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Best Buy customers often prefer the following products when searching for smart smoke detectors.

Smoke detectors are a must-have for any home, but some are smarter than others. These smoke detectors will alert you on your smartphone when there's a fire or smoke hazard. Browse the top-ranked list of smart smoke detectors below along with associated reviews and opinions.

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  1. First Alert - Dual-Sensor Smoke and Fire Alarm - White - Front_Zoom
    Top comment

    "I always test out my smoke detectors and boy howdy it was loud. I was impressed with the loudness and decided to replace all of my other smoke detectors with the First Alert Dual-sensor Smoke and Fire Alarm, Battery Powered, SA320CN. ...I needed to replace an old smoke detector and chose the First Alert dual smoke and fire detector after checking its features against the competition. ...Very loud smoke detector...Smoke & fire detector"

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    Product Description

    Stay safe with this First Alert smoke and fire alarm. It uses ionization and photoelectric sensors to detect different types of fires, and its smart sensor can distinguish between real fires and false alarms to keep nuisance alerts to a minimum. This First Alert smoke and fire alarm has a low battery light to show when it's time for maintenance.
    See all Smoke & Carbon Monoxide Detectors
    Top comment

    "I always test out my smoke detectors and boy howdy it was loud. I was impressed with the loudness and decided to replace all of my other smoke detectors with the First Alert Dual-sensor Smoke and Fire Alarm, Battery Powered, SA320CN. ...I needed to replace an old smoke detector and chose the First Alert dual smoke and fire detector after checking its features against the competition. ...Very loud smoke detector...Smoke & fire detector"

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    Product Description

    Stay safe with this First Alert smoke and fire alarm. It uses ionization and photoelectric sensors to detect different types of fires, and its smart sensor can distinguish between real fires and false alarms to keep nuisance alerts to a minimum. This First Alert smoke and fire alarm has a low battery light to show when it's time for maintenance.
    See all Smoke & Carbon Monoxide Detectors
    See all Smoke & Carbon Monoxide Detectors
  2. First Alert - CO615 Carbon Monoxide Plug-In Alarm with Battery Backup CO615 - White - Front_Zoom
    Top comment

    "I knew it was time to replace our carbon monoxide detector. First Alert has always been a reliable device for both smoke and monoxide detectors. ...CO Detector...Easy to install the backup battery. The plug and detector can be separated a few feet, and the detector mounted on the wall if desired. "

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    Product Description

    Detect dangerous CO levels in your home with this First Alert CO615 carbon monoxide alarm. The plug-in design makes installation easy and lets you move the unit from room to room as needed. Battery backup on this First Alert carbon monoxide alarm keeps it working even during a power outage for added peace of mind and security.
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    Top comment

    "I knew it was time to replace our carbon monoxide detector. First Alert has always been a reliable device for both smoke and monoxide detectors. ...CO Detector...Easy to install the backup battery. The plug and detector can be separated a few feet, and the detector mounted on the wall if desired. "

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    Product Description

    Detect dangerous CO levels in your home with this First Alert CO615 carbon monoxide alarm. The plug-in design makes installation easy and lets you move the unit from room to room as needed. Battery backup on this First Alert carbon monoxide alarm keeps it working even during a power outage for added peace of mind and security.
    See all Smoke & Carbon Monoxide Detectors
    See all Smoke & Carbon Monoxide Detectors
  3. First Alert - Smoke and Carbon Monoxide Alarm - Works with Ring - White - Front_Zoom
    Top comment

    "They were easy to install and don’t look any worse than any other smoke detector. They are a little more expensive than other detectors and show up as 2 devices in the smart app. ...Best smoke detector...It works pretty good.this is one of the best smoke detectors I can buy.."

