A safe zone or virtual fence is a perimeter which defines the area you would like your pet to remain in.
When your pet leaves or enters this zone, you’ll receive a notification on your smartphone. This is a push-notification (not SMS) and requires an internet connection to be received. Sending times depend on network providers’ coverage and the smartphone-platform itself. You can also enable email notifications in your account settings on the Tractive website.
The safe zone is displayed as a red circle in the map view. You can find more information on how to set it up and activate it here. If you have more than one tracker, you have to set up the safe zone for each tracker.
If you don't get notifications, even though your safe zone is active, please take a look at the following blog post.