14 Best Smart Smoke and Carbon Monoxide Detectors for Your Home Ranked & Reviewed for 2025
Discover the best smart smoke and carbon monoxide detectors to keep your home safe and sound!
Google Nest Protect Smart Smoke and Carbon Monoxide Alarm
$149.99Features:
• Simple connection and easy to replace • Early warning signal for smoke • Clear directions in emergencies • Automatically tests itself • Pathlight illuminates your way • Hardwired with backup battery • Alerts sent to your smartphone • Synchronized sensors for full coverage
What We Think:
"This alarm is like having a personal safety assistant in your home—always on top of things without being intrusive!"
Why You'll Love It:
"It's reliable, has an intuitive app, and keeps you informed about smoke and CO levels in real time. Plus, the human voice feature is a huge upgrade from standard alarms!"
Google Nest Protect Smart Smoke and Carbon Monoxide Alarm
$199.99Features:
• Split-Spectrum Sensor for quick detection • Smartphone connectivity for alerts • Friendly voice alerts • Self-testing capability • Easy installation (battery-operated)
What We Think:
"This is the equivalent of having a tech-savvy buddy hanging around your house, ready to alert you when something’s up!"
Why You'll Love It:
"You’ll appreciate the comprehensive real-time alerts and the fact that it tests itself, leaving you worry-free."
Google Nest Protect Smart Smoke/Carbon Monoxide Alarm, 2 Pack
$329.99Features:
• Simple connection and easy to replace • Pathlight feature for nighttime visibility • Clear voice directions • Smartphone alerts • Wired connection with battery backup • Synchronized alarms in your home
What We Think:
"With two units, your home’s safety just hit the next level—it's like having a smoke safety net!"
Why You'll Love It:
"Peace of mind comes in pairs, and these alarms will keep every nook and cranny of your home protected and lit up when needed!"
Nest Protect Smoke & Carbon Monoxide Alarm (2nd Gen)
$159.99Features:
• Wired design • Voice alerts for location specifics • Continuous self-testing • Connects to smartphone for updates
What We Think:
"If you want a smoke detector that practically does the thinking for you, look no further!"
Why You'll Love It:
"Reliable and smart, this alarm will keep you updated and ready, all while blending seamlessly into your home!"
X-Sense 10-Year Battery Combination Smoke Carbon Monoxide Alarm
$37.99Features:
• 2-in-1 detection for smoke and CO • Includes informative LCD display • 10-year sealed battery • Easy installation with wall or ceiling mounting
What We Think:
"For those who want robust performance and easy installation, this does the job without fuss!"
Why You'll Love It:
"It's perfect for those who want an alarm that’s reliable and displays real-time levels to keep you in the know!"
X-Sense Smart Smoke and Carbon Monoxide Detector Combo
$29.69Features:
• Wi-Fi connectivity for remote alerts • Two-in-one protection with photoelectric and electrochemical sensors • Shareability with family via app • Instant app notifications
What We Think:
"This smart alarm gives you peace of mind whether you're home or away—perfect for busy families!"
Why You'll Love It:
"With only one alarm needed, you can monitor your home's safety right from your pocket, anytime, anywhere!"
First Alert SCO501CN-3ST Wireless Interconnected Alarm
$68.47Features:
• Connects multiple alarms wirelessly • Voice alarm indication • Features dual sensing technology
What We Think:
"For those who want a highly connected safety net, this system links seamlessly to keep your whole home safe!"
Why You'll Love It:
"There's something reassuring about an interconnected system that alerts you everyone has the information they need in case of an emergency."
Kidde Carbon Monoxide Detector with Battery Backup
$42.94Features:
• Easy plug-in installation • Digital LED display shows CO levels • 9-volt battery backup for power outages
What We Think:
"This one is a classic and reliable solution—plug it in, and you’re set!"
Why You'll Love It:
"It's a trusty detector that provides clear readings and the assurance of backup power during outages."
Kidde Nighthawk Battery Powered Carbon Monoxide Alarm
$39.38Features:
• Digital display updates CO levels every 15 seconds • Battery operated with included AA batteries • Test/reset button for immediate silence
What We Think:
"For quick and easy CO detection, this unit is unbeatable!"
Why You'll Love It:
"Your family’s safety is always just a button away with this user-friendly, reliable device."
Kidde Portable Carbon Monoxide Detector with LED Indicators
$27.94Features:
• Easy wall mount or tabletop installation • Green and red LEDs indicate status • 85-decibel alarm for alerts
What We Think:
"This portable alarm offers versatility and reliability wherever you need it! Perfect for any room!"
Why You'll Love It:
"An easily positioned detector is essential for monitored safety without any heavy lifting or complex installation."
X-Sense Battery-Operated Wireless Interconnected Smoke and Carbon Monoxide Detector
$169.99Features:
• Wireless connectivity without a base station • Alarms sync up for comprehensive coverage • App controls for silent mode and monitoring • Easy installation
What We Think:
"This alarm brings modern tech to a classic problem and is ideal for anyone looking to leverage smart home technology for safety!"
Why You'll Love It:
"With the ability to control alarms through an app, this is perfect for tech-savvy homeowners who want everything at their fingertips!"
X-Sense Smart Smoke and Carbon Monoxide Detector with App Alerts
$119.99Features:
• Battery operated with real-time notifications • Easy app control for silencing • Device sharing for family access
What We Think:
"For the modern family, this alarm checks all the boxes!"
Why You'll Love It:
"Provide safety tailored to your lifestyle with easy app controls and notifications, perfect for anyone on-the-go."
Universal Security Instruments 10-Year Tamper Proof Smart Alarm
$58.95Features:
• 10 years of protection against smoke and CO • Eco-friendly alkaline batteries included • Quick installation without wiring
What We Think:
"A good fit for anyone looking for reliable safety without the tech hassle!"
Why You'll Love It:
"Enjoy peace of mind knowing your home is safe without the need for a tech degree!"
Universal Security Instruments Carbon Monoxide Smart Alarm
$38.73Features:
• 10 years of battery power • Smart alarm technology to reduce false alarms • Versatile tabletop or wall mounting
What We Think:
"If you want a device that’s effective and user-friendly, this one hits the mark!"
Why You'll Love It:
"It’s maintenance-free for a decade, simplifying safety for everyone!"