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Detection anywhere: features wireless interconnection so that if one alarm is triggered, they all go off, and they stay connected using radio frequency with a transmission range over 820 ft 250 m in the open air.

Keep your family safe with this 6 pack of hardwired smoke alarms; 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. Rigorously tested to meet UL standards. Can connect to other compatible BRK or First Alert smoke detectors, to ensure all alarms will sound when smoke is detected. 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.

No more confusing beeps: track battery levels in the app and optimize safety by knowing when it’s time to replace them. 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.
Alexa enabled: you can talk to alexa on your safe and sound, and more, spotify, Pandora, and more; plus Alexa’s always adding skills, control smart home devices, and ask it to play music or podcasts from Music, fill you in on the news, read audiobooks, check weather, so it gets smarter over time. 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. Safe & sound supports AirPlay 2 and requires iOS 12.

To ensure complete protection make sure to place 1 on each level of your home and in each bedroom. Keep your family safe with this 6-pack of hardwired smoke alarms; The battery backup means constant monitoring, even if there's a power failure.

Complies with all current 10 year legislation in U. S. Loud 85 decibel siren sounds to alert you to danger. To ensure complete protection make sure to place one on each level of your home and in each bedroom.

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 sensor.
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. Smoke alarm has a built-in escape light feature that helps guide your way in a power failure or other emergency.

