3-Day Sale.Ends 6/16. Limited quantities. No rainchecks.Shop now

Skip to content
Main Content

smart alarms

No content

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

Smart alarms are a class of security devices that work with your smartphone to protect your home or business. They can be set up to alert you to a variety of events, including the presence fire, smoke or carbon monoxide in the surrounding areas. Browse the top-ranked list of smart alarms below along with associated reviews and opinions.

Main Results
  1. First Alert - Smoke and Carbon Monoxide Alarm - Works with Ring - White - Front_Zoom
    Top comment

    "Great Smoke Alarm...These alarms work great! Connect to our ring alarm system!...a perfectly adequate smart home smoke alarm....These alarms do not communicate with each other, only the z-wave controller so one alarm is not able to sound the alarm on other units."

    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
    Top comment

    "Great Smoke Alarm...These alarms work great! Connect to our ring alarm system!...a perfectly adequate smart home smoke alarm....These alarms do not communicate with each other, only the z-wave controller so one alarm is not able to sound the alarm on other units."

    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
  2. Google - Nest Protect 2nd Generation (Battery) Smart Smoke/Carbon Monoxide Alarm - White - Angle_Zoom
    Top comment

    "Perfect smoke alarm and carbon monoxide alarm with smart phone notifications...Great addition to our smart home...The Google nest protection smoke alarm /carbon monoxide alarm is a great addition to our google smart devices. "

    See all customer reviews

    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
    Top comment

    "Perfect smoke alarm and carbon monoxide alarm with smart phone notifications...Great addition to our smart home...The Google nest protection smoke alarm /carbon monoxide alarm is a great addition to our google smart devices. "

    See all customer reviews

    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
  3. Google - Nest Protect 2nd Generation Smart Smoke/Carbon Monoxide Wired Alarm - White - Angle_Zoom
    Top comment

    "Smart alarm features are awesome...After one month, smart alarms are the best. Old alarms would "chirp" and we had a difficult time locating which alarm was having issues. ...Smart smoke detector...These smoke and CO detectors are very pleasing to the eye, easy to install and have all the smarts!"

    See all customer reviews

    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 alarm features are awesome...After one month, smart alarms are the best. Old alarms would "chirp" and we had a difficult time locating which alarm was having issues. ...Smart smoke detector...These smoke and CO detectors are very pleasing to the eye, easy to install and have all the smarts!"

    See all customer reviews

    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
  4. Swann - ActiveResponse Personal Safety Alarm Keychain with 110dB Emergency Siren - Aqua - Front_Zoom
    Top comment

    "Great personal alarms!...There is an app to setup and monitor the alarms. You can choose to notify someone when the alarm is triggered. ...Received these personal safety alarms from Tryit Sampling. They are really pretty smart to have and never seen them before receiving them now I have seen a few people with them. "

    See all customer reviews

    Product Description

    Swann's ActiveResponse Smart Mobile Personal Safety Alarm is stylish yet discreet but has the power to potentially save your life. When you find yourself in the presence of danger or become lost, pull the pin for a loud 110 decibel siren, and / or push the button to alert your primary emergency contact of your location for FREE. A perfect personal security alarm for women. Pair the Mobile Personal Safety Alarm with the Swann Security app on your phone via Bluetooth, to ensure your family, friends, and even emergency services (via subscription), can be alerted to your location. Use the included keyring to clip the Alarm to your keys, bag, backpack, school bag, or use the lanyard to wear it around your neck. Stylish and discreet, it is small enough to carry in a handbag or in your hand. A useful accessory. Use as safety device while running or hiking. With a sturdy, compact design and long battery life, they are the perfect companion for a walk, run, hike or trek. Take one with you when you travel, as they are even allowed on planes where pepper spray and tasers aren’t. A perfect personal safety Alarm for women's self defense. ActiveResponse is also a great gift idea for family, students, seniors, the disabled, shift workers, outdoor enthusiasts and more.
    See all Home Alarms & Sensors
    Top comment

    "Great personal alarms!...There is an app to setup and monitor the alarms. You can choose to notify someone when the alarm is triggered. ...Received these personal safety alarms from Tryit Sampling. They are really pretty smart to have and never seen them before receiving them now I have seen a few people with them. "

