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Can connect to other compatible BRK or First Alert smoke detectors, to ensure all alarms will sound when smoke is detected. Faster turnarounds on job sites with the easy-to-install, most-trusted alarms in home safety.
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. Equipped with an ionization sensor, this smoke alarm reliably detects smoke from fast flaming fires and alerts you with an 85 decibel alarm. Emits T3 pattern.

Ionization sensing technology may detect invisible fire particles, associated with flaming fires, quickly and sound an 85dB alarm. Package contains 6 Kidde smoke detectors.

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. Faster turnarounds on job sites with the easy-to-install, most-trusted alarms in home safety.
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. 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.


Protects during a power failure - combo smoke and CO detector operates on a 120VAC power source with 2-AA battery backup. Meets safety standards set by Underwriters Laboratories UL and interconnects with other KN-COSM-IBA models.



Hardwired smoke detectorhardwired interconnected smoke alarm, can connect up to 12 alarms. The alarm battary will last for at least 1 year, providing protection in the event of a power outage. Interconnection testif the fire detectors are interconnected, you only need to press one test button during the weekly test, and the rest can be tested at the same time.

1. Kidde
#ad
Kidde Smoke Detector, Test-Silence Button, Hardwired Smoke Alarm with Battery Backup
#adKidde #ad - Whole home family protection – easily install 1 fire detector on each level of your home & in your bedroom. Protects during a power failure - smoke alarm with battery backup operates on a 120V power source with 9V battery in front-load battery door.More information #ad
Ul certified, 10-year limited warranty. Ionization sensing technology - hardwired smoke detector detects invisible fire particles, 85 decibel alarm alerts of fire. Test-hush feature - silences the smoke detector for approximately 7 minutes.Brand | Kidde #ad |
Manufacturer | Kidde Safety #ad |
Height | 6 Inches |
Length | 6 Inches |
Weight | 0.5 Pounds |
Width | 2 Inches |
Part Number | 21029730 |
Model | i12060A |
Warranty | 5 Year Limited |
More information #ad
2. FIRST ALERT
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First Alert 9120B Smoke Detector, Hardwired Alarm with Battery Backup, 6-Pack
#adFIRST ALERT #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.Can connect to other compatible BRK or First Alert smoke detectors, to ensure all alarms will sound when smoke is detected. Faster turnarounds on job sites with the easy-to-install, most-trusted alarms in home safety.
More information #ad
Note: a loose neutral white wire connection within the home junction box could prompt a device malfunction. 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. 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. Equipped with an ionization sensor, this smoke alarm reliably detects smoke from fast flaming fires and alerts you with an 85 decibel alarm. Emits T3 pattern.
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
3. Kidde
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Hardwired Smoke Alarm with Battery Backup Included, Kidde Smoke Detector, Pack of 6, Interconnect
#adKidde #ad - Large base makes mounting easy, while a front battery pull lets you activate the smoke alarm without removing it from the mounting bracket.Ionization sensing technology may detect invisible fire particles, associated with flaming fires, quickly and sound an 85dB alarm. Package contains 6 Kidde smoke detectors.
More information #ad
Hardwired smoke detector with battery backup included ensures that you'll be alerted to a fire, even during a power outage. Ul listed, 10-year limited warranty. Whole home family protection - place 1 fire alarm on each level of your home & in your bedroom; maximum of 24 Kidde devices can be interconnected.Brand | Kidde #ad |
Manufacturer | Kidde #ad |
Height | 5.6 Inches |
Length | 2.36 Inches |
Weight | 0.6 Pounds |
Width | 1.55 Inches |
Part Number | i12040 |
Model | I12040A |
Warranty | 10 year limited manufacturer |
More information #ad
4. FIRST ALERT
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White, 1 pack , FIRST ALERT BRK SC9120FF Hardwired Smoke and Carbon Monoxide CO Detector with Battery Backup
#adFIRST ALERT #ad - Features an electrochemical carbon monoxide sensing technology as well as an ionization sensor for smoke detection. Can connect to other compatible BRK or First Alert detectors, to ensure all alarms will sound when threat is detected.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. Faster turnarounds on job sites with the easy-to-install, most-trusted alarms in home safety.
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. 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. 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 | 1.9 Inches |
Length | 5.6 Inches |
Weight | 0.25 Pounds |
Width | 5.6 Inches |
Part Number | SC9120B |
Model | SC9120B |
Warranty | 7 Year Limited |
More information #ad
5. Kidde
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Kidde Smoke & Carbon Monoxide Detector, Hardwired, Pack of 2, Interconnect Combination Smoke & CO Alarm with Battery Backup, Voice Alert
#adKidde #ad - Ionization sensing technology - hardwired smoke detector detects invisible fire particles, 85 decibel alarm alerts of fire. Protects during a power failure - combo smoke and CO detector operates on a 120VAC power source with 2-AA battery backup.More information #ad
