Yes, Google Home Assistant can monitor carbon monoxide (CO) levels, but it requires integration with compatible smart CO detectors.

These detectors can detect dangerous CO levels and send alerts to your phone via the Google Home app or announce warnings through connected smart speakers and displays.

Here’s how to set up Google Home Assistant to monitor carbon monoxide levels effectively.

Step 1: Choose a Compatible Smart CO Detector

Google Home Assistant doesn’t have built-in sensors to detect carbon monoxide, so you’ll need a compatible smart CO detector.

Popular CO Detectors Compatible with Google Home:

1. Nest Protect
   • A smart smoke and CO detector designed to work seamlessly with Google Home and Nest devices.
2. First Alert Onelink Safe & Sound
   • A combined smoke and CO detector that integrates with Google Assistant.
3. Kidde Smoke & CO Detectors (with hub integration)
   • Require additional hubs like SmartThings for Google Assistant compatibility.

Also Read: How to Integrate Smoke Detectors with Google Home Assistant

Step 2: Install the Smart CO Detector

1. Install the Detector
   • Follow the manufacturer’s instructions to mount the CO detector on a ceiling or wall.
   • Ensure the detector is placed in a central location, such as near bedrooms or living areas.
2. Power the Device
   • Use batteries or a hardwired connection, depending on the model.
3. Test the Detector
   • Use the test button to confirm that the alarm functions properly.

Step 3: Connect the CO Detector to Google Home

1. Set Up the Detector’s App
   • Download the companion app for the CO detector (e.g., Nest app or Onelink app).
   • Follow the in-app instructions to connect the device to your Wi-Fi network.
2. Open the Google Home App
   • Launch the app on your smartphone.
3. Add the CO Detector
   • Tap the + icon > Set up device > Works with Google.
4. Search for the Device
   • Search for your CO detector’s brand (e.g., Nest, Onelink) and log in to your account.
5. Authorize Google Home Access
   • Grant Google Home permission to access the CO detector’s data and alerts.

Step 4: Enable Notifications

1. Turn On Alerts
   • In the Google Home app, ensure notifications for the CO detector are enabled.
2. Customize Alerts
   • Set preferences to receive alerts on your phone, smart speakers, or displays when CO levels are detected.

Step 5: Use Google Assistant for Monitoring

Common Voice Commands:

• Check Status:
  • “Hey Google, is there carbon monoxide in the house?”
  • “Hey Google, what’s the status of my Nest Protect?”
• Get Alerts:
  • Google Assistant will notify you if the detector senses high CO levels, saying something like:
    • “Warning: Carbon monoxide detected in the living room.”
• Test the Detector:
  • “Hey Google, test the CO detector.”

Advanced Features

1. Integrate with Routines

• Set up Google Home routines to take action during a CO alert, such as:
  • Turning on all lights.
  • Sending a text notification to emergency contacts.

2. Combine with Smart Thermostats

• Pair with a Nest Thermostat to shut off gas-powered appliances automatically during a CO alert.

Also Read: How to Create Emergency Alerts with Google Home Assistant

Benefits of Google Home Integration

1. Real-Time Alerts:
   • Receive instant notifications about dangerous CO levels via your phone or smart speakers.
2. Voice Monitoring:
   • Check the status of your CO detector hands-free with Google Assistant.
3. Safety Automation:
   • Automate actions like unlocking smart locks or activating ventilation systems during an alert.

Limitations

1. No Native Monitoring
   • Google Home cannot detect CO levels without a compatible smart detector.
2. Subscription Costs
   • Some devices, like Nest Protect, may require additional subscriptions for advanced features.
3. Wi-Fi Dependency
   • Alerts and monitoring require an active internet connection.

Quick FAQs

1. Can Google Home Detect Carbon Monoxide Without a Detector?

No, a smart CO detector is required to monitor and report carbon monoxide levels.

2. What Happens If Wi-Fi Goes Down?

The CO detector will still function and sound alarms locally, but Google Home won’t send remote notifications.

3. Can I Monitor Multiple CO Detectors?

Yes, you can connect multiple detectors to Google Home for whole-home monitoring.

Also Read: Does Google Home Assistant Work with Ring Alarms

4. Does Google Assistant Shut Off Appliances During a CO Alert?

Only if paired with compatible devices like Nest Thermostat or smart plugs.

5. Are There Alternatives to Nest Protect?

Yes, other smart CO detectors like First Alert Onelink or Kidde work with Google Assistant through third-party hubs.

Conclusion

Google Home Assistant can monitor carbon monoxide levels by integrating with compatible smart CO detectors like Nest Protect. With instant notifications, voice commands, and automation features, you can ensure your home’s safety and take immediate action during emergencies. Set up your devices correctly and enable notifications for reliable monitoring and peace of mind.