    See all customer reviews

    Product Description

    Swann's ActiveResponse Smart Mobile Personal Safety Alarm is stylish yet discreet but has the power to potentially save your life. When you find yourself in the presence of danger or become lost, pull the pin for a loud 110 decibel siren, and / or push the button to alert your primary emergency contact of your location for FREE. A perfect personal security alarm for women. Pair the Mobile Personal Safety Alarm with the Swann Security app on your phone via Bluetooth, to ensure your family, friends, and even emergency services (via subscription), can be alerted to your location. Use the included keyring to clip the Alarm to your keys, bag, backpack, school bag, or use the lanyard to wear it around your neck. Stylish and discreet, it is small enough to carry in a handbag or in your hand. A useful accessory. Use as safety device while running or hiking. With a sturdy, compact design and long battery life, they are the perfect companion for a walk, run, hike or trek. Take one with you when you travel, as they are even allowed on planes where pepper spray and tasers aren’t. A perfect personal safety Alarm for women's self defense. ActiveResponse is also a great gift idea for family, students, seniors, the disabled, shift workers, outdoor enthusiasts and more.
    See all Home Alarms & Sensors
    See all Home Alarms & Sensors
  5. Swann - ActiveResponse Personal Safety Alarm Keychain with 110dB Emergency Siren - Black - Front_Zoom
    Top comment

    "Low noise Personal alarm...The instructions have you scan the QR code on the bottom of the alarm to synchronize it to the phone. Once the alarm is synchronized to the phone you can complete the testing of the device. ...More than just a personal alarm...The personal alarms are really easy to link to your phone and set up. "

    See all customer reviews

    Product Description

    Swann's ActiveResponse Smart Mobile Personal Safety Alarm is stylish yet discreet but has the power to potentially save your life. When you find yourself in the presence of danger or become lost, pull the pin for a loud 110 decibel siren, and / or push the button to alert your primary emergency contact of your location for FREE. A perfect personal security alarm for women. Pair the Mobile Personal Safety Alarm with the Swann Security app on your phone via Bluetooth, to ensure your family, friends, and even emergency services (via subscription), can be alerted to your location. Use the included keyring to clip the Alarm to your keys, bag, backpack, school bag, or use the lanyard to wear it around your neck. Stylish and discreet, it is small enough to carry in a handbag or in your hand. A useful accessory. Use as safety device while running or hiking. With a sturdy, compact design and long battery life, they are the perfect companion for a walk, run, hike or trek. Take one with you when you travel, as they are even allowed on planes where pepper spray and tasers aren’t. A perfect personal safety Alarm for women's self defense. ActiveResponse is also a great gift idea for family, students, seniors, the disabled, shift workers, outdoor enthusiasts and more.
    See all Home Alarms & Sensors
    Top comment

    "Low noise Personal alarm...The instructions have you scan the QR code on the bottom of the alarm to synchronize it to the phone. Once the alarm is synchronized to the phone you can complete the testing of the device. ...More than just a personal alarm...The personal alarms are really easy to link to your phone and set up. "

    See all customer reviews

    Product Description

    Swann's ActiveResponse Smart Mobile Personal Safety Alarm is stylish yet discreet but has the power to potentially save your life. When you find yourself in the presence of danger or become lost, pull the pin for a loud 110 decibel siren, and / or push the button to alert your primary emergency contact of your location for FREE. A perfect personal security alarm for women. Pair the Mobile Personal Safety Alarm with the Swann Security app on your phone via Bluetooth, to ensure your family, friends, and even emergency services (via subscription), can be alerted to your location. Use the included keyring to clip the Alarm to your keys, bag, backpack, school bag, or use the lanyard to wear it around your neck. Stylish and discreet, it is small enough to carry in a handbag or in your hand. A useful accessory. Use as safety device while running or hiking. With a sturdy, compact design and long battery life, they are the perfect companion for a walk, run, hike or trek. Take one with you when you travel, as they are even allowed on planes where pepper spray and tasers aren’t. A perfect personal safety Alarm for women's self defense. ActiveResponse is also a great gift idea for family, students, seniors, the disabled, shift workers, outdoor enthusiasts and more.
    See all Home Alarms & Sensors
    See all Home Alarms & Sensors
  6. IQAir - AirVisual Outdoor Air Quality Monitor, Detects PM1, PM2.5, PM10, CO2, Temperature, Humidity; Wi-Fi, LAN, German Made - white - Front_Zoom
    See all Smoke & Carbon Monoxide Detectors
  7. IQAir - AirVisual Pro Air Quality Monitor for PM2.5, CO2, AQI, Temperature, and Humidity, IFTTT App Enabled - white - Front_Zoom
    See all Smoke & Carbon Monoxide Detectors
  8. Eve - Room Indoor Air Quality Monitor - Silver - Front_Zoom