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    Product Description

    First Alert ZCOMBO is a state-of-the-art wireless combination smoke and CO alarm designed to provide early warning of a fire or CO. It features a fully insect screened Photoelectric smoke sensing chamber and an electrochemical carbon monoxide sensor, an 85dB horn, a supervised 3V (2 AA batteries) power supply, utilizes one test button to setup, test and silence. This combination alarm will operate with 3rd party, certified Z-Wave devices enabled with the First Alert protocol and the basic command class required by all Z-Wave devices. First Alert ZCOMBO also includes the Smart Start feature which allows a faster and more intuitive connection of device to hub and on-boarding via use of QR code scan located on device. By the requirements of the Device Class spec, this command class does not have to be mapped to any particular functionality for this device. The alarm supports one association group with up to 1 node and sends its alarms to that group. The alarm supports configuration parameter #1, which has a size of 1, a default value of 0, and when set to 1 causes the device to send double alarm messages. Upon the detection of smoke or CO conditions, the alarm reports smoke and or CO detected to the controller. The device shall send the applicable message when the conditions are cleared. These notifications must be wrapped in the Supervision CC. The following notifications must be supported. The alarm sends a “Heartbeat” signal to hub periodically to confirm operability. It also features tamper resistant locking pins that lock alarm to the mounting bracket and battery drawer to prevent removal of battery or alarm. Designed for wall or ceiling mounting. Includes mounting anchors and screws.
    See all Smoke & Carbon Monoxide Detectors
    Top comment

    "They were easy to install and don’t look any worse than any other smoke detector. They are a little more expensive than other detectors and show up as 2 devices in the smart app. ...Best smoke detector...It works pretty good.this is one of the best smoke detectors I can buy.."

    See all customer reviews

    Product Description

    First Alert ZCOMBO is a state-of-the-art wireless combination smoke and CO alarm designed to provide early warning of a fire or CO. It features a fully insect screened Photoelectric smoke sensing chamber and an electrochemical carbon monoxide sensor, an 85dB horn, a supervised 3V (2 AA batteries) power supply, utilizes one test button to setup, test and silence. This combination alarm will operate with 3rd party, certified Z-Wave devices enabled with the First Alert protocol and the basic command class required by all Z-Wave devices. First Alert ZCOMBO also includes the Smart Start feature which allows a faster and more intuitive connection of device to hub and on-boarding via use of QR code scan located on device. By the requirements of the Device Class spec, this command class does not have to be mapped to any particular functionality for this device. The alarm supports one association group with up to 1 node and sends its alarms to that group. The alarm supports configuration parameter #1, which has a size of 1, a default value of 0, and when set to 1 causes the device to send double alarm messages. Upon the detection of smoke or CO conditions, the alarm reports smoke and or CO detected to the controller. The device shall send the applicable message when the conditions are cleared. These notifications must be wrapped in the Supervision CC. The following notifications must be supported. The alarm sends a “Heartbeat” signal to hub periodically to confirm operability. It also features tamper resistant locking pins that lock alarm to the mounting bracket and battery drawer to prevent removal of battery or alarm. Designed for wall or ceiling mounting. Includes mounting anchors and screws.
    See all Smoke & Carbon Monoxide Detectors
    See all Smoke & Carbon Monoxide Detectors
  4. Airthings - Wave Smart Radon Detector with Free App, Temp and Humidity Monitor, Battery Operated, No Lab Fees. - Matte White and Silver - Front_Zoom
    Top comment

    "With our first kid and a renovation underway we decided to pick one of these up as we were updating our house with smoke and carbon monoxide detectors. We tried this out in multiple rooms for a week to try and the best place to put it. ...I have never had an a radon detector before. I recently learned how serious radon is and am so glad I have a radon detector now. "

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    Product Description

    The Airthings Wave 2nd Generation is a smart radon detector providing accurate continuous and long-term results straight to your smartphone. Replacing single-use radon test kits, this digital radon monitor shows daily, weekly, monthly and yearly measurements in the free mobile app. Use the data to protect your home and loved ones from the dangers of radon gas and make sure radon levels stay low. It is battery powered, meaning no AC outlet is required and it can be placed anywhere in the home. The Airthings Wave includes an additional humidity sensor and temperature sensor, allowing you to improve indoor air quality overall. Monitor to ensure healthy indoor humidity levels and a comfortable temperature. Detailed analytics are available in the Airthings app and Web Dashboard or simply wave in front of the device to receive a color-coded visual indicator of the overall air quality; Green (Low), Yellow (Warning), Red (Danger). The radon monitor is also smart home enabled and works with Alexa, Google Assistant and IFTTT (if this then that). The Airthings Wave 2nd generation has the same sensors as the 1st generation, but it includes Smartlink functionality that allows the device to connect to the Airthings Hub.
    See all Smoke & Carbon Monoxide Detectors
    Top comment

