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Includes an 85-decibel horn, single test/silence button, side access to a tamper-resistant battery door, and pins that lock the alarm to the mounting bracket.
Certified to work with smart home systems such as ring Alarm, Samsung SmartThings, and Nexia Home Intelligence when connected to a Z-Wave Plus gateway hub sold separately; Not compatible with Wink or Onelink. The z-wave plus with smart start feature allows a faster and more intuitive connection of device to hub and on-boarding via QR code scan located on device.

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. 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.

Equipped with photoelectric smoke sensor optimized to detect larger smoke particles produced by smoldering fires; helps minimize the number of false alarms. Hardwired alarm includes 2 AA backup batteries for continued monitoring in the event of a power outage.


Faster turnarounds on job sites with the easy-to-install, most-trusted alarms in home safety.
In case of danger, the loud spread spectrum alarm is designed to be heard easily by even those with some hearing issues. 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. 10 year limited warranty; equipped with end of life signal chirp, so you know when it's time to replace the unit for your safety.

Informative lcd: displays real-time co levels from 30–999 ppm parts per million taken from the surrounding air, as well as battery level and working status.

Voice alerts: key voice location technology annoz the type and location of the danger in your home, keeping your entire home safe and connected during an emergency.
Interconnectivity: unlike other smart combo alarms, and can send a mobile notification for any detected emergency, safe and sound can connect with any other hardwired alarms in your home including First Alert and non First Alert brands, keeping your whole home safe and connected. Airplay 2 enables a wireless multi room audio system, creating an easy way to stream music anywhere in the home to different iOS and other AirPlay 2 compatible devices.

Features photoelectric smoke sensor and electrochemical CO sensor. Battery operated smoke and carbon monoxide alarm can be installed easily.

Rigorously tested to meet UL standards. 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.
Can connect to other compatible BRK or First Alert detectors, to ensure all alarms will sound when a threat is detected. Keep your family safe with this 12 pack of hardwired smoke and carbon monoxide alarms; the battery backup means constant monitoring, even if there's a power failure.