    Product Description

    Keep your home's indoor air quality clean and healthy with Eve Room. The award winning indoor air sensor with Apple HomeKit technology measures air quality (VOC), temperature, and humidity levels in your home. Detect harmful VOC levels caused by everyday items, and track when indoor air quality drops. You can then ventilate in good time, and adopt healthy habits by following the history in the Eve app. Eve Room joins your Thread network automatically and is Apple HomeKit enabled for outstanding ease of use with iPhone, iPad, and Apple Watch. Enjoy the freedom to place the wireless indoor air sensor wherever you like - you can recharge the accessory via USB, and control Eve Room directly without any need for a bridge. And the best thing about all Eve accessories is how they protect your privacy: Eve does not harvest your personal data and there is no Eve cloud, so your data won't get exposed.
    See all Smoke & Carbon Monoxide Detectors

    Product Description

    Keep your home's indoor air quality clean and healthy with Eve Room. The award winning indoor air sensor with Apple HomeKit technology measures air quality (VOC), temperature, and humidity levels in your home. Detect harmful VOC levels caused by everyday items, and track when indoor air quality drops. You can then ventilate in good time, and adopt healthy habits by following the history in the Eve app. Eve Room joins your Thread network automatically and is Apple HomeKit enabled for outstanding ease of use with iPhone, iPad, and Apple Watch. Enjoy the freedom to place the wireless indoor air sensor wherever you like - you can recharge the accessory via USB, and control Eve Room directly without any need for a bridge. And the best thing about all Eve accessories is how they protect your privacy: Eve does not harvest your personal data and there is no Eve cloud, so your data won't get exposed.
    See all Smoke & Carbon Monoxide Detectors
    See all Smoke & Carbon Monoxide Detectors
  9. Sengled - Smart Window & Door Sensor (2-Pack) - White - Front_Zoom
    Top comment

    "Best price smart sensor windows...I use to have some Chinese knock off brand ones that required device handlers but these are so much better. They support most smart hubs natively out of the box. With Samsung Smart things it took a couple minutes to setup and connect. ...Purchased these contact sensors to use in my smart home setup. Works well with my Sengled bulbs and Smartthings hub."

    See all customer reviews

    Product Description

    Improve home security with this two-pack of Sengled smart window and door sensors. Featuring simple designs and adhesive backs, these smart sensors are easy to install, set up and pair to compatible hubs. These Sengled smart window and door sensors let you check in at home remotely via the included app.
    See all Door & Window Alarms
    Top comment

    "Best price smart sensor windows...I use to have some Chinese knock off brand ones that required device handlers but these are so much better. They support most smart hubs natively out of the box. With Samsung Smart things it took a couple minutes to setup and connect. ...Purchased these contact sensors to use in my smart home setup. Works well with my Sengled bulbs and Smartthings hub."

    See all customer reviews

    Product Description

    Improve home security with this two-pack of Sengled smart window and door sensors. Featuring simple designs and adhesive backs, these smart sensors are easy to install, set up and pair to compatible hubs. These Sengled smart window and door sensors let you check in at home remotely via the included app.
    See all Door & Window Alarms
    See all Door & Window Alarms
  10. Aqara - M2 Hub Control Center- Bridge with Alarm and IR Remote Control Function/ Supports Apple HomeKit, Alexa, Google Assistant - Black - Front_Zoom
    Top comment

    "[This review was collected as part of a promotion.] This smart alarm works great. If was super easy to install. ...Automation: You can set up automations based on the sensor's status, such as turning on lights when a door is opened or triggering an alarm when a window is opened unexpectedly. Overall, the Aqara Door and Window Sensor is a reliable and affordable device that can enhance your home's security and convenience by integrating with your existing smart home setup. "

    See all customer reviews

    Product Description

    Aqara Hub M2 is a smart home control center. It can be connected with a WiFi or Ethernet network, and supports interaction and connection with Aqara Zigbee accessories. It also has an IR remote control function, which can add and manage the control of different IR devices. The Aqara Hub M2 allows you to control your Aqara accessories more conveniently.
    See all Home Security Systems
    Top comment

    "[This review was collected as part of a promotion.] This smart alarm works great. If was super easy to install. ...Automation: You can set up automations based on the sensor's status, such as turning on lights when a door is opened or triggering an alarm when a window is opened unexpectedly. Overall, the Aqara Door and Window Sensor is a reliable and affordable device that can enhance your home's security and convenience by integrating with your existing smart home setup. "

    See all customer reviews

    Product Description

    Aqara Hub M2 is a smart home control center. It can be connected with a WiFi or Ethernet network, and supports interaction and connection with Aqara Zigbee accessories. It also has an IR remote control function, which can add and manage the control of different IR devices. The Aqara Hub M2 allows you to control your Aqara accessories more conveniently.
    See all Home Security Systems
    See all Home Security Systems
No content
No content