Google Nest Secure Expansion Pack Kit with Detect Sensor (2-Ea) and Tag

The Nest Secure alarm system starter pack comes with 2 Nest Detect sensors and 2 Nest Tags, but some homes need more. Nest Detect sensors can tell you when a door or window opens or someone's in a room. Nest Tag makes it easy to arm and disarm Nest Secure without a passcode. You can put 1 on your keychain, or give 1 to people you trust. And with the Nest app, you'll always know what's happening at home.