Get started using your Nest Protect smoke and CO alarm

Here you’ll find some articles to help you get started using your Nest Protect. We’ve also included a downloadable version of the User’s Guide that comes with your smoke and CO alarm.

To help you get started, we’ve provided some articles such as how to install and set up Nest Protect, learn what the lights and sounds mean, and how to change settings.

Download documents included with your Nest Protect

Nest Protect includes a printed User’s Guide in the box to get you started using it. Read the User’s Guide before installing.

If you’re not sure which generation and type of Nest Protect you have, see the article below:

How to tell which Nest Protect you have >

2nd-generation Nest Protect

1st-generation Nest Protect

Note: These guides should open directly in your browser. If you’re having trouble viewing them, you may need to download and install a PDF reader such as Adobe Acrobat Reader.

How to set up and install your Nest Protect

Learn how to add Nest Protect to your Nest Account and install it.

Nest Protect basics

Here are a few basics on how to silence Nest Protect, learn about Pathlight and how to change its settings and know the differences between Heads-Up and Emergency Alarms.

Learn more about how Nest Protect works

Your Nest Protect does some work behind-the-scenes like automatically running a Self Test to check its batteries and sensors or running a Sound Check (2nd gen) to check its speakers, buzzer and light ring.

You should also run a Safety Checkup at least once a month to check that your Nest Protects are working properly.

Troubleshooting Nest Protect

These articles explain what to do when you encounter error codes or have Wi-Fi connectivity issues, when you need to replace the batteries, and ways to clean your smoke and CO alarm.





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