inches |
Part Number | PRC710 |
Model | PRC710 |
More information #ad
4. FIRST ALERT
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CO410, Battery Operated, First Alert Carbon Monoxide Detector Alarm|No Outlet Required with Digital Display and Peak Memory
#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. 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.
More information #ad
To ensure complete protection make sure to place one on each level of your home and in each bedroom. A loud 85 decibel alarm sounds when Carbon Monoxide levels reach dangerous levels. 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. 7 year limited warranty; equipped with end of life signal chirp, so you know when it’s time to replace the unit for safety.
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
5. FIRST ALERT
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9v, FIRST ALERT FAT1039718 Battery-Powered Carbon Monoxide Alarm, White
#adFIRST ALERT #ad - Battery-operated design works almost anywhere. Loud 85db alarm sounds when Carbon monoxide levels are elevated. Most accurate electrochemical carbon monoxide sensor technology. Single test/silence button for simple operation. Alerts to dangerous Carbon monoxide levels.More information #ad
Brand | FIRST ALERT #ad |
Manufacturer | First Alert #ad |
Height | 8.5 Inches |
Length | 7 Inches |
Weight | 0.45 Pounds |
Width | 2.5 Inches |
Part Number | 1039718 |
Model | FAT1039718 |
Warranty | 5 years |
More information #ad
6. FIRST ALERT
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White, Battery Operated , First Alert SCO7CN Combination Smoke and Carbon Monoxide Detector with Voice and Location
#adFIRST ALERT #ad - 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. Features an electrochemical carbon monoxide sensing technology as well as a photoelectric sensor that detects the larger particles of a smoldering fire.Keep your family safe with this talking battery operated smoke and carbon monoxide alarm; it's equipped with voice and location, so you are alerted of the danger and where it originates from across your house.
More information #ad
Tells you whether the danger is smoke or carbon monoxide and where the threat is among up to 11 preprogrammed locations in your home. 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. It can ship within the US except New York. Simple to use, with a single test/silence button, and EZ access battery drawer allows you to change batteries without removing alarm from the ceiling.
Brand | FIRST ALERT #ad |
Manufacturer | Petra Industries, Inc. - Consumer Electronics Replen #ad |
Height | 5 Inches |
Length | 5 Inches |
Weight | 0.67 Pounds |
Width | 2 Inches |
Part Number | SCO7CN |
Model | PC900V |
More information #ad
7. FIRST ALERT
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First Alert CO605 Plug-In Carbon Monoxide Detector with Battery Backup , White
#adFIRST ALERT #ad - Simple to use, with a single test/silence button; A loud 85 decibel alarm sounds when carbon monoxide 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.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.
More information #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. Features an advanced electrochemical carbon monoxide sensor that accurately detects carbon monoxide levels, no matter where the detector is placed in the room. 7 year limited warranty; equipped with end of life signal chirp, so you know when it’s time to replace the unit for safety. 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
8. FIRST ALERT
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First Alert SCO5CN Combination Smoke and Carbon Monoxide Detector, White, Battery Operated
#adFIRST ALERT #ad - Keep your family safe with this battery operated smoke and carbon monoxide alarm; Battery powered alarms provide continuous monitoring of CO levels, even if there's a power failure. Low battery signal mute, quiets low battery signal for up to 8 hours.Features an electrochemical carbon monoxide sensing technology as well as a photoelectric sensor that detects the larger particles of a smoldering fire. Battery operated unit installs quickly and easily without an electrician. 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.
More information #ad
Simple to use, with a single test/silence button; EZ access battery drawer allows you to change battery without removing alarm from ceiling. 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. It can ship within the US except New York. Emits T3 Pattern. 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 alarms are rigorously tested to meet UL standards.
Brand | FIRST ALERT #ad |
Manufacturer | First Alert #ad |
Height | 5 Inches |
Length | 2 Inches |
Weight | 0.6 Pounds |
Width | 5 Inches |
Part Number | SCO5CN |
Model | SCO5CN |
Warranty | ------- |
More information #ad
9. 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 - 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.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.
More information #ad
A loud 85 decibel alarm sounds when Carbon Monoxide 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; 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.
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
10. FIRST ALERT
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First Alert CO710 Carbon Monoxide Detector with 10-Year Battery and Digital Temperature Display
#adFIRST ALERT #ad - A loud 85-decibel alarm sounds when CO levels reach dangerous levels. 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.10-year limited warranty; equipped with end-of-life signal chirp, so you know when it’s time to replace the unit for safety.
More information #ad
Easy-to-read backlit digital display shows temperature and CO concentration; Peak Level feature displays the highest concentration of carbon monoxide measured. All first alert cO alarms are rigorously tested to meet UL standards. Built-in 10-year lithium battery offers continuous protection for the life of the carbon monoxide detector. 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 | 2.63 Inches |
Length | 0.94 Inches |
Weight | 0.5 Pounds |
Width | 4.75 Inches |
Part Number | CO710 |
Model | CO710 |
More information #ad