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Equipped with an ionization sensor, this smoke alarm reliably detects smoke from fast flaming fires and alerts you with an 85 decibel alarm. Faster turnarounds on job sites with the easy-to-install, most-trusted alarms in home safety.
Keep your family safe with this hardwired smoke alarm the battery backup means constant monitoring, even if there's a power failure. 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.

Complies with all current 10-year legislation in U. S. Meets ul217 standards and complies with legislative requirements for 10-year battery operated smoke alarms.
States/cities where required. Equipped with photoelectric smoke sensor optimized to detect larger smoke particles produced by smoldering fires; helps minimize the number of false alarms. Patented smoke entry system allows for a direct path to the photoelectric smoke sensor. Nuisance free photoelectric technology reduces false alarms that result from cooking and shower steam.

No battery changes for the Life of the Alarm; 3V Lithium Power Cell Included. 10-year limited warranty. Same features as sa340cn and SA340B but adds Sealed Battery Technology. Alarm also features loud 85-decibel alarm, a single test/silence button, easy mounting bracket, and an end-of-life signal so you know when to replace the unit.
States/cities where required. Battery-operated unit provides continuous monitoring even if there's a power failure: Plus, it's easy to install. Complies with all current 10-year legislation in U. S. To ensure complete protection make sure to place one on each level of your home and in each bedroom. Ionization Sensor.

Help keep your family safe with this battery powered smoke alarm featuring an ionization sensor for smoke detection; a loud 85 decibel alarm sounds when smoke levels are elevated.


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. 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.
Simple to use, with a single test/silence button; EZ access battery drawer allows you to change battery without removing alarm from ceiling. Emits T3 Pattern. 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. Battery operated unit installs quickly and easily without an electrician.

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.
Features an electrochemical carbon monoxide sensing technology as well as an ionization sensor for smoke detection. 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. Rigorously tested to meet UL standards.

Patented smoke entry system allows for a direct path to the sensor. Powered by sealed, 10-year lithium-ion batteries to provide continuous protection for ten years without battery replacement.
Features loud 85-decibel alarm and single test/silence button. Slim shape is half as thick as a standard smoke alarm; features easy twist-lock mounting system and tamper-resistant design. Meets ul217 standards and complies with legislative requirements for 10-year battery operated smoke alarms.

Reliable 85-decibel siren | effectively warns occupants of threat through sound; provides protection even when electricity fails or during power outages. Tamper-resistant locking pin | locks alarm cover to prevent removal of battery.

