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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. Rigorously tested to meet ul standards120 volt AC power with 9V battery backup to keep alarm functioning during power outage.
To ensure complete protection make sure to place one on each level of your home and in each bedroom. 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 smoke detectors, to ensure all alarms will sound when smoke is detected.



Rigorously tested to meet ul standards ; 120-volt hardwired smoke alarm wires directly into your home’s electrical system. Faster turnarounds on job sites with the easy-to-install, most-trusted alarms in home safety.
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. Emits T3 Pattern. Can connect to other compatible BRK or First Alert smoke detectors, to ensure all alarms will sound when smoke is detected.

Green led indicates the presence of AC power. Dust cover protects sensor during construction. Photoelectric sensor – advanced photoelectric sensor may detect visible particles associated with smoldering fires sooner than ionization alarms.


In an emergency, seconds count. Nest protect uses two wavelengths of light to look for both fast and slow burning fires.
0 le, wi-fi 4 802. 11n. Tells you what and where. Split spectrum sensor looks for both fast burning and smoldering, and tells you where the danger is. The nest smoke and carbon monoxide alarm has sensors with a 10-year lifespan to help keep your family safe for up to a decade. Split-spectrum sensor. Carbon monoxide is odorless, invisible and deadly. 10-year carbon monoxide sensor.

Battery-operated unit provides continuous monitoring even if there's a power failure: Plus, it's easy to install. Same features as sa340cn and SA340B but adds Sealed Battery Technology. No battery changes for the Life of the Alarm; 3V Lithium Power Cell Included.
To ensure complete protection make sure to place one on each level of your home and in each bedroom. Perfect mount allows for easy alignment of alarm. 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. Perfect mount allows for easy alignment of alarm. Ionization Sensor. Complies with all current 10-year legislation in U. S.

To use airplay 2, update your devices to the latest software version and add your AirPlay 2-compatible speakers to the Home app on your iOS device. Easy mobile controls: get remote notifications of an emergency in your home for 24/7 safety, and more, customize nightlights, plus track carbon monoxide levels, using First Alert's Onelink Home app.
No more confusing beeps: track battery levels in the app and optimize safety by knowing when it’s time to replace them. 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. Safe & sound supports AirPlay 2 and requires iOS 12. 2 or later or macOS 1014. 4 or later.

