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Combination Smoke/Carbon Monoxide Alarms

Get two times the protection from one reliable alarm.

Carbon monoxide and fire can make for a deadly duo, but Kidde makes it easier to protect yourself against both. Combination smoke and carbon monoxide alarms have sensing technologies that work together to detect fires and the odorless, colorless, tasteless gas known as CO – the silent killer. Each combination alarm includes the company’s patented Nighthawk™ electrochemical CO sensor.

 
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MSRP* The price displayed here is a suggested retail price for this model. Please select ‘Where to Buy’ to see the most current prices offered.info
Power Source info
Power Source Smoke alarms are powered by battery or by your home's electrical system. If the smoke alarm is powered by battery, it runs on either a disposable 9-volt battery or a non-replaceable 10-year sealed lithium battery. Alarms that receive their power from your home's electrical system (hardwired alarms) usually have a back-up battery that will need to be replaced once or twice a year.info
Safety Features info
Safety Features <p>There are many special features that can help protect you and your home, or make your safety products easier to maintain and operate. Many of these features are not well known by their name, so to learn more about specific features of a model, select it and view its detail page.</p> <br /> 'Best' models include many safety and convenience features. <br /> 'Better' models include a few safety and convenience features. <br /> 'Good' models include basic safety features.info
Product Price Range
Sensor info
Sensor There are two types of sensing technology available. Ionization sensing alarms may detect invisible fire particles (associated with flaming fires) sooner than photoelectric alarms. Photoelectric sensing alarms may detect visible particles (associated with smoldering fires) sooner than ionization alarms. Kidde strongly recommends that both ionization and photoelectric smoke alarms be installed to help insure maximum detection of the various types of fire that can occur within the home.info
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10-Year Battery Powered- Combination CO/Smoke Alarms
Combination alarms offer protection from two deadly threats in one unit. Combo alarms can save space, and you'll only need to change and test batteries in one device rather than two. 10-year sealed battery alarms offer a variety of benefits to the millions of Americans who rely on continuous battery-powered smoke and carbon monoxide detection in their homes. The alarms are powered by sealed, long-life lithium batteries for 10 years (the life of the alarm), meaning they are always on.
Combination alarms offer protection from two deadly threats in one unit. Combo alarms can save space, and you'll only need to change and test batteries in one device rather than two. 10-year sealed battery alarms offer a variety of benefits to the millions of Americans who rely on continuous battery-powered smoke and carbon monoxide detection in their homes. The alarms are powered by sealed, long-life lithium batteries for 10 years (the life of the alarm), meaning they are always on.

Power Source: 10-Year Battery

Safety Features: Best

MSRP*: $64.99

Worry-Free Combination Smoke and Carbon Monoxide Alarm with Sealed Lithium Battery Power P3010CU https://www.kidde.com/home-safety/en/us/products/fire-safety/combination-smoke-co-alarms/p3010cu/ https://images.carriercms.com/image/upload/w_350,dpr_auto,c_limit,q_auto,f_auto/v1549711984/kidde/products/smoke-alarms/kidde-smoke-alarm-carbon-monoxide-alarm-battery-P3010CU.png 10-Year Battery Photoelectric Best $64.99

Power Source: 10-Year Battery

Safety Features: Better

MSRP*: $54.99

Worry-Free Kitchen Sealed Lithium Battery Power Smoke/CO Alarm P3010K-CO https://www.kidde.com/home-safety/en/us/products/fire-safety/combination-smoke-co-alarms/p3010k-co/ https://images.carriercms.com/image/upload/w_350,dpr_auto,c_limit,q_auto,f_auto/v1549711984/kidde/products/smoke-alarms/kidde-smoke-alarm-carbon-monoxide-alarm-battery-P3010K-CO-angled.jpg 10-Year Battery Photoelectric Better $54.99
Battery Operated - Combination CO/Smoke Alarms
Combination alarms offer protection from two deadly threats in one unit. Many models offer an exclusive voice warning system that eliminates confusion and clearly warns you and your family of a fire or carbon monoxide danger. Combo alarms can save space, and you'll only need to change and test batteries in one device rather than two. Kidde has been making Carbon Monoxide (CO) alarms with electrochemical sensing technology for years. All of Kidde’s CO alarm products – from basic units to premium CO alarms – include the company’s patented Nighthawk™ electrochemical CO sensor. Kidde battery-powered alarms are easy to install, and keep working even if there is a power outage.
Combination alarms offer protection from two deadly threats in one unit. Many models offer an exclusive voice warning system that eliminates confusion and clearly warns you and your family of a fire or carbon monoxide danger. Combo alarms can save space, and you'll only need to change and test batteries in one device rather than two. Kidde has been making Carbon Monoxide (CO) alarms with electrochemical sensing technology for years. All of Kidde’s CO alarm products – from basic units to premium CO alarms – include the company’s patented Nighthawk™ electrochemical CO sensor. Kidde battery-powered alarms are easy to install, and keep working even if there is a power outage.

