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To ensure complete protection make sure to place one on each level of your home and in each bedroom. Single test/silence button lets you easily check alarm function and mute false alarms; Use Polaroid AA batteries for best results.

A single button makes alarm easy to test monthly or silence during a false alarm. Hardwired alarm includes battery backup for power outages.
Photoelectric and ionization sensors provide comprehensive fire detection. 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. Temperature range: 40°f 4°c to 100°F 38°C.


To ensure complete protection make sure to place one on each level of your home and in each bedroom. 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.





Ionization Sensor. 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.
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. Ionization Sensor. 10-year limited warranty. No battery changes for the Life of the Alarm; 3V Lithium Power Cell Included.

1. FIRST ALERT
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First Alert SA320CN Dual-Sensor Smoke and Fire Alarm, 1 Pack, Frustration-Free Packaging, White , Battery Powered
#adFIRST ALERT #ad - Help keep your family safe with this battery operated smoke alarm; It requires no rewiring for installation and provides continuous monitoring 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. Single test/silence button lets you easily check alarm function and mute false alarms; Use Polaroid AA batteries for best results.
More information #ad
Equipped with both a photoelectric and ionization sensor to quickly detect both fast burning, and smoldering fires. Loud 85 decibel siren sounds to alert you to danger. 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 | 2 Inches |
Length | 5 Inches |
Weight | 0.9 Pounds |
Width | 5 Inches |
Part Number | SA320CN |
Model | SA320FF |
Warranty | 10 Year Limited |
More information #ad
2. FIRST ALERT
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Dual Sensing Smoke Alarm, First Alert BRK 3120B Hardwired Photoelectric and Ionization Smoke Alarm with Battery Backup, 1-Pack
#adFIRST ALERT #ad - Improved uv resistance: Keeps alarm from discoloring over time. Optipath 360 patented technology provides 360 degrees of access to the smoke alarm. Faster turnarounds on job sites with the easy-to-install, most-trusted alarms in home safety.A single button makes alarm easy to test monthly or silence during a false alarm. Hardwired alarm includes battery backup for power outages.
More information #ad
Two latching features help indicate a low battery or the originating alarm in a system. Equipped with a dual photoelectric and ionization smoke sensor to quickly detect both fast burning and smoldering fires. Photoelectric and ionization sensors provide comprehensive fire detection. 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. Temperature range: 40°f 4°c to 100°F 38°C.
Brand | FIRST ALERT #ad |
Manufacturer | First Alert #ad |
Height | 2.4 Inches |
Length | 5.7 Inches |
Weight | 0.85 Pounds |
Width | 5.7 Inches |
Part Number | 3120FF |
Model | 3120FF |
Warranty | 10 Year Limited |
More information #ad
3. Kidde
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Kidde Battery Dual Photoelectric and Ionization Sensor Smoke Detector Alarm | Model Pi9010
#adKidde #ad - The kidde pi9010 is a 9V battery powered smoke alarm. Hush feature Temporarily Silences Nuisance Alarms. Kidde's smoke alarms meet the requirements of underwriters Laboratories Ul, An Independent Facility That Tests Products For Compliance With Widely-Accepted Safety Standards.More information #ad
Model number: Pi9010 .Brand | Kidde #ad |
Manufacturer | Kidde Safety #ad |
Height | 2.2 Inches |
Length | 11.3 Inches |
Width | 7.6 Inches |
Part Number | 21026062-N |
Model | 21026062-N |
More information #ad
4. FIRST ALERT
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3-Pack, FIRST ALERT BRK 3120B-3 Hardwired Smoke Detector with Photoelectric and Ionization with Battery Backup
#adFIRST ALERT #ad - 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; Included mounting bracket makes installation easy.To ensure complete protection make sure to place one on each level of your home and in each bedroom. 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.
More information #ad
Equipped with optipath 360 technology that enhances detection with 360 degree access, and reliably detects smoke. Keep your family safe with this 3 pack of hardwired smoke alarms; The battery backup means constant monitoring, even if there's a power failure. 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 | 2.4 Inches |
Length | 5.7 Inches |
Weight | 0.7 Pounds |
Width | 5.7 Inches |
Part Number | 3120BFF-3 |
Model | BRK 3120B-3 |
More information #ad
5. Kidde
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Kidde PI2010 Hardwired Dual Photoelectric and Ionization Sensor Smoke Alarm with Battery Backup