Wide coverage for full home protection: Interlinks with up to 24 X-Sense smoke, or combination alarms in a network, CO, ensuring your entire house is fully protected.
1. FIRST ALERT
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Works with Ring Alarm, First Alert Z-Wave Smoke Detector & Carbon Monoxide Alarm, 2nd Generation
#adFIRST ALERT #ad - This device is certified to work with Ring; Requires Ring Alarm to Work with Ring. Receive real-time notifications in the Ring App when smoke or carbon monoxide is detected. Photoelectric smoke sensor helps reduce false alarms caused by cooking or shower steam.Includes an 85-decibel horn, single test/silence button, side access to a tamper-resistant battery door, and pins that lock the alarm to the mounting bracket.
More information #ad
Enjoy improved compatibility, easier setup and a seamless in-app experience. Help keep your family safe with this battery-powered smoke detector and carbon monoxide alarm; includes 2 AA batteries. Certified to work with smart home systems such as ring Alarm, Samsung SmartThings, and Nexia Home Intelligence when connected to a Z-Wave Plus gateway hub sold separately; Not compatible with Wink or Onelink. The z-wave plus with smart start feature allows a faster and more intuitive connection of device to hub and on-boarding via QR code scan located on device.
Brand | FIRST ALERT #ad |
Manufacturer | First Alert #ad |
Height | 8.5 Inches |
Length | 3.66 Inches |
Weight | 0.68 Pounds |
Width | 6.75 Inches |
Part Number | 1044807 |
Model | 1044807 |
Warranty | 7 Year Limited Warranty |
More information #ad
2. FIRST ALERT
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FIRST ALERT BRK SC7010BV-3 Hardwired Talking Photoelectric Smoke and Carbon Monoxide CO Detector, 3-Pack
#adFIRST ALERT #ad - Faster turnarounds on job sites with the easy-to-install, most-trusted alarms in home safety. Tells you whether the danger is smoke or carbon monoxide and where the threat is among up to 11 pre-programmed 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.
More information #ad
Keep your family safe with this 3-pack of talking hardwired smoke and carbon monoxide alarms; they're equipped with voice and location, so you are alerted of the danger and where it originates from across your house. Can connect to other compatible BRK or First Alert detectors, to ensure all alarms will sound when threat is detected. 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.
Brand | FIRST ALERT #ad |
Manufacturer | First Alert / BRK Brands, Inc. #ad |
Height | 2.4 Inches |
Length | 5.1 Inches |
Weight | 0.74 Pounds |
Width | 5.1 Inches |
Part Number | SC7010BVFF-3 |
Model | BRK SC7010BV-3 |
More information #ad
3. FIRST ALERT
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FIRST ALERT Hardwired Wireless Smoke Alarm with Photoelectric Sensor and Battery Backup, SA521CN-3ST
#adFIRST ALERT #ad - Help keep your family safe with this hardwired smoke alarm that wirelessly interconnects with other First Alert–enabled alarms to create a home safety network.Equipped with photoelectric smoke sensor optimized to detect larger smoke particles produced by smoldering fires; helps minimize the number of false alarms. Hardwired alarm includes 2 AA backup batteries for continued monitoring in the event of a power outage.
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. Includes test/silence button, low-battery warning, EZ access battery door. Wirelessly connect up to 18 First Alert enabled alarms for the maximum in whole-home protection.Brand | FIRST ALERT #ad |
Manufacturer | First Alert #ad |
Height | 5 Inches |
Length | 5 Inches |
Weight | 0.78 Pounds |
Width | 2 Inches |
Part Number | SA520B-SA521CN |
Model | SA521CN-3ST |
More information #ad
4. FIRST ALERT
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SC500-3, First Alert Wireless Interconnected Photoelectric Smoke and Carbon Monoxide Combo Alarm with Voice and Location
#adFIRST ALERT #ad - Features photoelectric smoke sensor and electrochemical CO sensor. One button silences a false alarm and tests the unit. Connects multiple alarms together for wireless safety network.More information #ad
Battery-operated smoke and carbon monoxide alarm. Voice alarm gives clear indication of where the problem is located.Brand | FIRST ALERT #ad |
Manufacturer | BRK Brands #ad |
Height | 9 Inches |
Length | 10.75 Inches |
Width | 7.13 Inches |
Part Number | 1042870 |
Model | 1042870 |
Warranty | 7-YEAR LIMITED WARRANTY |
More information #ad
5. FIRST ALERT
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First Alert BRK SC7010B Hardwired Smoke and Carbon Monoxide CO Detector with Battery Backup , White
#adFIRST ALERT #ad - Can connect to other compatible BRK or First Alert detectors, to ensure all alarms will sound when threat is detected. 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.Faster turnarounds on job sites with the easy-to-install, most-trusted alarms in home safety.
More information #ad
Features electrochemical carbon monoxide sensing technology as well as a photoelectric sensor equipped with Optipath 360 technology that enhances detection with 360 degree access and reliably detects smoke from smoldering fires. In case of danger, the loud spread spectrum alarm is designed to be heard easily by even those with some hearing issues. 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. 10 year limited warranty; equipped with end of life signal chirp, so you know when it's time to replace the unit for your safety.
Brand | FIRST ALERT #ad |
Manufacturer | First Alert #ad |
Height | 2 Inches |
Length | 5 Inches |
Weight | 0.7 Pounds |
Width | 5 Inches |
Part Number | SC7010B |
Model | SC7010B |
Warranty | 7 Year Limited Warranty |
More information #ad
6. X-Sense
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Over 820 ft Transmission Range, SC07-W, X-Sense Wireless Interconnected Combination Smoke and Carbon Monoxide Detector with LCD Display & 10-Year Battery, Pack of 6
