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Or “warning: carbon monoxide” so you know why the smoke & carbon monoxide detector is sounding. Hardwired alarm with tamper proof backup battery – to help protect your home and family during power outages, eliminates the need for battery replacement.

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.
Faster turnarounds on job sites with the easy-to-install, most-trusted alarms in home safety. 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 3-pack of hardwired smoke and carbon monoxide alarm; The battery backup means constant monitoring, even if there's a power failure. 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.
Features an electrochemical carbon monoxide sensing technology as well as an ionization sensor that detects the fine particles of a fast-burning fire. 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.

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.

Product 1: test-hush feature - silences the unit for approximately 9 minutes; tamper-resistant technology deters removal of the unit from the wall or ceiling. Product 2: still works during power failures - smoke alarm with battery backup operates on a 120V power source with 9V battery included.
Product 1: protects during a power failure - combo smoke and CO detector operates on a 120VAC power source with 2-AA battery backup. Product 2: test/hush button – it’s simple to test or hush false alarms by pressing the button right on the face of the device. Product 1: ionization sensing technology - hardwired smoke detector detects invisible fire particles, 85 decibel alarm alerts of fire.


8 seconds. 10 year battery operated: this combination smoke detector and carbon monoxide detector alarm provides 10 years of continuous power with a built-in lithium battery; provides continuous monitoring of smoke and CO levels, even if there's a power failure; an end-of-life signal will let you know when it’s time to replace the unit for safety.
No hardwired anymore. Combo smoke and co detecor: 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. Test/slience button: tests the unit for proper operation and resets the carbon monoxide alarm, Alarm.