Power Source: Battery

Safety Features: Best

MSRP*: $49.97

TruSense Battery Powered Combo Smoke & Carbon Monoxide Alarm 2070-VDSCR https://www.kidde.com/home-safety/en/us/products/fire-safety/combination-smoke-co-alarms/2070-vdscr/ https://images.carriercms.com/image/upload/w_350,dpr_auto,c_limit,q_auto,f_auto/v1566477607/kidde/products/smoke-alarms/kidde-smoke-alarm-carbon-monoxide-alarm-battery-2070-VDSCR-angled.jpg Battery TruSense Best $49.97

Power Source: Battery

Safety Features: Better

MSRP*: $47.99

Kidde Battery Operated Combination Carbon Monoxide & Photoelectric Smoke Alarm KN-COPE-D https://www.kidde.com/home-safety/en/us/products/fire-safety/combination-smoke-co-alarms/kn-cope-d/ https://images.carriercms.com/image/upload/w_350,dpr_auto,c_limit,q_auto,f_auto/v1549711987/kidde/products/smoke-alarms/kidde-smoke-alarm-carbon-monoxide-alarm-battery-photoelectric-KN-COPE-D.jpg Battery Photoelectric Better $47.99

Power Source: Battery

Safety Features: Good

MSRP*: $44.99

Kidde Battery Operated Combination Smoke & Carbon Monoxide Alarm KN-COSM-BA https://www.kidde.com/home-safety/en/us/products/fire-safety/combination-smoke-co-alarms/kn-cosm-ba/ https://images.carriercms.com/image/upload/w_350,dpr_auto,c_limit,q_auto,f_auto/v1549711984/kidde/products/smoke-alarms/kidde-smoke-alarm-carbon-monoxide-alarm-battery-KN-COSM-BA.jpg Battery Ionization Good $44.99

Power Source: Battery

Safety Features: Better

MSRP*: $48.99

Kidde Intelligent Alarm Battery Operated Combination Smoke & Carbon Monoxide Alarm KN-COSM-XTR-BA https://www.kidde.com/home-safety/en/us/products/fire-safety/combination-smoke-co-alarms/kn-cosm-xtr-ba/ https://images.carriercms.com/image/upload/w_350,dpr_auto,c_limit,q_auto,f_auto/v1549711984/kidde/products/smoke-alarms/kidde-smoke-alarm-carbon-monoxide-alarm-battery-KN-COSM-BA.jpg Battery Ionization Better $48.99
Hardwired AC Operated - Combination CO/Smoke Alarms
Combination alarms offer protection from two deadly threats in one unit. Many models offer an exclusive voice warning system that eliminates confusion and clearly warns you and your family of a fire or carbon monoxide danger. Combo alarms can save space, and you'll only need to change and test batteries in one device rather than two. Kidde has been making CO alarms with electrochemical sensing technology for years. All of Kidde's CO alarm products – from basic units to premium CO alarms – include the company’s patented Nighthawk™ electrochemical CO sensor. Kidde alarms can be wired into an existing Kidde interconnected system. Most models also include battery backup and a few even provide 10-year sealed lithium battery backup.
Combination alarms offer protection from two deadly threats in one unit. Many models offer an exclusive voice warning system that eliminates confusion and clearly warns you and your family of a fire or carbon monoxide danger. Combo alarms can save space, and you'll only need to change and test batteries in one device rather than two. Kidde has been making CO alarms with electrochemical sensing technology for years. All of Kidde's CO alarm products – from basic units to premium CO alarms – include the company’s patented Nighthawk™ electrochemical CO sensor. Kidde alarms can be wired into an existing Kidde interconnected system. Most models also include battery backup and a few even provide 10-year sealed lithium battery backup.

