g.io provides remote access to your home using three components:
the g.io App, a Home Hub, and a Gate Sensor.
the g.io App

The g.io App lets you control everything remotely, see what’s happening at home, and get alerts if something’s off.
Home Hub

The Home Hub is the brain—it wirelessly talks to other components and controls the gate based on your location.
Gate Sensor

This sensor lets g.io know whether your gate is open or closed.