1. FIRST ALERT
#ad
White, First Alert BRK 9120B Hardwired Smoke Alarm with Battery Backup
#adFIRST ALERT #ad - Keep your family safe with this hardwired smoke alarm the battery backup means constant monitoring, even if there's a power failure. Faster turnarounds on job sites with the easy-to-install, most-trusted alarms in home safety.Equipped with an ionization sensor, this smoke alarm reliably detects smoke from fast flaming fires and alerts you with an 85 decibel alarm. Rigorously tested to meet ul standards120 volt AC power with 9V battery backup to keep alarm functioning during 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. To ensure complete protection make sure to place one on each level of your home and in each bedroom. 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 smoke detectors, to ensure all alarms will sound when smoke is detected.
Brand | FIRST ALERT #ad |
Manufacturer | First Alert #ad |
Height | 2.2 Inches |
Length | 5.6 Inches |
Weight | 0.05 Pounds |
Width | 5.6 Inches |
Part Number | 9120BFF |
Model | 9120B |
Warranty | 10 Year Limited |
More information #ad
2. Kidde
#ad
Kidde I4618AC Alarm Hardwire Smoke Detector with 9V Backup and Front Load Battery Door | Model i4618, White
#adKidde #ad - Hush alarm control button silences nuisance alarms. 360° mounting bracket allows mounting from any angle. Pre-stripped wiring harness with easy-off caps ensures quick installation.More information #ad
Front load battery Compartment for easy battery replacement. 9-volt battery backup provides protection during power outages.Brand | Kidde #ad |
Manufacturer | Kidde Safety #ad |
Height | 6 Inches |
Length | 2 Inches |
Weight | 0.6 Pounds |
Width | 6 Inches |
Part Number | 21007581 |
Model | I4618AC |
Warranty | 5-year limited |
More information #ad
3. FIRST ALERT
#ad
First Alert BRK 7010B Hardwired Smoke Detector with Photoelectric Sensor and Battery Backup , White
#adFIRST ALERT #ad - 85 decibel alarm. Inter connectable with BRK and first alert hardwired smoke and carbon monoxide alarms. Backed by 10 year limited warranty and tested to meet UL 217 standards. Faster turnarounds on job sites with the easy-to-install, most-trusted alarms in home safety.More information #ad
Intuitive latching alarm indicator identifies which unit triggered alarm. Features convenient 9 volt battery backup, dust cover, silence/test button, 85 decibel alarm.120 volt hardwire smoke alarm with photoelectric sensor and battery backup.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
4. FIRST ALERT
#ad
FIRST ALERT BRK 9120LBL Hardwired Smoke Detector 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. Equipped with an ionization sensor, this smoke alarm reliably detects smoke from fast-flaming fires and alerts you with an 85-decibel alarm.Rigorously tested to meet ul standards ; 120-volt hardwired smoke alarm wires directly into your home’s electrical system. 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 alarm; the 10-year battery backup means constant monitoring for the life of the alarm, 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. Emits T3 Pattern. Can connect to other compatible BRK or First Alert smoke detectors, to ensure all alarms will sound when smoke is detected.
Brand | FIRST ALERT #ad |
Manufacturer | First Alert #ad |
Height | 5.69 Inches |
Length | 5.59 Inches |
Weight | 0.66 Pounds |
Width | 2.25 Inches |
Part Number | 9120LBL |
Model | 9120LBLFF |
Warranty | 10 |
More information #ad
5. Kidde
#ad
Kidde 21006371 p12040 Hardwire With Battery Backup Photoelectric Smoke Alarm, White
#adKidde #ad - Test button – tests unit’s electronic circuitry, horn and battery function. Quick connect power Harness – Makes installation fast and easy.Green led indicates the presence of AC power. Dust cover protects sensor during construction. Photoelectric sensor – advanced photoelectric sensor may detect visible particles associated with smoldering fires sooner than ionization alarms.
More information #ad
Battery backup 9v battery included – Provides continuous protection even during power outages. Led - red led indicates that the smoke alarm is operating properly, HushTM, and alarm condition. Battery pull Tab eliminates battery installation time and keeps battery fresh.Brand | Kidde #ad |
Manufacturer | Kidde #ad |
Height | 6 Inches |
Length | 2 Inches |
Weight | 0.5 Pounds |
Width | 6 Inches |
Part Number | 21006371 |
Model | 21006371 |
Warranty | 5 Year Limited |
More information #ad
6. First Alert / BRK Brands, Inc.
#ad
Pack of 12, First Alert BRK ADF-12 BRK Smoke Alarm Adapter Plug for Firex Hardwire Smoke Alarms
#adFirst Alert / BRK Brands, Inc. #ad - Faster turnarounds on job sites with the easy-to-install, most-trusted alarms in home safety. Easily replace hardwired Firex smoke alarms with First Alert or BRK smoke alarms. Ideal for retrofitting jobs. Compatible with 406 g-6, 4618 fadc, 4518 adc, 484 pg-40, 4480 PAD, 5700 adh, and 499 Firex alarms.More information #ad
