The same system that guards the home can also run it. Smart plugs, relays and wall switches put heating, lighting and appliances under the app’s control — on a schedule, by scenario, or with a tap from anywhere.

Scenarios connect security and comfort: lights that switch on when the alarm fires, water that shuts off at the first leak, sockets that cut power to a forgotten iron. Power-supply accessories keep hubs and detectors running through outages. Pick a direction below to explore.