Certified to work with smart home systems such as ring alarm Base Station, Samsung SmartThings, and Nexia Home Intelligence when connected to a Z-Wave Plus gateway hub sold separately; Not compatible with Wink or Onelink.
Enjoy improved compatibility, easier setup and a seamless in-app experience. Photoelectric smoke sensor helps reduce false alarms caused by cooking or shower steam. 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.
1. FIRST ALERT
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1-Pack, First Alert 9120B Smoke Detector, Hardwired Alarm with Battery Backup
#adFIRST ALERT #ad - To ensure complete protection make sure to place one on each level of your home and in each bedroom. Can connect to other compatible BRK or first alert smoke detectors, to ensure all alarms will sound when smoke is detected.Equipped with an ionization sensor, this smoke alarm reliably detects smoke from fast flaming fires and alerts you with an 85 decibel alarm. Faster turnarounds on job sites with the easy-to-install, most-trusted alarms in home safety.
More information #ad
Rigorously tested to meet ul standards120 volt AC power with 9V battery backup to keep alarm functioning during power outage. 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 hardwired smoke alarm the battery backup means constant monitoring, even if there's a power failure. 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 | 0.8 Pounds |
Width | 5.6 Inches |
Part Number | 9120BFF |
Model | 9120B |
Warranty | 10 Year Limited |
More information #ad
2. FIRST ALERT
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PR710, First Alert Slim Photoelectric Smoke Alarm with 10-Year Sealed Battery, White
#adFIRST ALERT #ad - Patented smoke entry system allows for a direct path to the sensor. Features loud 85-decibel alarm and single test/silence button. 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.Complies with all current 10-year legislation in U. S. Meets ul217 standards and complies with legislative requirements for 10-year battery operated smoke alarms.
More information #ad
Slim shape is half as thick as a standard smoke alarm; easy twist-lock mounting system and tamper-resistant design. New sleek and thin design adds an element of style to safety. Powered by sealed, ten year lithium batteries to provide continuous protection for ten years without battery replacement. States/cities where required. Equipped with photoelectric smoke sensor optimized to detect larger smoke particles produced by smoldering fires; helps minimize the number of false alarms. Patented smoke entry system allows for a direct path to the photoelectric smoke sensor. Nuisance free photoelectric technology reduces false alarms that result from cooking and shower steam.
Brand | FIRST ALERT #ad |
Manufacturer | First Alert #ad |
Height | 0.96 Inches |
Length | 4.92 Inches |
Weight | 1 Pounds |
Width | 4.92 Inches |
Part Number | PR710 |
Model | PR710 |
More information #ad
3. FIRST ALERT
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First Alert 0827B Ionization Smoke Alarm with 10-Year Sealed Tamper-Proof Battery , White
#adFIRST ALERT #ad - Perfect mount allows for easy alignment of alarm. No battery changes for the Life of the Alarm; 3V Lithium Power Cell Included. Alarm features an ionization sensor for smoke detection, which is effective in recognizing smoke from flaming fires such as paper and grease fires.No battery changes for the Life of the Alarm; 3V Lithium Power Cell Included. 10-year limited warranty. Same features as sa340cn and SA340B but adds Sealed Battery Technology. Alarm also features loud 85-decibel alarm, a single test/silence button, easy mounting bracket, and an end-of-life signal so you know when to replace the unit.
More information #ad
Perfect mount allows for easy alignment of alarm. 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. States/cities where required. Battery-operated unit provides continuous monitoring even if there's a power failure: Plus, it's easy to install. Complies with all current 10-year legislation in U. S. To ensure complete protection make sure to place one on each level of your home and in each bedroom. Ionization Sensor.
Brand | FIRST ALERT #ad |
Manufacturer | First Alert #ad |
Height | 5.6 Inches |
Length | 5.6 Inches |
Weight | 0.01 Pounds |
Width | 2.25 Inches |
Part Number | FBA_0827B |
Model | 0827B |
Warranty | ------- |
More information #ad
4. FIRST ALERT
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First Alert SA303CN3 Battery Powered Ionization Smoke Alarm with Test/Silence Button , White
#adFIRST ALERT #ad - Tamper resistant alarm also features a single test/silence button, side battery door, and missing battery guard. 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.Help keep your family safe with this battery powered smoke alarm featuring an ionization sensor for smoke detection; a loud 85 decibel alarm sounds when smoke levels are elevated.
More information #ad
To ensure complete protection make sure to place one on each level of your home and in each bedroom. Battery operated alarm unit provides continuous monitoring even if there's a power failure; Plus, it's easy to install. It can ship within the US except New York. Ionization sensor is effective in recognizing smoke from flaming fires such as paper and grease fires.Brand | FIRST ALERT #ad |
Manufacturer | First Alert #ad |
Height | 1.9 Inches |
Length | 4.3 Inches |
Weight | 0.5 Pounds |
Width | 4.3 Inches |
Part Number | SA303CN3 |
Model | SA303CN3 |
Warranty | 10-year limited warranty |
More information #ad
5. FIRST ALERT
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First Alert BRK 7010B Hardwired Smoke Detector with Photoelectric Sensor and Battery Backup , White
#adFIRST ALERT #ad - Features convenient 9 volt battery backup, silence/test button, dust cover, 85 decibel alarm. Inter connectable with BRK and first alert hardwired smoke and carbon monoxide alarms. Intuitive latching alarm indicator identifies which unit triggered alarm.More information #ad
