Automatic Sound Check test

When enabled, Sound Check runs once a month. If you have more than one Nest Protect, they'll all run a Sound Check at the same time. The whole test is over in less than 5 seconds.

Play Sound Check audio

You'll be sent an app notification about 5 minutes before Sound Check runs.

You can choose to skip the check or let it run. If you choose to skip, it will automatically try to run again in about a month.

If you ever want to run a manual horn and speaker test, you can run a Safety Checkup. This tests everything Sound Check does and more.

Important: When you change the Sound Check settings, it will update settings for all Protects in your home.

Nest app

1. Open the Nest app .
2. Select a Nest Protect.
3. Tap Settings Sound Check.
4. Set your preferred time range (Example: 11 AM to 4 PM) for Sound Check to run, so it will run when you're likely to be away from home and won't disturb you.

Home app

1. Open the Home app Favorites or Devices .
2. Tap and hold the Smoke & CO tile.
3. Tap Settings Sound Check.
4. Set your preferred time range (Example: 11 AM to 4 PM) for Sound Check to run, so it will run when you're likely to be away from home and won't disturb you.

If you don't want Sound Check to run at all, switch off Allow monthly Sound Check.

You can also turn off notifications if you don't want to get a message before a Sound Check test.

If Sound Check can't verify that a Nest Protect's speaker and horn are working, you'll get an app notification, and your Protect's light ring will glow yellow during Nightly Promise.

Run a manual Safety Checkup test as soon as possible to confirm that each Protect can speak and sound the alarm. It's important that you verify that you can hear each Nest Protect in your home. Double check by running the test a second time. If a Nest Protect doesn't speak or sound the alarm during a Safety Checkup, replace it immediately.

Note: If your Nest Protect's speaker doesn't work, you won't hear its voice during a Heads-Up alert or Emergency Alarm, but the horn will still be able to sound during an Emergency Alarm.

If a Nest Protect is listed as offline or doesn't report test results, it may be having trouble connecting to Wi-Fi or the Internet. It may also be that your Protects are too far apart to connect to each other (more than 50 ft or 15 m).

Sound Check audio isn't sent to or stored on Google servers. During Sound Check, your Protect's microphone listens to the alarm sound for less than 5 seconds. Learn more about FAQs on Privacy.