Note: kindly refer to the user manual provided as a PDF manual in the product description section.
The 85-decibel alarm 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. Tells you whether the danger is smoke or carbon monoxide and where the threat is among up to 11 preprogrammed locations in your home. Can connect to other compatible BRK or First Alert detectors, to ensure all alarms will sound when threat is detected.
1. FIRST ALERT
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First Alert ADK-12 Smoke Alarm Adapter Plug
#adFIRST ALERT #ad - Ideal for retrofit applications. Pack of 12. Faster turnarounds on job sites with the easy to install, most trusted alarms in home safety. Convenient adapter plug saves time and installation costs when retrofitting existing homes or apartments.More information #ad
See full list of compatible models below. Easily connect first alert BRK smoke and combination alarms to competitive alarms without rewiring. Compatible for hardwire replacement of Kidde, Fyrnetics and Lifesaver models.Brand | FIRST ALERT #ad |
Manufacturer | First Alert / BRK Brands, Inc. #ad |
Height | 1 Inches |
Length | 3 Inches |
Weight | 0.31 Pounds |
Width | 1 Inches |
Part Number | ADK-12 |
Model | ADK-12 |
More information #ad
2. First Alert / BRK Brands, Inc.
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Pack of 12, First Alert BRK ADF-12 BRK Smoke Alarm Adapter Plug for Firex Hardwire Smoke Alarms
#adFirst Alert / BRK Brands, Inc. #ad - Compatible with sc9120b, 2002rac, 4120-series, sc6120b, 9120-series, 5919, hd6135FB, 7010-series, 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.More information #ad
Ideal for retrofitting jobs. Compatible with 406 g-6, 4518 adc, 5700 adh, 4480 pad, 4618 fadc, 484 pg-40, and 499 Firex alarms. 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.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
3. X-Sense
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Pack of 6, X-Sense 10-Year Battery Wireless Interconnected Smoke Detector Fire Alarm with Over 820 ft Transmission Range, SD19-W
#adX-Sense #ad - Battery powered smoke alarm: built with a 10-year sensor and powered by a sealed 10-year lithium battery that doesn’t need to be replaced. Premium quality material: this smoke detector is made from an upgraded premium material that is durable, corrosion-resistant, and flame-retardant.Detection anywhere: features wireless interconnection so that if one alarm is triggered, they all go off, and they stay connected using radio frequency with a transmission range over 820 ft 250 m in the open air.
More information #ad
Ready to use: the multi-pack detectors have already been connected for instant use, and you can connect up to 24 Link+ wireless alarms at a time. Customizable wireless network: For a customized network, add new devices to the existing network, or disconnect the devices and create multiple networks.Brand | X-Sense #ad |
Manufacturer | X-Sense #ad |
Height | 1.8 Inches |
Length | 4.8 Inches |
Width | 4.8 Inches |
Warranty | 60-day money-back guarantee, 5-year quality warranty, and lifetime technical support |
More information #ad
4. FIRST ALERT
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6-Pack, First Alert BRK 9120B6CP Hardwired Smoke Alarm with Backup Battery
#adFIRST ALERT #ad - Note: a loose neutral white wire connection within the home junction box could prompt a device malfunction. 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.Keep your family safe with this 6 pack of hardwired smoke alarms; the battery backup means constant monitoring, even if there's a power failure.
More information #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. Emits T3 pattern. Faster turnarounds on job sites with the easy-to-install, most-trusted alarms in home safety. Rigorously tested to meet UL standards. Can connect to other compatible BRK or First Alert smoke detectors, to ensure all alarms will sound when smoke is detected. 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 | 5.6 Inches |
Length | 5.6 Inches |
Width | 1.9 Inches |
Part Number | 9120B6CP |
Model | BRK9120b |
Warranty | 10 year |
More information #ad
5. FIRST ALERT
#ad
Smart Hardwired Smoke + Carbon Monoxide Alarm and Premium Home Speaker with Amazon Alexa, First Alert Onelink Safe & Sound
#adFIRST ALERT #ad - Easy mobile controls: get remote notifications of an emergency in your home for 24/7 safety, plus track carbon monoxide levels, and more, customize nightlights, using First Alert's Onelink Home app. About safe and sound: first alert introduces onelink safe and sound, Apple HomeKit compatible hardwired photoelectric smoke and electrochemical carbon monoxide alarm, featuring a state of the art, an Alexa enabled, Omni directional speaker backed by First Alert’s unparalleled reliability and equipped with the power of Alexa.No more confusing beeps: track battery levels in the app and optimize safety by knowing when it’s time to replace them. 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.
More information #ad
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. 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. Alexa enabled: you can talk to alexa on your safe and sound, and more, spotify, Pandora, and more; plus Alexa’s always adding skills, control smart home devices, and ask it to play music or podcasts from Music, fill you in on the news, read audiobooks, check weather, so it gets smarter over time. 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. Safe & sound supports AirPlay 2 and requires iOS 12.
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
6. FIRST ALERT
#ad
6-Pack, FIRST ALERT BRK 3120B-6 Hardwired Smoke Detector with Photoelectric and Ionization with Battery Backup
#adFIRST ALERT #ad - Simple to use, with a single test/silence button and side-load battery compartment; Included mounting bracket makes installation easy. Equipped with optipath 360 technology that enhances detection with 360-degree access, and reliably detects smoke.To ensure complete protection make sure to place 1 on each level of your home and in each bedroom. Keep your family safe with this 6-pack of hardwired smoke alarms; The battery backup means constant monitoring, even if there's a power failure.
More information #ad
Equipped with both a photoelectric and ionization sensor to quickly detect both fast burning, and smoldering fires, which alerts you with an 85-decibel alarm. Faster turnarounds on job sites with the easy-to-install, most-trusted alarms in home safety.Brand | FIRST ALERT #ad |
Manufacturer | First Alert #ad |
Height | 2.4 Inches |
Length | 5.7 Inches |
Weight | 0.7 Pounds |
Width | 5.7 Inches |
Part Number | 3120BFF-6 |
Model | BRK 3120B-6 |
More information #ad
7. FIRST ALERT
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FIRST ALERT Dual Sensor Smoke and Fire Alarm, SA3210
#adFIRST ALERT #ad - States/cities where required. Meets ul217 standards and complies with legislative requirements for 10 year battery operated smoke alarms. The 10 year lithium ion battery offers continuous power for the life of the alarm and provides continued monitoring even if there's a power failure.Complies with all current 10 year legislation in U. S. Loud 85 decibel siren sounds to alert you to danger. To ensure complete protection make sure to place one on each level of your home and in each bedroom.
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. Equipped with a dual photoelectric and ionization smoke sensor to quickly detect both fast burning and smoldering fires.Brand | FIRST ALERT #ad |
Manufacturer | First Alert #ad |
Height | 5 Inches |
Length | 2 Inches |
Weight | 0.65 Pounds |
Width | 5 Inches |
Part Number | SA3210 |
Model | SA3210 |
Warranty | 10 Year Limited Warranty |
More information #ad
8. FIRST ALERT
#ad
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.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 sensor.
More information #ad
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. Smoke alarm has a built-in escape light feature that helps guide your way in a power failure or other emergency.
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
#ad
FIRST ALERT BRK SC7010BV Hardwired Talking Photoelectric Smoke and Carbon Monoxide CO Detector
#adFIRST ALERT #ad - Rigorously tested to meet UL standards. Keep your family safe with this talking hardwired 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. 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.Note: kindly refer to the user manual provided as a PDF manual in the product description section.
More information #ad
Faster turnarounds on job sites with the easy-to-install, most-trusted alarms in home safety. 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. The 85-decibel alarm 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. Tells you whether the danger is smoke or carbon monoxide and where the threat is among up to 11 preprogrammed locations in your home. Can connect to other compatible BRK or First Alert detectors, to ensure all alarms will sound when threat is detected.
Brand | FIRST ALERT #ad |
Manufacturer | First Alert / BRK Brands, Inc. #ad |
Height | 5.13 Inches |
Length | 5.13 Inches |
Weight | 0.7 Pounds |
Width | 2.38 Inches |
Part Number | SC7010BV |
Model | SC7010BV |
Warranty | 10 year |
More information #ad