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Emits T3 Pattern. Equipped with a dual photoelectric and ionization smoke sensor to quickly detect both fast burning and smoldering fires. Optipath 360 patented technology provides 360 degrees of access to the smoke alarm. 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.


10-year battery life: this combination smoke alarm and carbon monoxide 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.
High accuracy and sensitivity: x-sense carbon monoxide fire alarm is equipped with combination photoelectric smoke and electrochemical CO sensors that work independently of each other; instantly notifies you when dangerous smoke or CO concentration is detected; provides the ultimate protection from 2 deadly threats, all contained in 1 unit. 8 seconds and the red LED flashes with the alarm sound.


Simple installation & operation: this battery-operated unit can be installed quickly and effortlessly without an electrician; one-button operation allows you to test and silence the alarm with ease.
Premium quality: made from a premium pc material, a 5-year warranty, ensuring exceptional quality and protection; approved by the ETL and meets the UL 217 and UL 2034 safety standards;comes with a 60-day money-back guarantee, and lifetime customer support. Combination smoke and carbon monoxide Alarm: One alarm to protect against 2 deadly threats, including smoke and carbon monoxide; accurately detects carbon monoxide from any potential source.

Complies with all current 10 year legislation in U. S. Loud 85 decibel siren sounds to alert you to danger. Equipped with a dual photoelectric and ionization smoke sensor to quickly detect both fast burning and smoldering fires.


Quick & easy installation with guaranteed quality: requires no rewiring; easy to mount on any wall or ceiling with the included mounting bracket, screws and anchor plugs; certified to meet the UL 217 & UL 2034 safety standards for your peace of mind and absolute confidence in our product.
10-year battery & 10-year sensor: this smoke and carbon monoxide alarm provides 10 years of continuous power with a built-in lithium battery, saving on energy while remaining eco-friendly; saves you from constantly having to change batteries; an end-of-life signal will let you know when it's time to replace the unit for safety.

Intelligent technology – smoke and carbon monoxide detector combines ionization & electrochemical sensors to detect invisible fire particles & CO gas; 85dB alarm and voice warning sound when hazard is detected.