1. Kidde
#ad
Interconnect, Kidde Smoke Detector, Test-Silence Button, Hardwired Smoke Alarm with Lithium Battery Backup
#adKidde #ad - Ionization sensing technology - hardwired smoke detector detects visible fire particles, 85 decibel alarm alerts of fire. Test-hush feature - silences the unit for approximately 9 minutes. Ul certified, 10-year limited warranty.More information #ad
Protects during a power failure - smoke alarm operates on a 120V power source with 3V lithium battery backup. Alarm Memory Indicator. 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.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
2. Kidde
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Voice Warning, Kidde Smoke & Carbon Monoxide Detector, Hardwired with Lithium Battery Backup
#adKidde #ad - Ul certified, 10-year limited warranty. Hush feature silences nuisance or “false” alarms – with just the push of a button on the alarm itself. 85db alarm & voice warnings – “fire.Or “warning: carbon monoxide” so you know why the smoke & carbon monoxide detector is sounding. Hardwired alarm with tamper proof backup battery – to help protect your home and family during power outages, eliminates the need for battery replacement.
More information #ad
Interconnect alarms – allows you to connect up to 24 Kidde devices of this type, giving you trusted detection throughout your home. Advanced technology – smoke and carbon monoxide detector combines ionization & electrochemical sensors to detect invisible fire particles & CO gas.Brand | Kidde #ad |
Manufacturer | Kidde Safety #ad |
Height | 5.5 Inches |
Length | 5.5 Inches |
Weight | 1 Pounds |
Width | 1.5 Inches |
Part Number | 21029756 |
Model | i12010SCO |
Warranty | 10 year limited warranty |
More information #ad
3. FIRST ALERT
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FIRST ALERT BRK 9120LBL Hardwired Smoke Detector with Battery Backup
#adFIRST ALERT #ad - 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.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.
More information #ad
Emits T3 Pattern. 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. Faster turnarounds on job sites with the easy-to-install, most-trusted alarms in home safety. 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.
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
4. Kidde
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Kidde 21026514 Worry-Free Hardwire Interconnect Ionization Sensor Smoke Alarm, white
#adKidde #ad - Ul 217 listed. Single test/hush button. Ionization sensing technology. 360 degree mounting plate with tamper resist feature. Sealed in 10 year lithium battery backup.More information #ad
Brand | Kidde #ad |
Manufacturer | Kidde Safety #ad |
Height | 5.5 Inches |
Length | 5.5 Inches |
Weight | 0.9 Pounds |
Width | 1.75 Inches |
Part Number | 21010408 |
Model | i12010S |
Warranty | 10-year limited warranty |
More information #ad
5. FIRST ALERT
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White, FIRST ALERT BRK SC9120B-3 Hardwired Smoke and Carbon Monoxide CO Detector with Battery Backup. 3-Pack
#adFIRST ALERT #ad - Dust cover. Faster turnarounds on job sites with the easy-to-install, most-trusted alarms in home safety. 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 3-pack of hardwired smoke and carbon monoxide alarm; The battery backup means constant monitoring, even if there's a power failure. 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
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 that detects the fine particles of a fast-burning fire. 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 | 0.7 Pounds |
Width | 5.6 Inches |
Part Number | SC9120BFF-3 |
Model | BRK SC9120B-3 |
More information #ad
6. Kidde
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Interconnect, Pack of 6, Hardwired Smoke Alarm with Battery Backup Included, Kidde Smoke Detector
#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.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.
More information #ad
Ionization sensing technology may detect invisible fire particles, associated with flaming fires, quickly and sound an 85dB alarm. Hardwired smoke detector with battery backup included ensures that you'll be alerted to a fire, even during a power outage. Package contains 6 Kidde smoke detectors.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
7. Kidde
#ad
Kidde Smoke & Carbon Monoxide Detector, Pack of 6, Hardwired, Interconnect Combination Smoke & CO Alarm, Test-Silence Button, Voice Alert & Smoke Detector, Hardwired Smoke Alarm with Battery Backup
#adKidde #ad - Product 1: fire & co detector in 1 unit with alert modes, that states, & voice alarm, "Fire! Fire!", "Warning! Carbon Monoxide!", LED lights, or "Low Battery!". Product 2: front-load battery door – For quick battery replacements.Product 1: test-hush feature - silences the unit for approximately 9 minutes; tamper-resistant technology deters removal of the unit from the wall or ceiling. Product 2: still works during power failures - smoke alarm with battery backup operates on a 120V power source with 9V battery included.
More information #ad
Product 2: ionization sensing technology - hardwired smoke detector senses invisible fire particles, 85 decibel alarm alerts of fire. Product 1: protects during a power failure - combo smoke and CO detector operates on a 120VAC power source with 2-AA battery backup. Product 2: test/hush button – it’s simple to test or hush false alarms by pressing the button right on the face of the device. Product 1: ionization sensing technology - hardwired smoke detector detects invisible fire particles, 85 decibel alarm alerts of fire.
Brand | Kidde #ad |
More information #ad
8. Kidde
#ad
Test-Silence Button, Front-Load Battery Door, Hardwired Smoke Alarm with Battery Backup, Kidde Smoke Detector
#adKidde #ad - Test-hush button - it’s simple to test or hush false alarms by pressing the button right on the face of the device. Ul certified, 10-year limited warranty. Still works during power failures - smoke alarm with battery backup operates on a 120V power source with 9V battery included.More information #ad
Easy to install & front-load battery door makes for quick battery replacements. Ionization sensing technology - hardwired smoke detector senses invisible fire particles, 85 decibel alarm alerts of fire.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
9. Lecoolife
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Kitchen, Travel Portable Photoelectric Fire Co Alarm for Home, 3 Pack 10 Year Battery Operated Smoke Detector and Carbon Monoxide Detector
#adLecoolife #ad - Practical lcd display: clearly indicates real-time carbon monoxide co concentration in the surrounding air, the screen will be backlit blue, as well as the remaining battery life and working status of the alarm; if a CO concentration of 30-999 ppm exists for a certain time period, and the LED indicator will flash red 4 times every 5.8 seconds. 10 year battery operated: this combination smoke detector and carbon monoxide detector alarm provides 10 years of continuous power with a built-in lithium battery; provides continuous monitoring of smoke and CO levels, even if there's a power failure; an end-of-life signal will let you know when it’s time to replace the unit for safety.
More information #ad
A loud 85-decibel alarm sounds when carbon monoxide, and Smoke levels begin to rise, Easy to Install and Use: The alarm can easily install with mounting bracket. No hardwired anymore. Combo smoke and co detecor: 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. Test/slience button: tests the unit for proper operation and resets the carbon monoxide alarm, Alarm.
Brand | Lecoolife #ad |
Manufacturer | Lecoolife #ad |
Height | 1.5 Inches |
Length | 4 Inches |
Width | 4 Inches |
Part Number | combo 0804 |
Model | combo 0804 |
More information #ad
10. FIRST ALERT
#ad
First Alert BRK 7010BFF-6 Hardwired Smoke Detector with Photoelectric Sensor and Battery Backup, 6-Pack , White
#adFIRST ALERT #ad - Backed by 10-year limited and tested to meet UL 217 standards. Intuitive latching alarm indicator identifies which unit triggered alarm. 6 pack of 120-volt hardwire smoke alarms with photoelectric sensor and battery backup.More information #ad
Features convenient 9 volt battery backup, dust cover, silence/test button, 85-decibel alarm. Inter-connectable with BRK and First Alert hardwired smoke and Carbon monoxide alarms. Faster turnarounds on job sites with the easy-to-install, most-trusted alarms in home safety. 85 decibel alarm.Brand | FIRST ALERT #ad |
Manufacturer | First Alert #ad |
Height | 16.5 Inches |
Length | 6 Inches |
Weight | 0.7 Pounds |
Width | 5 Inches |
Part Number | 7010BFF-6 |
Model | 7010BFF-6 |
More information #ad