Modern Alarms
Best Buy customers often prefer the following products when searching for Modern Alarms.
Alarm systems are among the most important security investments you can make for your home. Browse the top-ranked list of modern alarms below along with associated reviews and opinions.
First Alert - Z-Wave Smoke and Carbon Monoxide Detector - White
Model: FSMCO410BXSKU: 6635312
First Alert - Smoke and Carbon Monoxide Detector Battery Powered - White
Model: FSMCO600NVCL1SKU: 6633004Top comment"Nest replacement smoke alarm...This one meshed easily with our existing Nest alarms. Missing some features that Nest had including night light feature....If already use google nest protect alarm system it will interconnect so when the smoke alarm goes off, all compartible alarms in your house will sound. "
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First Alert Battery Smart Smoke AlarmTop comment"Nest replacement smoke alarm...This one meshed easily with our existing Nest alarms. Missing some features that Nest had including night light feature....If already use google nest protect alarm system it will interconnect so when the smoke alarm goes off, all compartible alarms in your house will sound. "
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First Alert Battery Smart Smoke AlarmSee all Smoke & Carbon Monoxide Detectors
First Alert - Smoke and Carbon Monoxide Detector Hardwired - White
Model: FSMCO600NVACCL1SKU: 6633005Top comment"I even like the design of this smoke/Co2 detector, looks more modern and updated. I definitely recommend this First Alert alarm....The only downside is that the new alarm does not have the nightlight feature that was in the Nest Protect!"
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First Alert Hardwired Smart Smoke AlarmTop comment"I even like the design of this smoke/Co2 detector, looks more modern and updated. I definitely recommend this First Alert alarm....The only downside is that the new alarm does not have the nightlight feature that was in the Nest Protect!"
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First Alert Hardwired Smart Smoke AlarmSee all Smoke & Carbon Monoxide Detectors
SimpliSafe - 8pc Outdoor Home Security System - White
Model: KT075-01RUSSKU: 6623892Top comment"The base station looks like a regular smart device—it’s clean, modern, and the soft blue light is subtle. Everything feels well-made and was packaged professionally. ...The cameras have clear video quality day and night, and the motion detection is accurate without constant false alarms. I love that it’s a complete package—base station, sensors, keypad, and cameras—so you can protect multiple entry points right out of the box."
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SimpliSafe delivers advanced security solutions that put you, your home, and your safety first. With optional professional monitoring powered by Fast Protect Technology, SimpliSafe combines innovative hardware with advanced AI and real people — for 24/7 professional monitoring that delivers fast emergency response when you need it most. The award-winning SimpliSafe system is effective, intuitive, and affordable – so that home can be safe and secure for everyone. You can protect every inch of your home. SimpliSafe has sensors for every room, window and door. HD security cameras for inside and out. Smarter ways to detect motion that alert you only when a threat is real. Hazard sensors that detect floods, and other threats to your home. Powerful sirens that can help stop intruders in their tracks. That’s the unmatched combination that separates SimpliSafe Home Security from the others. At SimpliSafe, we believe everyone deserves to feel safe at home. That's why our bundles are designed to be effective yet affordable. And with no long-term contracts or hidden fees. This 8-piece wireless security bundle provides 24/7 protection from the outside in. Starting outside, the Outdoor Security Camera Series 2 keeps watch with a 140 degree field of view, 1080p HD resolution and color night vision, and includes 2-way audio. With the included power cables, the Outdoor Camera can help prevent crime before it happens with SimpliSafe Active Guard Outdoor Protection (available with select monitoring plans). The Base Station is the brains of the system. It sends alarm signals to the monitoring center with a built-in cellular connection with a professional monitoring plan, plus a back up battery that lasts up to 24 hours and a loud, 100 dB siren. The smash-safe Keypad is soft to the touch, easy to use during the day and night, and requires no plug so it can be placed anywhere. Entry Sensors (4 total) protect your doors, windows, and cabinets and are designed to blend into the background. And the Motion Sensor is designed for human detection, not pet detection.Advanced security, whole home protection. There's no safe like SimpliSafe.Top comment"The base station looks like a regular smart device—it’s clean, modern, and the soft blue light is subtle. Everything feels well-made and was packaged professionally. ...The cameras have clear video quality day and night, and the motion detection is accurate without constant false alarms. I love that it’s a complete package—base station, sensors, keypad, and cameras—so you can protect multiple entry points right out of the box."