#adX-Sense #ad - Built-in 10-year battery: features a built-in 10-year lithium battery, so you’ll never need to worry about replacing batteries during the lifetime of the unit. Wide coverage for full home protection: Up to 24 X-Sense Link+ devices can be interconnected to create a wireless safety network for your entire house.Informative lcd: displays real-time co levels from 30–999 ppm parts per million taken from the surrounding air, as well as battery level and working status.
More information #ad
2-in-1 protection: equipped with both a photoelectric smoke sensor and an electrochemical CO sensor to provide reliable protection against both smoke and CO. Hear an alarm from anywhere: if one alarm detects smoke or dangerous CO levels, all wireless interconnected units will activate, ensuring the earliest possible warning.Brand | X-Sense #ad |
Manufacturer | X-Sense #ad |
Height | 2 Inches |
Length | 5.7 Inches |
Weight | 1 Pounds |
Width | 5.7 Inches |
Warranty | 60-day money-back guarantee and 5-year quality warranty and lifetime technical support |
More information #ad
7. FIRST ALERT
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First Alert Onelink Safe & Sound, Smart Hardwired Smoke + Carbon Monoxide Alarm and Premium Home Speaker with Amazon Alexa
#adFIRST ALERT #ad - Alexa enabled: you can talk to alexa on your safe and sound, pandora, fill you in on the news, Spotify, check weather, and more; plus Alexa’s always adding skills, control smart home devices, and ask it to play music or podcasts from Music, and more, read audiobooks, so it gets smarter over time. About safe and sound: first alert introduces onelink safe and sound, Apple HomeKit compatible hardwired photoelectric smoke and electrochemical carbon monoxide alarm, an Alexa enabled, featuring a state of the art, Omni directional speaker backed by First Alert’s unparalleled reliability and equipped with the power of Alexa.Voice alerts: key voice location technology annoz the type and location of the danger in your home, keeping your entire home safe and connected during an emergency.
More information #ad
Safe & sound supports AirPlay 2 and requires iOS 12. 2 or later or macOS 1014. 4 or later. No more confusing beeps: track battery levels in the app and optimize safety by knowing when it’s time to replace them. Easy to install: optimal ceiling placement enhances the speaker’s acoustic quality; make installation fast and easy by using the included AC adapter plugs to replace your existing hardwire alarms without rewiring AC power is required for Onelink Safe and Sound. Interconnectivity: unlike other smart combo alarms, and can send a mobile notification for any detected emergency, safe and sound can connect with any other hardwired alarms in your home including First Alert and non First Alert brands, keeping your whole home safe and connected. Airplay 2 enables a wireless multi room audio system, creating an easy way to stream music anywhere in the home to different iOS and other AirPlay 2 compatible devices.
Brand | FIRST ALERT #ad |
Manufacturer | First Alert #ad |
Height | 2 Inches |
Length | 7 Inches |
Weight | 1.76 Pounds |
Width | 7 Inches |
Part Number | 1039102 |
Model | 1039102 |
Warranty | 3 Years |
More information #ad
8. FIRST ALERT
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Battery Operated, First Alert SCO501CN-3ST Wireless Interconnected Combination Smoke and Carbon Monoxide Alarm with Voice Location
#adFIRST ALERT #ad - Voice alarm gives clear indication of where the problem is located. 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 photoelectric smoke sensor and electrochemical CO sensor. Battery operated smoke and carbon monoxide alarm can be installed easily.
More information #ad
Connects multiple alarms together for wireless safety network. Loud 85 decibel alarm. Note: kindly refer to the user manual provided as a PDF manual in the product description section. One button silences a false alarm and tests the unit.Brand | FIRST ALERT #ad |
Manufacturer | First Alert #ad |
Height | 2 Inches |
Length | 5 Inches |
Weight | 0.2 Pounds |
Width | 5 Inches |
Part Number | SCO500 |
Model | SCO500 |
Warranty | 7 Year |
More information #ad
9. FIRST ALERT
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First Alert BRK SC9120B-12 Hardwired Smoke and Carbon Monoxide CO Detector with Battery Backup, 12-Pack
#adFIRST ALERT #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.Rigorously tested to meet UL standards. 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.
More information #ad
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 a threat is detected. Keep your family safe with this 12 pack of hardwired smoke and carbon monoxide alarms; the battery backup means constant monitoring, even if there's a power failure.
Brand | FIRST ALERT #ad |
Manufacturer | First Alert / BRK Brands, Inc. #ad |
Height | 12.63 Inches |
Length | 14.43 Inches |
Width | 6.19 Inches |
Part Number | SC9120B |
Model | BRK SC9120B-12 |
Warranty | 7 Year Limited |
More information #ad
10. X-Sense
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Over 820 ft Transmission Range, Large Silence Button, X-Sense 10 Years Battery Wireless Interconnected Combination Smoke Carbon Monoxide Detector Alarm with , XP01-W, 6-Pack
#adX-Sense #ad - 2-in-1 protection: built with a photoelectric smoke sensor and an electrochemical CO sensor to protect your home from 2 potentially deadly threats. Entire house notification: if one alarm goes off, all other interlinked alarms will follow suit, alerting you to danger regardless of where you are.Wide coverage for full home protection: Interlinks with up to 24 X-Sense smoke, or combination alarms in a network, CO, ensuring your entire house is fully protected.
More information #ad
Worry-free after-sales services: 60-day money-back guarantee, 5-year warranty, and lifetime customer support; feel free to contact us if you have any problems. Built-in 10-year battery: uninterrupted 24/7 monitoring with a 10-year sealed lithium battery, freeing you from frequent battery replacement.Brand | X-Sense #ad |
Manufacturer | X-Sense #ad |
Height | 1.7 Inches |
Length | 5.3 Inches |
Weight | 0.44 Pounds |
Width | 5.3 Inches |
Model | XP01-W |
Warranty | 60-day money-back guarantee, 5-year quality warranty, and lifetime technical support |
More information #ad