    "With our first kid and a renovation underway we decided to pick one of these up as we were updating our house with smoke and carbon monoxide detectors. We tried this out in multiple rooms for a week to try and the best place to put it. ...I have never had an a radon detector before. I recently learned how serious radon is and am so glad I have a radon detector now. "

    See all customer reviews

    Product Description

    The Airthings Wave 2nd Generation is a smart radon detector providing accurate continuous and long-term results straight to your smartphone. Replacing single-use radon test kits, this digital radon monitor shows daily, weekly, monthly and yearly measurements in the free mobile app. Use the data to protect your home and loved ones from the dangers of radon gas and make sure radon levels stay low. It is battery powered, meaning no AC outlet is required and it can be placed anywhere in the home. The Airthings Wave includes an additional humidity sensor and temperature sensor, allowing you to improve indoor air quality overall. Monitor to ensure healthy indoor humidity levels and a comfortable temperature. Detailed analytics are available in the Airthings app and Web Dashboard or simply wave in front of the device to receive a color-coded visual indicator of the overall air quality; Green (Low), Yellow (Warning), Red (Danger). The radon monitor is also smart home enabled and works with Alexa, Google Assistant and IFTTT (if this then that). The Airthings Wave 2nd generation has the same sensors as the 1st generation, but it includes Smartlink functionality that allows the device to connect to the Airthings Hub.
    See all Smoke & Carbon Monoxide Detectors
    See all Smoke & Carbon Monoxide Detectors
  5. Google - Nest Protect 2nd Generation (Battery) Smart Smoke/Carbon Monoxide Alarm - White - Angle_Zoom
    Top comment

    "Nest has rethought the ordinary smoke detector and made it smart....Great Smoke Detector...Huge fan of Nest's smoke detectors. we have them all over our house."

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    Product Description

    Nest Protect Smoke and Carbon Monoxide Alarm - 2nd Generation (Battery): Nest Protect reliably detects and alerts you to the presence of smoke or carbon monoxide in your home. The alarm speaks to you in a calm, clear, human voice, telling you the location of the danger. It also provides smartphone alerts and battery status updates to help protect your home.
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    Top comment

    "Nest has rethought the ordinary smoke detector and made it smart....Great Smoke Detector...Huge fan of Nest's smoke detectors. we have them all over our house."

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    Product Description

    Nest Protect Smoke and Carbon Monoxide Alarm - 2nd Generation (Battery): Nest Protect reliably detects and alerts you to the presence of smoke or carbon monoxide in your home. The alarm speaks to you in a calm, clear, human voice, telling you the location of the danger. It also provides smartphone alerts and battery status updates to help protect your home.
    See all Smoke & Carbon Monoxide Detectors
    See all Smoke & Carbon Monoxide Detectors
  6. Google - Nest Protect 2nd Generation Smart Smoke/Carbon Monoxide Wired Alarm - White - Angle_Zoom
    Top comment

    "Smart smoke detector...These smoke and CO detectors are very pleasing to the eye, easy to install and have all the smarts!...Best thing I’ve bought recently. smart smoke detectors are a must."

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    Product Description

    Nest Protect reliably detects and alerts you to the presence of smoke or carbon monoxide in your home. The alarm speaks to you in a calm, clear, human voice, telling you the location of the danger. It also provides smartphone alerts and battery status updates to help protect your home. This hardwired version is suitable for homes with existing hardwired smoke or CO detectors.
    See all Smoke & Carbon Monoxide Detectors
    Top comment

    "Smart smoke detector...These smoke and CO detectors are very pleasing to the eye, easy to install and have all the smarts!...Best thing I’ve bought recently. smart smoke detectors are a must."