See all customer reviewsSee all Home Security SystemsProduct Description
SimpliSafe delivers advanced security solutions that put you, your home, and your safety first. With optional professional monitoring powered by Fast Protect Technology, SimpliSafe combines innovative hardware with advanced AI and real people — for 24/7 professional monitoring that delivers fast emergency response when you need it most. The award-winning SimpliSafe system is effective, intuitive, and affordable – so that home can be safe and secure for everyone. You can protect every inch of your home. SimpliSafe has sensors for every room, window and door. HD security cameras for inside and out. Smarter ways to detect motion that alert you only when a threat is real. Hazard sensors that detect floods, and other threats to your home. Powerful sirens that can help stop intruders in their tracks. That’s the unmatched combination that separates SimpliSafe Home Security from the others. At SimpliSafe, we believe everyone deserves to feel safe at home. That's why our bundles are designed to be effective yet affordable. And with no long-term contracts or hidden fees. This 8-piece wireless security bundle provides 24/7 protection from the outside in. Starting outside, the Outdoor Security Camera Series 2 keeps watch with a 140 degree field of view, 1080p HD resolution and color night vision, and includes 2-way audio. With the included power cables, the Outdoor Camera can help prevent crime before it happens with SimpliSafe Active Guard Outdoor Protection (available with select monitoring plans). The Base Station is the brains of the system. It sends alarm signals to the monitoring center with a built-in cellular connection with a professional monitoring plan, plus a back up battery that lasts up to 24 hours and a loud, 100 dB siren. The smash-safe Keypad is soft to the touch, easy to use during the day and night, and requires no plug so it can be placed anywhere. Entry Sensors (4 total) protect your doors, windows, and cabinets and are designed to blend into the background. And the Motion Sensor is designed for human detection, not pet detection.Advanced security, whole home protection. There's no safe like SimpliSafe.See all Home Security Systems
Swann - Wi-Fi 4K Security Surveillance FloodLight Camera, Night Vision, Waterproof, Motion Activated, Heat Sensing, 2-Way Talk - White
Model: SWIFI-4KFLOCAM-USSKU: 6522683Top comment"This is a great addition to my home security system. The look is very modern and great. The video is crystal clear and sharp. ...There is also the ability to talk through the unit as well as sound an alarm. Great product!"
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The Swann 4K Floodlight Security Camera combines a high-intensity floodlight, siren, and 4K Ultra HD camera into one device for unparalleled outdoor security. It features two-way talk, color night vision, heat and motion detection, and alerts sent directly to your phone. The camera is designed to deter intruders effectively while providing clear, detailed video footage day or night. Its robust design ensures it can withstand adverse weather conditions, offering reliable security year-round.Top comment"This is a great addition to my home security system. The look is very modern and great. The video is crystal clear and sharp. ...There is also the ability to talk through the unit as well as sound an alarm. Great product!"