Faster turnarounds on job sites with the easy-to-install, most-trusted alarms in home safety. Backed by 10 year limited warranty and tested to meet UL 217 standards. 120 volt hardwire smoke alarm with photoelectric sensor and battery backup. 85 decibel alarm.Brand | FIRST ALERT #ad |
Manufacturer | BRK Brands #ad |
Height | 5.13 Inches |
Length | 5.13 Inches |
Weight | 0.8 Pounds |
Width | 5.13 Inches |
Part Number | GID-601061 |
Model | 7010B |
More information #ad
6. FIRST ALERT
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Battery Operated, 1 Pack, First Alert Powered Alarm SCO5CN Combination Smoke and Carbon Monoxide Detector, White
#adFIRST ALERT #ad - Low battery signal mute, quiets low battery signal for up to 8 hours. 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.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. 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.
More information #ad
It can ship within the US except New York. Features an electrochemical carbon monoxide sensing technology as well as a photoelectric sensor that detects the larger particles of a smoldering fire. Simple to use, with a single test/silence button; EZ access battery drawer allows you to change battery without removing alarm from ceiling. Emits T3 Pattern. 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. Battery operated unit installs quickly and easily without an electrician.
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
7. FIRST ALERT
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FIRST ALERT BRK SC9120FF Hardwired Smoke and Carbon Monoxide CO Detector with Battery Backup, White, 1 pack
#adFIRST ALERT #ad - 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.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.
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. Features an electrochemical carbon monoxide sensing technology as well as an ionization sensor for smoke detection. 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. 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 | 10 Year Limited |
More information #ad
8. FIRST ALERT
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White, FIRST ALERT P1210E Smoke Alarm
#adFIRST ALERT #ad - Help keep your family safe with this battery-operated First Alert smoke alarm; the 10-year lithium-ion battery offers continuous power for the life of the alarm, and allows for monitoring even if there's a power failure.Patented smoke entry system allows for a direct path to the sensor. Powered by sealed, 10-year lithium-ion batteries to provide continuous protection for ten years without battery replacement.
More information #ad
Equipped with photoelectric smoke sensor optimized to detect larger smoke particles produced by smoldering fires; helps minimize the number of false alarms. Smoke alarm has a built-in escape light feature that helps guide your way in a power failure or other emergency. Features loud 85-decibel alarm and single test/silence button. Slim shape is half as thick as a standard smoke alarm; features easy twist-lock mounting system and tamper-resistant design. Meets ul217 standards and complies with legislative requirements for 10-year battery operated smoke alarms.
Brand | FIRST ALERT #ad |
Manufacturer | First Alert #ad |
Height | 1.25 Inches |
Length | 5.25 Inches |
Weight | 0.41 Pounds |
Width | 5.25 Inches |
Part Number | 1039856 |
Model | P1210E |
More information #ad
9. FIRST ALERT
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White, First Alert FG200 Family Gard Basics Smoke Alarm 3-Pack | Battery Operated Smoke Detector
#adFIRST ALERT #ad - Ionization smoke sensor | this smoke alarm is quick to detect fast-moving fires and flammable particles that easily spread; crucial for apartments, dorm rooms, or hotels. Includes warranty & battery | 3-year limited warranty; 9-volt battery included.Reliable 85-decibel siren | effectively warns occupants of threat through sound; provides protection even when electricity fails or during power outages. Tamper-resistant locking pin | locks alarm cover to prevent removal of battery.
More information #ad
Rigorously tested | all first alert smoke alarms are rigorously tested to meet UL standards. Low battery indicator & test button | beeping signal warns when battery needs replacing; test button ensures alarm is functioning correctly. Hinged cover design | allows for fast, easy installation and battery replacement; doesn't require professional installation or servicing.Brand | FIRST ALERT #ad |
Manufacturer | First Alert #ad |
Height | 4.54 Inches |
Length | 1.75 Inches |
Weight | 1.2 Pounds |
Width | 4.44 Inches |
Part Number | FG200B |
Model | FG200 |
Warranty | 3-year limited warranty |
More information #ad
10. FIRST ALERT
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2nd Generation, Works with Ring Alarm Base Station, First Alert Z-Wave Smoke Detector & Carbon Monoxide Alarm
#adFIRST ALERT #ad - Help keep your family safe with this battery-powered smoke detector and carbon monoxide alarm; includes 2 AA batteries. This device is certified to work with ring; Requires Ring Alarm Base Station to Work with Ring.Certified to work with smart home systems such as ring alarm Base Station, Samsung SmartThings, and Nexia Home Intelligence when connected to a Z-Wave Plus gateway hub sold separately; Not compatible with Wink or Onelink.
More information #ad
Receive real-time notifications in the Ring App when smoke or carbon monoxide is detected. Includes an 85-decibel horn, side access to a tamper-resistant battery door, single test/silence button, and pins that lock the alarm to the mounting bracket. Enjoy improved compatibility, easier setup and a seamless in-app experience. Photoelectric smoke sensor helps reduce false alarms caused by cooking or shower steam. 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 | 2 Inches |
Length | 5 Inches |
Width | 0 Inches |
Part Number | 1044807 |
Model | 1044807 |
Warranty | 7 Year Limited Warranty |
More information #ad