Fire & co detector in 1 unit with alert modes, that states, LED lights, & voice alarm, "Warning! Carbon Monoxide!", "fire! fire!", or "Low Battery!". Test-hush feature - silences the unit for approximately 9 minutes; tamper-resistant technology deters removal of the unit from the wall or ceiling. Ul certified, 10-year limited warranty.Brand | Kidde #ad |
Manufacturer | Kidde #ad |
Height | 5.6 Inches |
Length | 2.64 Inches |
Weight | 0.75 Pounds |
Width | 1.8 Inches |
Part Number | 900-0114A |
Model | KN-COSM-IBA |
Warranty | 10 year limited manufacturer |
More information #ad
6. Kidde
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Interconnect Combination Smoke & CO Alarm with Battery Backup, Hardwired, Voice Alert, Kidde Smoke & Carbon Monoxide Detector
#adKidde #ad - Fire & co detector in 1 unit with alert modes, & voice alarm, LED lights, that states, "Fire! Fire!", "Warning! Carbon Monoxide!", or "Low Battery!". Ul certified, 10-year limited warranty.Protects during a power failure - combo smoke and CO detector operates on a 120VAC power source with 2-AA battery backup. Meets safety standards set by Underwriters Laboratories UL and interconnects with other KN-COSM-IBA models.
More information #ad
Ionization sensing technology - hardwired smoke detector detects invisible fire particles, 85 decibel alarm alerts of fire. 120v ac, all kidde brand hard wired smoke alarms are interconnectable with the KN-COSM-IBA. Test-hush feature - silences the unit for approximately 9 minutes; tamper-resistant technology deters removal of the unit from the wall or ceiling.Brand | Kidde #ad |
Manufacturer | Kidde Safety #ad |
Height | 6 Inches |
Length | 2 Inches |
Weight | 1 Pounds |
Width | 6 Inches |
Part Number | 21026041 |
Model | KN-COSM-IBA |
Warranty | 10 Year Limited |
More information #ad
7. FIRST ALERT
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White, First Alert BRK 7010B Hardwired Smoke Detector with Photoelectric Sensor and Battery Backup
#adFIRST ALERT #ad - Inter connectable with BRK and first alert hardwired smoke and carbon monoxide alarms. 120 volt hardwire smoke alarm with photoelectric sensor and battery backup. Features convenient 9 volt battery backup, silence/test button, dust cover, 85 decibel alarm.More information #ad
Intuitive latching alarm indicator identifies which unit triggered alarm. 85 decibel alarm. 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.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
8. Kidde
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Hardwired Smoke Alarm with Lithium Battery Backup, Interconnect, Kidde Smoke Detector, Test-Silence Button
#adKidde #ad - Test-hush feature - silences the unit for approximately 9 minutes. Ionization sensing technology - hardwired smoke detector detects visible fire particles, 85 decibel alarm alerts of fire. Whole home family protection - place 1 fire detector on each level of your home & in your bedroom - maximum of 24 Kidde smoke or CO detectors can be interconnected in a multiple stations.More information #ad
Ul certified, 10-year limited warranty. Protects during a power failure - smoke alarm operates on a 120V power source with 3V lithium battery backup.Brand | Kidde #ad |
Manufacturer | Kidde Safety #ad |
Height | 5.5 Inches |
Length | 5.5 Inches |
Weight | 0.45 Pounds |
Width | 1.75 Inches |
Part Number | 21029760 |
Model | i12010S |
Warranty | 10 year limited warranty |
More information #ad
9. SITERWELL
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GS517 , 4 Packs, Fire Alarm with Test/Silence Button, Siterwell Hardwired Interconnected Smoke Detector, Photoelectric Smoke Alarm with 9V Backup Battery
#adSITERWELL #ad - It is more precise and stable than wireless interconnection. Size & capability 5” diameter x 1. 6” depth, ul217 certified. Backup batterythe fire alarm is powered by a 120V power and a 9V backup battery.Hardwired smoke detectorhardwired interconnected smoke alarm, can connect up to 12 alarms. The alarm battary will last for at least 1 year, providing protection in the event of a power outage. Interconnection testif the fire detectors are interconnected, you only need to press one test button during the weekly test, and the rest can be tested at the same time.
More information #ad
Silence mode worried about false positives? The smoke detector has a silence button, you can hold it down for five seconds to calm it. Home fires start every 83 seconds, the fire detector can quickly identify the fire and allow the family to flee quickly.Brand | SITERWELL #ad |
Manufacturer | SITERWELL ELECTRONICS CO.,LIMITED #ad |
Part Number | GS517 |
Model | GS517 |
More information #ad
10. Kidde
#ad
Hardwired, Kidde Smoke & Carbon Monoxide Detector, Interconnect Combination Smoke & CO Alarm with Battery Backup, Voice Alert
#adKidde #ad - Test-hush feature - silences the unit for approximately 8 minutes; tamper-resistant technology deters removal of the unit from the wall or ceiling. Ul certified, 10-year limited warranty. Fire & co detector in 1 unit with alert modes, "warning! carbon Monoxide!", "Fire! Fire!", LED lights, & voice alarm, that states, or "Low Battery!".More information #ad
Photoelectric sensor technology - hardwired smoke detector detects visible fire particles, 85 decibel alarm alerts of fire. Protects during a power failure - combo smoke and CO detector operates on a 120V power source with 9V front-loading battery backup.Brand | Kidde #ad |
Manufacturer | Kidde Safety #ad |
Height | 1.85 Inches |
Length | 5.79 Inches |
Weight | 0.7 Pounds |
Width | 5.79 Inches |
Part Number | 21029735 |
Model | KN-COPE-IC |
Warranty | 7 year limited |
More information #ad