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The Swann 4K Floodlight Security Camera combines a high-intensity floodlight, siren, and 4K Ultra HD camera into one device for unparalleled outdoor security. It features two-way talk, color night vision, heat and motion detection, and alerts sent directly to your phone. The camera is designed to deter intruders effectively while providing clear, detailed video footage day or night. Its robust design ensures it can withstand adverse weather conditions, offering reliable security year-round.See all Home Security Systems
SimpliSafe - 9pc Outdoor Home Security System - White
Model: KT076-01RUSSKU: 6623891Top comment"SimpliSafe Alarm System...One standout feature for me is pet mode, which helps avoid false alarms triggered by my dog. My city fines homeowners for false alarms, and if the fine isn't paid, they won't respond to emergency calls. "
See all customer reviewsSee all Home Security SystemsProduct Description
SimpliSafe delivers advanced security solutions that put you, your home, and your safety first. With optional professional monitoring powered by Fast Protect Technology, SimpliSafe combines innovative hardware with advanced AI and real people — for 24/7 professional monitoring that delivers fast emergency response when you need it most. The award-winning SimpliSafe system is effective, intuitive, and affordable – so that home can be safe and secure for everyone. You can protect every inch of your home. SimpliSafe has sensors for every room, window and door. HD security cameras for inside and out. Smarter ways to detect motion that alert you only when a threat is real. Hazard sensors that detect floods, and other threats to your home. Powerful sirens that can help stop intruders in their tracks. That’s the unmatched combination that separates SimpliSafe Home Security from the others. At SimpliSafe, we believe everyone deserves to feel safe at home. That's why our bundles are designed to be effective yet affordable. And with no long-term contracts or hidden fees. This 9-piece wireless security bundle provides 24/7 protection from the outside in. Starting outside, the Outdoor Security Camera Series 2 (2 total)keeps watch with a 140 degree field of view, 1080p HD resolution and color night vision, and includes 2-way audio. With the included power cables, the Outdoor Camera can help prevent crime before it happens with SimpliSafe Active Guard Outdoor Protection (available with select monitoring plans). The Base Station is the brains of the system. It sends alarm signals to the monitoring center with a built-in cellular connection with a professional monitoring plan, plus a back up battery that lasts up to 24 hours and a loud, 100 dB siren. The smash-safe Keypad is soft to the touch, easy to use during the day and night, and requires no plug so it can be placed anywhere. Entry Sensors (4 total) protect your doors, windows, and cabinets and are designed to blend into the background. And the Motion Sensor is designed for human detection, not pet detection.Advanced security, whole home protection. There's no safe like SimpliSafe.Top comment"SimpliSafe Alarm System...One standout feature for me is pet mode, which helps avoid false alarms triggered by my dog. My city fines homeowners for false alarms, and if the fine isn't paid, they won't respond to emergency calls. "
See all customer reviewsSee all Home Security SystemsProduct Description
SimpliSafe delivers advanced security solutions that put you, your home, and your safety first. With optional professional monitoring powered by Fast Protect Technology, SimpliSafe combines innovative hardware with advanced AI and real people — for 24/7 professional monitoring that delivers fast emergency response when you need it most. The award-winning SimpliSafe system is effective, intuitive, and affordable – so that home can be safe and secure for everyone. You can protect every inch of your home. SimpliSafe has sensors for every room, window and door. HD security cameras for inside and out. Smarter ways to detect motion that alert you only when a threat is real. Hazard sensors that detect floods, and other threats to your home. Powerful sirens that can help stop intruders in their tracks. That’s the unmatched combination that separates SimpliSafe Home Security from the others. At SimpliSafe, we believe everyone deserves to feel safe at home. That's why our bundles are designed to be effective yet affordable. And with no long-term contracts or hidden fees. This 9-piece wireless security bundle provides 24/7 protection from the outside in. Starting outside, the Outdoor Security Camera Series 2 (2 total)keeps watch with a 140 degree field of view, 1080p HD resolution and color night vision, and includes 2-way audio. With the included power cables, the Outdoor Camera can help prevent crime before it happens with SimpliSafe Active Guard Outdoor Protection (available with select monitoring plans). The Base Station is the brains of the system. It sends alarm signals to the monitoring center with a built-in cellular connection with a professional monitoring plan, plus a back up battery that lasts up to 24 hours and a loud, 100 dB siren. The smash-safe Keypad is soft to the touch, easy to use during the day and night, and requires no plug so it can be placed anywhere. Entry Sensors (4 total) protect your doors, windows, and cabinets and are designed to blend into the background. And the Motion Sensor is designed for human detection, not pet detection.Advanced security, whole home protection. There's no safe like SimpliSafe.See all Home Security Systems