Features an electrochemical carbon monoxide sensing technology as well as an ionization sensor that detects the fine particles of a fast-burning fire.
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. 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.
1. FIRST ALERT
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1-Pack, First Alert BRK 3120B Hardwired Photoelectric and Ionization Smoke Alarm with Battery Backup, Dual Sensing Smoke Alarm
#adFIRST ALERT #ad - Faster turnarounds on job sites with the easy-to-install, most-trusted alarms in home safety. Two latching features help indicate a low battery or the originating alarm in a system.Emits T3 Pattern. Equipped with a dual photoelectric and ionization smoke sensor to quickly detect both fast burning and smoldering fires. Optipath 360 patented technology provides 360 degrees of access to the smoke alarm. 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
Temperature range: 40°f 4°c to 100°F 38°C. Photoelectric and ionization sensors provide comprehensive fire detection. Hardwired alarm includes battery backup for power outages. A single button makes alarm easy to test monthly or silence during a false alarm.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
2. 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. Model number: Pi9010 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
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
3. X-Sense
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Auto-Check, SC03, X-Sense 10-Year Battery Not Hardwired Combination Smoke and Carbon Monoxide Detector Alarm, Dual Sensor Smoke CO Alarm Complies with UL 217 & UL 2034 Standards
#adX-Sense #ad - Alarm types for more convenient: different alarm patterns of this carbon monoxide alarm and smoke alarm tell you it is either smoke or carbon monoxide is detected without checking the LCD display; smoke alarm: delivers 3 long beeps every 1. 5 seconds and the red led flashes with the alarm sound; CO alarm: delivers 4 quick beeps every 5. Easy installation with quality: x-sense smoke carbon monoxide alarm combo requires no rewiring; easy to mount on any wall or ceiling without an electrician; all X-SENSE carbon monoxide alarm and smoke alarm are rigorously tested to meet UL 217 and UL 2034 safety standards; comes with a lifetime customer support.10-year battery life: this combination smoke alarm and carbon monoxide 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
Simple to use: the test/silence button of this smoke alarm carbon monoxide alarm enables you to test the alarm weekly, and to easily silence the alarm when false alarms occur; malfunction and low battery warnings allow you to easily know the working status of the alarm; in case of an emergency, an alarm tone of over 85 dB will instantly alert the entire household, even those in sleep. High accuracy and sensitivity: x-sense carbon monoxide fire alarm is equipped with combination photoelectric smoke and electrochemical CO sensors that work independently of each other; instantly notifies you when dangerous smoke or CO concentration is detected; provides the ultimate protection from 2 deadly threats, all contained in 1 unit. 8 seconds and the red LED flashes with the alarm sound.
Brand | X-Sense #ad |
Manufacturer | X-Sense #ad |
Height | 2 Inches |
Length | 5.7 Inches |
Weight | 0.68 Pounds |
Width | 5.7 Inches |
Part Number | SC03 |
Model | SC03 |
Warranty | 60-day money-back guarantee, 5-year quality warranty, and lifetime technical support |
More information #ad
4. Kidde
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Kidde PI2010 Hardwired Dual Photoelectric and Ionization Sensor Smoke Alarm with Battery Backup
#adKidde #ad - Test/reset button tests units electronic circuitry and horn. Audio alarm:85dB at 10ft. Dual sensor contains both a photoelectric and ionization sensor providing dual sensor protection in your home.More information #ad
Hush feature temporarily silences nuisance alarms. 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.Brand | Kidde #ad |
Manufacturer | Kidde Safety #ad |
Height | 2.8 Inches |
Length | 7.8 Inches |
Weight | 0.9 Pounds |
Width | 7.3 Inches |
Part Number | 21026061 |
Model | 21026061 - N |
More information #ad
5. X-Sense
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Compliant with UL 217 & UL 2034 Standards, X-Sense 2-in-1 Smoke and Carbon Monoxide Detector Alarm Not Hardwired, 10-Year Battery-Operated Dual Sensor Fire & CO Alarm, Pack of 3, SC06
#adX-Sense #ad - 10-year battery-operated smoke and co alarm: a sealed lithium battery enables the unit to keep you and your family safe and sound for up to a decade with no need to replace batteries frequently; a low battery warning lets you know the unit is coming to its end of life.Simple installation & operation: this battery-operated unit can be installed quickly and effortlessly without an electrician; one-button operation allows you to test and silence the alarm with ease.
More information #ad
Faster response to dangers with loud 85 dB Alarm: Upgraded photoelectric and electrochemical sensors significantly increase the sensitivity of the alarm for a faster response time while minimizing false alarms. Premium quality: made from a premium pc material, a 5-year warranty, ensuring exceptional quality and protection; approved by the ETL and meets the UL 217 and UL 2034 safety standards;comes with a 60-day money-back guarantee, and lifetime customer support. Combination smoke and carbon monoxide Alarm: One alarm to protect against 2 deadly threats, including smoke and carbon monoxide; accurately detects carbon monoxide from any potential source.
Brand | X-Sense #ad |
Manufacturer | X-Sense #ad |
Height | 6.1 Inches |
Length | 8 Inches |
Weight | 2.9 Pounds |
Width | 6.3 Inches |
Part Number | SC06 |
Model | SC06 |
Warranty | 60-day money-back guarantee, 5-year quality warranty, and lifetime technical support |
More information #ad
6. FIRST ALERT