Compatible with sc9120b, sc6120b, 7010-series, 9120-series, hd6135fb, 4120-series, 5919, 2002RAC, and RM3 First Alert or BRK alarms. Includes 12 smoke alarm adapter plugs. Refer to the pdf attached below in Technical Specification for User Manual for compatible models and brands.Brand | First Alert / BRK Brands, Inc. #ad |
Manufacturer | First Alert / BRK Brands, Inc. #ad |
Height | 1 Inches |
Length | 3 Inches |
Weight | 0.5 Pounds |
Width | 1 Inches |
Part Number | ADF-12 |
Model | ADF-12 |
More information #ad
7. Google
#ad
Smoke Alarm, White, S3000BWES, Google Nest Protect, Smoke Detector and Carbon Monoxide Detector, Battery Operated
#adGoogle #ad - Get a friendly voice alert so you can handle burning toast before it becomes a burning toaster. Co detector looks out for carbon monoxide and tells you where it's located. With app silence you can silence the smoke alarm with your phone in the Nest app when there's only a little smoke.In an emergency, seconds count. Nest protect uses two wavelengths of light to look for both fast and slow burning fires.
More information #ad
Nest protect is the first alarm you can hush from your phone. App silence. With safety check you can test all your smoke and CO alarms with just a tap and get a full report once the test is done. Connectivity: Bluetooth 4. 0 le, wi-fi 4 802. 11n. Tells you what and where. Split spectrum sensor looks for both fast burning and smoldering, and tells you where the danger is. The nest smoke and carbon monoxide alarm has sensors with a 10-year lifespan to help keep your family safe for up to a decade. Split-spectrum sensor. Carbon monoxide is odorless, invisible and deadly. 10-year carbon monoxide sensor.
Brand | Google #ad |
Manufacturer | Google Nest #ad |
Height | 5.3 Inches |
Length | 5.3 Inches |
Weight | 1 Pounds |
Width | 1.5 Inches |
Part Number | S3000BWES |
Model | 06A |
More information #ad
8. FIRST ALERT
#ad
First Alert 0827B Ionization Smoke Alarm with 10-Year Sealed Tamper-Proof Battery , White
#adFIRST ALERT #ad - 10-year limited warranty. 10-year limited warranty. 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. Ionization Sensor.Battery-operated unit provides continuous monitoring even if there's a power failure: Plus, it's easy to install. Same features as sa340cn and SA340B but adds Sealed Battery Technology. No battery changes for the Life of the Alarm; 3V Lithium Power Cell Included.
More information #ad
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. To ensure complete protection make sure to place one on each level of your home and in each bedroom. Perfect mount allows for easy alignment of alarm. 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. Perfect mount allows for easy alignment of alarm. Ionization Sensor. Complies with all current 10-year legislation in U. S.
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
9. FIRST ALERT
#ad
Smart Hardwired Smoke + Carbon Monoxide Alarm and Premium Home Speaker with Amazon Alexa, First Alert Onelink Safe & Sound
#adFIRST ALERT #ad - Interconnectivity: unlike other smart combo alarms, safe and sound can connect with any other hardwired alarms in your home including First Alert and non First Alert brands, and can send a mobile notification for any detected emergency, keeping your whole home safe and connected.To use airplay 2, update your devices to the latest software version and add your AirPlay 2-compatible speakers to the Home app on your iOS device. Easy mobile controls: get remote notifications of an emergency in your home for 24/7 safety, and more, customize nightlights, plus track carbon monoxide levels, using First Alert's Onelink Home app.
More information #ad
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. No more confusing beeps: track battery levels in the app and optimize safety by knowing when it’s time to replace them. 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. Safe & sound supports AirPlay 2 and requires iOS 12. 2 or later or macOS 1014. 4 or later.
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
10. Kidde
#ad
Kidde Smoke Detector, Smoke Alarm, Battery Powered
#adKidde #ad - Low battery warning feature indicates when the battery needs replacement. Ionization sensing technology - smoke detector detects invisible fire particles, 85 decibel alarm alerts of fire.More information #ad
Test-silence button - allows for test & silence of alarm. Ul certified, 10-year limited warranty. Easy installation - smoke detector is powered by a 9-volt battery; no hardwiring required.Brand | Kidde #ad |
Manufacturer | Kidde Safety #ad |
Height | 1 Inches |
Length | 2 Inches |
Weight | 0.62 Pounds |
Width | 1 Inches |
Part Number | i9050 |
Model | i9050 |
More information #ad