uHoo - Smart Indoor Air Quality Monitor - White
Model: UHOO-IAS1-M-C-USSKU: 6419011Top comment"This is the trend of all “modern” only app enabled devices so it is more of a pet peeve of mine. ...Like a fire alarm, a device you are glad to have!...Its one of those devices you hope you dont need like a fire alarm, but when you do have it it can be a life saver. "
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Detect allergens and toxins in the air with this uHoo smart indoor air monitor. The uHoo mobile app lets you view nine air quality sensors remotely, providing personalized tips on cleaning the air around your home. This uHoo smart indoor air monitor also features advanced integration capabilities with Amazon Alexa, Google Home, or IFTTT for smooth pairing with air purifiers, dehumidifiers, lights, etc.Top comment"This is the trend of all “modern” only app enabled devices so it is more of a pet peeve of mine. ...Like a fire alarm, a device you are glad to have!...Its one of those devices you hope you dont need like a fire alarm, but when you do have it it can be a life saver. "
See all customer reviewsSee all Smoke & Carbon Monoxide DetectorsProduct Description
Detect allergens and toxins in the air with this uHoo smart indoor air monitor. The uHoo mobile app lets you view nine air quality sensors remotely, providing personalized tips on cleaning the air around your home. This uHoo smart indoor air monitor also features advanced integration capabilities with Amazon Alexa, Google Home, or IFTTT for smooth pairing with air purifiers, dehumidifiers, lights, etc.See all Smoke & Carbon Monoxide Detectors
Swann - Smart WiFi Video Doorbell with Chime, 1080P Battery Operated, Ultra-Wide 180° View Indoor & Outdoor Surveillance - Black
Model: SWIFI-BUDDY-GLSKU: 6494928Top comment"Love the features, it is awesome you can talk, sound the alarm and turn on the light all at your fingertips on your phone...The app itself is quite basic and could do with some modern updates. There was quite a long delay in getting motion notifications and even longer when someone pressed the doorbell which defeats the object in having it really. "
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The SwannBuddy is a full-featured, easy-to-install wireless video doorbell and chime unit. It can operate 100% wire-free with the rechargeable battery or connect to your existing doorbell wiring. See every detail with 180° viewing angle and 1:1 aspect ratio. True Detect senses heat and movement for reliable alerts. See in the dark up to 26ft or 8m with powerful infrared night vision, and save 1000’s of clips locally. It’s security made smarter and fee free.Top comment"Love the features, it is awesome you can talk, sound the alarm and turn on the light all at your fingertips on your phone...The app itself is quite basic and could do with some modern updates. There was quite a long delay in getting motion notifications and even longer when someone pressed the doorbell which defeats the object in having it really. "
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The SwannBuddy is a full-featured, easy-to-install wireless video doorbell and chime unit. It can operate 100% wire-free with the rechargeable battery or connect to your existing doorbell wiring. See every detail with 180° viewing angle and 1:1 aspect ratio. True Detect senses heat and movement for reliable alerts. See in the dark up to 26ft or 8m with powerful infrared night vision, and save 1000’s of clips locally. It’s security made smarter and fee free.See all Home Security Systems
SimpliSafe - Smoke & Carbon Monoxide Detector - White
Model: CA002-01RUSSKU: 6543524Top comment"Fire Alarm...Ring has a sensor next to fire alarm. This is all in one...This one of the few smoke alarms tied to a good inexpensive security system. "
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Get alerted the minute a dangerous hazard threatens your home with the 2-in-1 smoke and carbon monoxide detector. Engineered to tell the difference between dangerous smoke and burning food, so you’ll always know when there’s a real emergency. It’s also backed by SimpliSafe’s award-winning security system and 24/7 professional monitoring—any time there’s trouble, emergency assistance will be quickly sent to your front door.* Setup is easy too with the included hardware. Plus, thoughtful notifications will give you daily updates on your detectors’ status, so you know it’s working properly. *Emergency dispatch is available with select monitoring plans.Top comment"Fire Alarm...Ring has a sensor next to fire alarm. This is all in one...This one of the few smoke alarms tied to a good inexpensive security system. "
See all customer reviewsSee all Smoke & Carbon Monoxide DetectorsProduct Description