Power Source: Hardwired

Safety Features: Best

MSRP*: $69.97

TruSense AC Hardwired Combo Smoke & Carbon Monoxide Alarm 2070-VASCR https://www.kidde.com/home-safety/en/us/products/fire-safety/combination-smoke-co-alarms/2070-vascr/ https://images.carriercms.com/image/upload/w_350,dpr_auto,c_limit,q_auto,f_auto/v1566411667/kidde/products/smoke-alarms/kidde-smoke-alarm-carbon-monoxide-alarm-hardwired-2070-VASCR-angled.jpg Hardwired TruSense Best $69.97

Power Source: Hardwired

Safety Features: Best

MSRP*: $69.99

Worry-Free AC Hardwired Combination Smoke & Carbon Monoxide Alarm Sealed Lithium Battery Backup i12010SCO https://www.kidde.com/home-safety/en/us/products/fire-safety/combination-smoke-co-alarms/i12010sco/ https://images.carriercms.com/image/upload/w_350,dpr_auto,c_limit,q_auto,f_auto/v1549711977/kidde/products/smoke-alarms/kidde-smoke-alarm-hardwired-battery-backup-I12010S.jpg Hardwired Ionization Best $69.99

Power Source: Hardwired

Safety Features: Better

MSRP*: $65.99

Firex™ AC Hardwired Combination Carbon Monoxide & Photoelectric Smoke Alarm KN-COPE-IC https://www.kidde.com/home-safety/en/us/products/fire-safety/combination-smoke-co-alarms/kn-cope-ic/ https://images.carriercms.com/image/upload/w_350,dpr_auto,c_limit,q_auto,f_auto/v1557838903/kidde/products/smoke-alarms/kidde-smoke-alarm-carbon-monoxide-alarm-hardwired-photoelectric-KN-COPE-IC.jpg Hardwired Photoelectric Better $65.99

Power Source: Hardwired

Safety Features: Good

MSRP*: $61.99

KN-COSM-IBA - Hardwired Combination Carbon Monoxide & Smoke Alarm KN-COSM-IBA https://www.kidde.com/home-safety/en/us/products/fire-safety/combination-smoke-co-alarms/kn-cosm-iba/ https://images.carriercms.com/image/upload/w_350,dpr_auto,c_limit,q_auto,f_auto/v1549711987/kidde/products/smoke-alarms/kidde-smoke-alarm-carbon-monoxide-alarm-hardwired-KN-COSM-IBA.jpg Hardwired Ionization Good $61.99

Power Source: Hardwired

Safety Features: Best

MSRP*: $150

120V AC 3-in-1 LED Strobe and 10-Year Combo Smoke / CO Alarm P4010ACLEDSCO-2 https://www.kidde.com/home-safety/en/us/products/fire-safety/combination-smoke-co-alarms/p4010acledsco-2/ https://images.carriercms.com/image/upload/w_350,dpr_auto,c_limit,q_auto,f_auto/v1557837782/kidde/products/smoke-alarms/kidde-smoke-alarm-led-stroke-hardwired-P4010ACLEDS-2.jpg Hardwired Photoelectric Best $150

Power Source: Hardwired

Safety Features: Better

MSRP*: $67.00

AC Hardwired Combination Carbon Monoxide & Photoelectric Smoke Alarm P4010ACSCO https://www.kidde.com/home-safety/en/us/products/fire-safety/combination-smoke-co-alarms/p4010acsco/ https://images.carriercms.com/image/upload/w_350,dpr_auto,c_limit,q_auto,f_auto/v1549711987/kidde/products/smoke-alarms/kidde-smoke-alarm-carbon-monoxide-alarm-hardwired-P4010ACSCO-W.jpg Hardwired Photoelectric Better $67.00
Intelligent Wire-Free Alarms
Kidde now offers a series of smoke and combination smoke & carbon monoxide alarms that can be interconnected wirelessly.
Kidde now offers a series of smoke and combination smoke & carbon monoxide alarms that can be interconnected wirelessly.

Power Source: Hardwired

Safety Features: Best

MSRP*: $82.97

Wire-Free Interconnected AC Hardwired Combination Smoke and Carbon Monoxide Alarm P4010ACSCO-W https://www.kidde.com/home-safety/en/us/products/fire-safety/combination-smoke-co-alarms/p4010acsco-w/ https://images.carriercms.com/image/upload/w_350,dpr_auto,c_limit,q_auto,f_auto/v1549711987/kidde/products/smoke-alarms/kidde-smoke-alarm-carbon-monoxide-alarm-hardwired-P4010ACSCO-W.jpg Hardwired Photoelectric Best $82.97

Power Source: 10-Year Battery

Safety Features: Best

MSRP*: $72.00

Wire-Free Interconnected Battery Powered Combination Smoke and Carbon Monoxide Alarm P4010DCSCO-W https://www.kidde.com/home-safety/en/us/products/fire-safety/combination-smoke-co-alarms/p4010dcsco-w/ https://images.carriercms.com/image/upload/w_350,dpr_auto,c_limit,q_auto,f_auto/v1549711986/kidde/products/smoke-alarms/kidde-smoke-alarm-carbon-monoxide-alarm-battery-P4010DCSCO-W.jpg 10-Year Battery Photoelectric Best $72.00