Learn how Google Nest products work together

With Wireless Interconnect, when one Nest Protect detects emergency levels of smoke or CO, all the other Protects in your home can sound the same alarm.

In addition, Protect can tell other products in your home about emergency alerts and have those products respond in helpful ways.

Disclaimer: In Australia, the light ring may only illuminate on the Protect that detects smoke or carbon monoxide, but interconnected Protects will still sound an alarm.

What other Nest products can do when Nest Protect detects smoke or CO

• Google Nest and Home speakers and displays can automatically sound your Nest doorbell's chime and announce visitors.

• With a Nest display, you can watch your Nest doorbell’s live video stream on the display’s screen and talk to visitors.

• If you're a Nest Aware subscriber, your Nest doorbell will announce the visitor's name if they're in the familiar face library.

You don't need to upgrade your older products to get them to work with a newer one because they'll work together seamlessly. For instance, while 1st gen Protect smoke alarms don't have all the features of 2nd gen Protects, they will all speak to notify you when smoke or carbon monoxide is detected and sound the alarm if needed. The same goes for Nest thermostats and cameras. You can have 1st, 2nd and 3rd gen Nest Learning Thermostats control your multi-zone system together in the same home.

Older products that you set up with the Nest app will work seamlessly with newer ones that you set up with the Home app. We’ll also continue to add support in the Home app for older products.

When you enable presence sensing in the Home app (or Home/Away Assist in the Nest app), your phone and the sensors in your products can help tell when you've left or come back home. This can make each one better at doing the right thing at the right time. 

For example, if you have a thermostat, its occupancy sensors can help your system determine whether someone’s there or not. That way, all your other Nest products can automatically do the right thing based on where people are.