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SA3210, FIRST ALERT Dual Sensor Smoke and Fire Alarm
#adFIRST ALERT #ad - 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. States/cities where required.Complies with all current 10 year legislation in U. S. Loud 85 decibel siren sounds to alert you to danger. Equipped with a dual photoelectric and ionization smoke sensor to quickly detect both fast burning and smoldering fires.
More information #ad
Meets ul217 standards and complies with legislative requirements for 10 year battery operated smoke alarms. To ensure complete protection make sure to place one on each level of your home and in each bedroom. 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 Inches |
Length | 2 Inches |
Weight | 0.65 Pounds |
Width | 5 Inches |
Part Number | SA3210 |
Model | SA3210 |
Warranty | 10 Year Limited Warranty |
More information #ad
7. Kidde
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Hardwired, Voice Alert, Pack of 2, Kidde Smoke & Carbon Monoxide Detector, Interconnect Combination Smoke & CO Alarm with Battery Backup
#adKidde #ad - Protects during a power failure - combo smoke and CO detector operates on a 120VAC power source with 2-AA battery backup. Test-hush feature - silences the unit for approximately 9 minutes; tamper-resistant technology deters removal of the unit from the wall or ceiling.More information #ad
Fire & co detector in 1 unit with alert modes, "fire! Fire!", "Warning! Carbon Monoxide!", & voice alarm, that states, led lights, or "Low Battery!". Ionization sensing technology - hardwired smoke detector detects invisible fire particles, 85 decibel alarm alerts of fire. 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
8. X-Sense
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SC01, X-Sense 10-Year Battery Smoke and Carbon Monoxide Alarm with Display, Auto-Check, Dual Sensor Smoke CO Alarm Complies with UL 217 & UL 2034 Standards, 5-Pack
#adX-Sense #ad - 2-in-1 accurate, and instantly notifies you when dangerous smoke or co concentration is detected while minimizing false alarms; provides the ultimate protection from 2 deadly threats, reliable & highly sensitive alarm: equipped with both photoelectric smoke sensor and electrochemical CO sensor that work independently of each other; every second counts; detects both fast and slow-burning fires, all contained in 1 unit.Quick & easy installation with guaranteed quality: requires no rewiring; easy to mount on any wall or ceiling with the included mounting bracket, screws and anchor plugs; certified to meet the UL 217 & UL 2034 safety standards for your peace of mind and absolute confidence in our product.
More information #ad
Practical lcd display: clearly indicates real-time carbon monoxide co concentration in the surrounding air, 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, the screen will be backlit blue, and the LED indicator will flash red 4 times every 5.8 seconds. Simple to use: test/silence button enables you to test the alarm weekly, and to easily silence the alarm when false alarms occur; malfunction and low battery warnings allow you to easily know the working status of the alarm; in case of an emergency, instantly alerting the entire household, an alarm tone of over 85 dB will sound throughout your entire home, even those in sleep. 10-year battery & 10-year sensor: this smoke and carbon monoxide alarm provides 10 years of continuous power with a built-in lithium battery, saving on energy while remaining eco-friendly; saves you from constantly having to change batteries; an end-of-life signal will let you know when it's time to replace the unit for safety.
Brand | X-Sense #ad |
Manufacturer | X-Sense #ad |
Height | 2 Inches |
Length | 5.7 Inches |
Weight | 4.54 Pounds |
Width | 5.7 Inches |
Part Number | SC01-1-5 |
Model | SC01 |
Warranty | 60-day money-back guarantee, 5-year quality warranty, and lifetime technical support |
More information #ad
9. Kidde
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Voice Warning, Hardwired with 10-Year Battery Backup, Kidde Smoke & Carbon Monoxide Detector
#adKidde #ad - Led lights indicate the alarm's status, with a voice warning to indicate which type of threat is present; a Hush feature silences nuisance alarms, while the end-of-life alert lets you know when it's time to replace the unit.Intelligent technology – smoke and carbon monoxide detector combines ionization & electrochemical sensors to detect invisible fire particles & CO gas; 85dB alarm and voice warning sound when hazard is detected.
More information #ad
Ul certified, 10-year limited warranty. Hardwired alarm contains a 10-year tamper proof backup battery to protect your home and family during power outages, eliminates the need for battery replacement. Smart interconnect allows you to connect up to 24 Kidde devices, giving you trusted protection throughout your home.Brand | Kidde #ad |
Manufacturer | Kidde Safety #ad |
Height | 5.5 Inches |
Length | 5.5 Inches |
Width | 1.5 Inches |
Part Number | 21029756 |
Model | i12010SCO |
Warranty | 10 year limited warranty |
More information #ad
10. FIRST ALERT
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FIRST ALERT BRK SC9120B-3 Hardwired Smoke and Carbon Monoxide CO Detector with Battery Backup. 3-Pack , White
#adFIRST ALERT #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. Dust cover. Can connect to other compatible BRK or First Alert detectors, to ensure all alarms will sound when threat is detected.Features an electrochemical carbon monoxide sensing technology as well as an ionization sensor that detects the fine particles of a fast-burning fire.
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. Faster turnarounds on job sites with the easy-to-install, most-trusted alarms in home safety. 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. 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.
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