Get alerted the minute a dangerous hazard threatens your home with the 2-in-1 smoke and carbon monoxide detector. Engineered to tell the difference between dangerous smoke and burning food, so you’ll always know when there’s a real emergency. It’s also backed by SimpliSafe’s award-winning security system and 24/7 professional monitoring—any time there’s trouble, emergency assistance will be quickly sent to your front door.* Setup is easy too with the included hardware. Plus, thoughtful notifications will give you daily updates on your detectors’ status, so you know it’s working properly. *Emergency dispatch is available with select monitoring plans.See all Smoke & Carbon Monoxide Detectors
SimpliSafe - Smoke & Carbon Monoxide Alarm Listener - White
Model: 01DUSCA011SKU: 6636609
AcuRite - Weather Station with Color Display and Wireless Sensor for Indoor and Outdoor Conditions - Black
Model: 02099HDSKU: 6539771Top comment"We have many AcuRite products and we love them; with the exception of the dual alarm clock - the one we purchased originally was replaced under warranty and eventually that one died so we purchased another only to have that one die as well (outside of the warranty period, of course). "
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The AcuRite weather station features a vibrant color display with a built-in thermometer and hygrometer to provide indoor temperature and humidity measurements. The included outdoor wireless weather sensor wirelessly relays the current outdoor temperature and humidity readings and generates a customized forecast using elevation and barometric pressure data. Enjoy automatic daylight saving time updates for convenience, and use the humidity level indicator to judge indoor comfort levels with just a glance.Top comment"We have many AcuRite products and we love them; with the exception of the dual alarm clock - the one we purchased originally was replaced under warranty and eventually that one died so we purchased another only to have that one die as well (outside of the warranty period, of course). "
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The AcuRite weather station features a vibrant color display with a built-in thermometer and hygrometer to provide indoor temperature and humidity measurements. The included outdoor wireless weather sensor wirelessly relays the current outdoor temperature and humidity readings and generates a customized forecast using elevation and barometric pressure data. Enjoy automatic daylight saving time updates for convenience, and use the humidity level indicator to judge indoor comfort levels with just a glance.See all Home Alarms & Sensors
AcuRite - Wireless Thermometer with Digital Display - White
Model: 01136MSKU: 6561383
AcuRite - Home Weather Station with Color Display and Wireless Thermometer - Black
Model: 01201MSKU: 6561381Top comment"It requires some set up, especially if you want alarms for high or low temperatures."
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The AcuRite weather station features a vibrant color display with a built-in thermometer and hygrometer to provide indoor temperature and humidity measurements. The included outdoor wireless weather sensor wirelessly relays the current outdoor temperature and humidity readings and generates a customized forecast using elevation and barometric pressure data. Enjoy automatic daylight saving time updates for convenience. This weather forecaster comes with a one-year limited warranty.Top comment"It requires some set up, especially if you want alarms for high or low temperatures."
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The AcuRite weather station features a vibrant color display with a built-in thermometer and hygrometer to provide indoor temperature and humidity measurements. The included outdoor wireless weather sensor wirelessly relays the current outdoor temperature and humidity readings and generates a customized forecast using elevation and barometric pressure data. Enjoy automatic daylight saving time updates for convenience. This weather forecaster comes with a one-year limited warranty.See all Home Alarms & Sensors
Eve - Weather Station with Matter - Silver
Model: 10EBS9951SKU: 6609104
Ring - Alarm Security Kit 9-Piece (2nd Gen) - White
Model: B0BTN48P6GSKU: 6560368See all Home Security SystemsProduct Description
Help secure your home against break-ins, and more, with Ring Alarm. When armed, Ring Alarm's siren sounds whenever doors or windows open and when motion is detected at home. Level-up your protection with a Ring Protect Pro subscription, sold separately, to get real-time alerts in the Ring App when your Alarm is triggered*, on-demand emergency support with optional Alarm Professional Monitoring**, and other benefits that keep your security ready for anything.See all Home Security SystemsProduct Description
Help secure your home against break-ins, and more, with Ring Alarm. When armed, Ring Alarm's siren sounds whenever doors or windows open and when motion is detected at home. Level-up your protection with a Ring Protect Pro subscription, sold separately, to get real-time alerts in the Ring App when your Alarm is triggered*, on-demand emergency support with optional Alarm Professional Monitoring**, and other benefits that keep your security ready for anything.See all Home Security Systems
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