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    Product Description

    Nest Protect reliably detects and alerts you to the presence of smoke or carbon monoxide in your home. The alarm speaks to you in a calm, clear, human voice, telling you the location of the danger. It also provides smartphone alerts and battery status updates to help protect your home. This hardwired version is suitable for homes with existing hardwired smoke or CO detectors.
    See all Smoke & Carbon Monoxide Detectors
    See all Smoke & Carbon Monoxide Detectors
  7. Airthings - Wave  Plus Smart Indoor Air Quality Monitor with Radon Detection - Matte White - Front_Zoom
    Top comment

    "This is a multifaceted monitor that measures, Radon, CO2, Humidity, Temperature, Volatile Organic Compounds (VOCs), and Air pressure. The unit resembles a smoke detector and pairs via Bluetooth to your smart device to the Airthings Wave App. ...I took it out of the box and it is the size of a smoke detector, not as chunky. It was easy to install the base with once screw and the device is held onto the base with a strong magnet. "

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    Product Description

    We spend 90% of our time indoors where the air is often 2 to 5 times worse than the air outside. Continuous monitoring of indoor air quality is key for minimizing negative health effects, preventing illness and increasing productivity, energy and good health. Airthings, air quality specialists and experts in radon, created the Airthings Wave Plus as the first smart air quality monitor with radon detection. Wave Plus has since won multiple awards for consumer electronics and innovation and was among the 2019 TIME Magazine inventions of the year. It is the perfect solution for homeowners to gain full visibility into six indoor air factors; radon, carbon dioxide (CO2), airborne chemicals (TVOCs), humidity, temperature and air pressure. Airthings Wave Plus includes a free app to connect to your smartphone (iOS/Android) via Bluetooth and an online dashboard with advanced analytics. Battery operated allowing you to install anywhere, with 16 months battery life. Please allow for a 7-Day settling period for the sensors to adjust to their new environment. By monitoring daily and continuously, you can avoid radon side effects, get the best indoor humidity level, low voc levels and low carbon dioxide levels. Made to the best indoor air quality standards, Airthings Wave Plus is essential in every home.
    See all Smoke & Carbon Monoxide Detectors
    Top comment

    "This is a multifaceted monitor that measures, Radon, CO2, Humidity, Temperature, Volatile Organic Compounds (VOCs), and Air pressure. The unit resembles a smoke detector and pairs via Bluetooth to your smart device to the Airthings Wave App. ...I took it out of the box and it is the size of a smoke detector, not as chunky. It was easy to install the base with once screw and the device is held onto the base with a strong magnet. "

    See all customer reviews

    Product Description

    We spend 90% of our time indoors where the air is often 2 to 5 times worse than the air outside. Continuous monitoring of indoor air quality is key for minimizing negative health effects, preventing illness and increasing productivity, energy and good health. Airthings, air quality specialists and experts in radon, created the Airthings Wave Plus as the first smart air quality monitor with radon detection. Wave Plus has since won multiple awards for consumer electronics and innovation and was among the 2019 TIME Magazine inventions of the year. It is the perfect solution for homeowners to gain full visibility into six indoor air factors; radon, carbon dioxide (CO2), airborne chemicals (TVOCs), humidity, temperature and air pressure. Airthings Wave Plus includes a free app to connect to your smartphone (iOS/Android) via Bluetooth and an online dashboard with advanced analytics. Battery operated allowing you to install anywhere, with 16 months battery life. Please allow for a 7-Day settling period for the sensors to adjust to their new environment. By monitoring daily and continuously, you can avoid radon side effects, get the best indoor humidity level, low voc levels and low carbon dioxide levels. Made to the best indoor air quality standards, Airthings Wave Plus is essential in every home.
    See all Smoke & Carbon Monoxide Detectors
    See all Smoke & Carbon Monoxide Detectors
  8. First Alert - Ionization Smoke Sensor with Alarm - White - Angle_Zoom
    Top comment

    "Affordable Smoke Detector...Smoke detector...I think this is a good smoke sensor and woth the price."

