The best smart carbon monoxide detectors

Every household needs a smoke and carbon detector to keep them safe, but why not go further with a smart carbon monoxide detector.

From battery powered detectors to wired detectors, there are plenty of options out there. Each has its own features designed to keep you and your family safe at home.

Smart carbon monoxide detectors often include features that allow you to monitor the carbon monoxide level on your phone, as well as battery life. Some even let you choose when and how you want to be notified of any issues with the appliance or your home.

Here are the best smart carbon monoxide detectors available today.

The First Alert Onelink Safe & Sound is slightly larger than the Nest Protect and has a 10W BMR speaker which is extremely powerful. The LED status indicator flashes red during an alarm and serves as a night light. The built-in Bluetooth radio and Wi-Fi radio sit next to the 85dB siren and can be connected to other smart home devices.

If the First Alert Onelink Safe & Sound detects smoke or carbon monoxide, it sends a notification to your phone. The notification shows a button to call 911 or an ignore button to silence the alarm. You can also use Alexa and Siri voice commands and create smart home automations for added convenience.

Although the installation is not difficult, you do need to connect it to a junction box. If you are not familiar with this process, an electrician will have to be called, which is not exactly convenient or cheap. Once plugged in, however, you get a smart carbon monoxide detector that is powerful, offers many features and keeps you safe.

Most important features:

  • Remote notifications via smartphone
  • Voice prompts
  • Alexa-enabled
  • AirPlay 2 Compatible
  • Connects to other wired alarms in your home

  • Display type: N/A
  • Batteries: 2x lithium metal
  • Brand: First warning
  • Dimensions: 7 x 7 x 2 inches
  • Weight: 1.76 pounds

  • Smoke and Carbon Monoxide Warnings
  • Compatible with other smart home devices
  • Supports Apple HomeKit
  • Decent speaker

  • Wiring required
  • No IFTTT support
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First warning Onelink safe and sound

The Google Nest Protect is an expensive investment, but well worth it if you want to protect your home and family from potentially life-threatening smoke and carbon monoxide. With a round LED, this smart carbon monoxide detector can indicate whether there is smoke or CO2 in your home. Yellow means it has been detected but has not yet reached the critical level, while red indicates that you must leave your home immediately due to a critical alert.

Setting up the Google Nest Protect is very easy; just screw it into the ceiling and connect it via the Nest app on your Android or iOS smartphone. Once connected, this alarm will not only let you know that something is wrong with a siren, but it will also alert you via your phone and provide detailed information. For example, it knows whether smoke or carbon monoxide has been detected and in which room.

Doing self checks is something else that this smart carbon monoxide detector does. It ensures that Google Nest Protect always works and sounds a siren once a month just to be safe. You can also connect it to other smart home devices like Google Home, Philips Hue and more.

Most important features:

  • Split spectrum sensor
  • App silence
  • Lightpath is activated in the dark
  • Security check with full report
  • Connect via WiFi to receive alerts

  • Display type: Digital
  • Batteries: 6x lithium metal
  • Brand: google
  • Dimensions: 5.3 x 1.5 x 5.3 inches
  • Weight: 1 lb

  • Detects carbon monoxide and smoke
  • Voice prompts
  • Connects to other smart home devices
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Google Nest Protect Carbon Monoxide Alarm

The First Alert Z-Wave Smoke Alarm & Carbon Monoxide Alarm is easy to set up and only requires two AA batteries to operate. To control the alarm, you can use a Z-Wave Plus controller, SmartThings, Nexia Home Intelligence and Ring Alarm. To test it, you can press the single test button that sounds the loud 85dB alarm to make sure your home is secured.

Get real-time notifications from your First Alert Z-Wave Smoke Alarm & Carbon Monoxide Alarm when smoke or carbon monoxide is detected, straight to your phone so you can act wherever you are.

Most important features:

  • Real-time notifications in the Ring app
  • QR code scannable on device
  • 85dB horn
  • silence button

  • Display type: N/A
  • Including: 2x AA batteries
  • Batteries: Yes
  • Brand: First warning
  • Dimensions: 3.66 x 6.75 x 8.5 inches
  • Weight: 14.4oz

  • Smoke and CO sensor
  • Battery operated (no wiring)
  • Loud siren

  • Requires Ring Alarm to work with Ring
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First Alert Z-Wave Smoke Detector & Carbon Monoxide Detector

The Siterwell WiFi Smoke and Carbon Monoxide Alarm requires AA batteries to operate. No hardwiring is required, but once set up, you can connect the device to your home’s Wi-Fi and access it via the app. And if there are several people in your house, they can access it too.

The main benefit of accessing this CO detector through the app is the real-time notifications. Whether you’re at home or not, you’ll be notified if the detector is triggered by smoke or carbon monoxide. There is also a voice alert so that you are immediately aware of any problems if they arise.

However, it can be difficult to pair the Siterwell WiFi Smoke and Carbon Monoxide Alarm with the app. It’s a bit temperamental and only works with 2.4GHz Wi-Fi. But once paired, you’ll appreciate this device’s ability to check itself for errors, detect potential hazards, and alert you to keep you safe.

Most important features:

  • Speech speaker
  • Self-test function
  • Photoelectric Smoke Detection Technology

  • Display type: N/A
  • Batteries: 2x AA batteries
  • Brand: Siterwell
  • Dimensions: 6.22 x 6.1 x 4.37 inches
  • Weight: 12.3oz

  • Checks itself for errors
  • Unique speech speaker
  • Smoke and monoxide detection

  • Only 2.4GHz Wi-Fi
  • Some problems pairing with the app
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Siterwell WiFi Smoke Detector

The AEGISLINK Wi-Fi Smoke and Carbon Monoxide Alarm makes it easier than ever to secure your household. With no wiring or expert installation required, you can receive real-time monitoring and alerts in minutes.

The TuyaSmart app allows you to manage notifications, such as low battery alerts, so you can personalize your smart smoke and carbon monoxide alarm the way you want, while checking the carbon level at a glance from your phone.

With continuous checks, the AEGISLINK Wi-Fi Smoke and Carbon Monoxide Detector checks itself for errors and problems, so you can be safe in the knowledge that your device is constantly watching your home to protect you, notifying you if there are any. something goes wrong.

Most important features:

  • LCD Display
  • Companion App
  • Color LED Indicator

  • Display type: LCD
  • Batteries: Lithium
  • Brand: AEGISLINK
  • Dimensions: ‎5 x 5 x 1.4 inches

  • Real-time alerts
  • Easy to mute via the app
  • Easy to install
Buy this product

AEGISLINK Wi-Fi Smoke and Carbon Monoxide Detector


Q: What is a smart carbon monoxide detector?

Smart carbon monoxide detectors have their own apps that often show you the carbon monoxide level in your home. They often make it easier to check if something is wrong with the alarm, making it easier than ever to make sure you and your family are protected from carbon monoxide.

Q: What can trigger a carbon monoxide detector?

Carbon monoxide detectors can be triggered by appliances such as gas stoves, water heaters and ovens.

These devices give off very small traces of CO, but the level can rise if there is a problem with ventilation or clogging.

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