#adKidde #ad - Dual sensor contains both a photoelectric and ionization sensor providing dual sensor protection in your home. Test/reset button tests units electronic circuitry and horn. Audio alarm:85dB at 10ft.More information #ad
Interconnectable, 120V hardwire alarm with battery backup that provides protection even during a power outage. Red led flashes every 30-40 seconds to indicate that the smoke alarm is operating properly. Hush feature temporarily silences nuisance alarms.Brand | Kidde #ad |
Manufacturer | Kidde Safety #ad |
Height | 2.8 Inches |
Length | 7.8 Inches |
Width | 7.3 Inches |
Part Number | 21026061 |
Model | 21026061 - N |
More information #ad
6. FIRST ALERT
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First Alert BRK FG250B Dual Ionization Smoke Alarm with 9-Volt Battery, White, 1"
#adFIRST ALERT #ad - Faster turnarounds on job sites with the easy-to-install, most-trusted alarms in home safety. Approved for RV Use. Tamper resistant locking Pin Locks, Alarm Cover to Prevent Removal of Battery. Silence feature Silences Nuisance Alarms. Dual ionization Sensing Chamber. 9v battery Included.More information #ad
Brand | FIRST ALERT #ad |
Manufacturer | First Alert #ad |
Height | 1.6 Inches |
Length | 4.25 Inches |
Weight | 0.2 Pounds |
Width | 4.25 Inches |
Part Number | FG250B |
Model | FG250B |
Warranty | 10 Year Limited Warranty |
More information #ad
7. FIRST ALERT
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First Alert BRK 3120B Hardwired Smoke Detector with Photoelectric and Ionization with Battery Backup
#adFIRST ALERT #ad - 2 aa batteries included; 10 Year Limited Warranty. Dual photoelectric and Ionization sensing technologies for optimal sensing of smoke particles produced in both flaming and smoldering fires. Two silence Features.More information #ad
Equipped with a dual photoelectric and ionization smoke sensor to quickly detect both fast-burning and smoldering fires. Two latching Features. Faster turnarounds on job sites with the easy-to-install, most-trusted alarms in home safety. Optipath 360 Technology.Brand | FIRST ALERT #ad |
Manufacturer | First Alert #ad |
Height | 2 Inches |
Length | 5 Inches |
Weight | 0.73 Pounds |
Width | 5 Inches |
Part Number | 3120B |
Model | 3120B |
Warranty | 10 Year Limited Warranty |
More information #ad
8. Kidde
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Kidde Smoke Detector, Ionization Smoke Alarm, 9-Volt Battery Operated, Battery Included
#adKidde #ad - Ul certification; 10-year limited warranty. Easy installation – this basic smoke detector requires no wiring. Test & silence nuisance alarms - The Test/Hush button makes it easy to test the smoke detector and to silence false alarms.More information #ad
Powered by a 9v battery included, the smoke alarm protects even when the power is out. Basic smoke alarm, affordable and simple to use to provide detection of dangerous smoke or fire.Brand | Kidde #ad |
Manufacturer | Kidde Safety #ad |
Height | 3 Inches |
Length | 4 Inches |
Weight | 0.53 Pounds |
Width | 3 Inches |
Part Number | KID0915UK |
Model | 44037402 |
Warranty | 3 Year limited Warranty |
More information #ad
9. FIRST ALERT
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White, First Alert 0827B Ionization Smoke Alarm with 10-Year Sealed Tamper-Proof Battery
#adFIRST ALERT #ad - Alarm features an ionization sensor for smoke detection, which is effective in recognizing smoke from flaming fires such as paper and grease fires. Perfect mount allows for easy alignment of alarm. To ensure complete protection make sure to place one on each level of your home and in each bedroom.Ionization Sensor. 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
Battery-operated unit provides continuous monitoring even if there's a power failure: Plus, it's easy to install. 10-year limited warranty. No battery changes for the Life of the Alarm; 3V Lithium Power Cell Included. 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. Ionization Sensor. 10-year limited warranty. No battery changes for the Life of the Alarm; 3V Lithium Power Cell Included.
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
10. Kidde
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Battery Included, Kidde Smoke Detector, Hardwired with Battery Backup & Interconnect
#adKidde #ad - Easy installation – smoke detector includes a quick connect power harness. Smoke alarm still works during a power failure – unit operates on a 120V power source with 9V battery backup battery included. Ul certified, 10-year limited warranty.More information #ad
One button design allows you to test the smoke detector or temporarily silence a nuisance alarm with the Hush feature. Interconnectable with other hardwired alarms, providing whole-home alarm activation – when one detects smoke, they all sound, alerting everyone in the house.Brand | Kidde #ad |
Manufacturer | Kidde Safety #ad |
Height | 6 Inches |
Length | 2 Inches |
Width | 6 Inches |
Part Number | 21006371 |
Model | P12040 |
Warranty | 5 Year Limited |
More information #ad