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    Product Description

    Get alerted sooner to fire dangers with this First Alert smoke alarm. It can run for up to 10 years without a battery change, ensuring reliable use, and its ionization sensor provides steady monitoring for your home. This First Alert smoke alarm has a mute button so you can silence it quickly after accidental activations.
    See all Smoke & Carbon Monoxide Detectors
    Top comment

    "Affordable Smoke Detector...Smoke detector...I think this is a good smoke sensor and woth the price."

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    Product Description

    Get alerted sooner to fire dangers with this First Alert smoke alarm. It can run for up to 10 years without a battery change, ensuring reliable use, and its ionization sensor provides steady monitoring for your home. This First Alert smoke alarm has a mute button so you can silence it quickly after accidental activations.
    See all Smoke & Carbon Monoxide Detectors
    See all Smoke & Carbon Monoxide Detectors
  9. First Alert - Basic Smoke Alarm - White - Front_Zoom

    Model: 1039796
    SKU: 6315924
    Top comment

    "Smoke detector...Pretty much your basic smoke detector. Does not include carbon monoxide checking....I love the piece of mind this smoke detector gives me in my home. I have First Alert smoke detectors in every room of my home. "

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    Product Description

    Safeguard what's important to you with this First Alert basic smoke alarm. It's battery-powered, so no complicated wiring is required, and it has a mute button for fast silencing of false alarms and easy battery testing. The EZ-Access battery door on this First Alert basic smoke alarm allows hassle-free maintenance.
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    Top comment

    "Smoke detector...Pretty much your basic smoke detector. Does not include carbon monoxide checking....I love the piece of mind this smoke detector gives me in my home. I have First Alert smoke detectors in every room of my home. "

    See all customer reviews

    Product Description

    Safeguard what's important to you with this First Alert basic smoke alarm. It's battery-powered, so no complicated wiring is required, and it has a mute button for fast silencing of false alarms and easy battery testing. The EZ-Access battery door on this First Alert basic smoke alarm allows hassle-free maintenance.
    See all Smoke & Carbon Monoxide Detectors
    See all Smoke & Carbon Monoxide Detectors
  10. Airthings - Wave Mini Indoor Air Quality Monitor w/TVOC, Temp & Humidity sensors w/Mold Risk Indicator - White - Front_Zoom
    Top comment

    "I searched for a mold detector, and from what I can tell there is no simple airborne detector on the market. "

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    Product Description

    Airthings Wave Mini is small in size but big in impact. This indoor air quality monitor is the first step to understanding your indoor air quality, and a great addition to your existing Airthings air quality ecosystem of smart monitors. Our Total VOC sensor monitors toxins and chemicals in your air that can cause negative health effects such as headache, fatigue, memory impairment, and more. A VOC detector is key to ensuring the optimal health and comfort levels of every room. The Wave Mini also has a humidity sensor (hygrometer) which enables you to enjoy the best indoor humidity level for your specific home. The temperature sensor allows you to maintain a healthy home and comfortable home. You can get results straight to your smartphone via Bluetooth or check the Airthings web dashboard for detailed and valuable insights into your air quality. Established in Norway in 2008, Airthings is a global tech company led by a team of experienced scientists, engineers, developers and visionaries.
    See all Smoke & Carbon Monoxide Detectors
    Top comment

    "I searched for a mold detector, and from what I can tell there is no simple airborne detector on the market. "

    See all customer reviews

    Product Description

    Airthings Wave Mini is small in size but big in impact. This indoor air quality monitor is the first step to understanding your indoor air quality, and a great addition to your existing Airthings air quality ecosystem of smart monitors. Our Total VOC sensor monitors toxins and chemicals in your air that can cause negative health effects such as headache, fatigue, memory impairment, and more. A VOC detector is key to ensuring the optimal health and comfort levels of every room. The Wave Mini also has a humidity sensor (hygrometer) which enables you to enjoy the best indoor humidity level for your specific home. The temperature sensor allows you to maintain a healthy home and comfortable home. You can get results straight to your smartphone via Bluetooth or check the Airthings web dashboard for detailed and valuable insights into your air quality. Established in Norway in 2008, Airthings is a global tech company led by a team of experienced scientists, engineers, developers and visionaries.
    See all Smoke & Carbon Monoxide Detectors
    See all Smoke & Carbon Monoxide Detectors
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