The actuator not only switches the load (e.g. socket with device) but also measures the current on the switching channels. This way, for example, you can determine whether your washing machine or dryer is still running and have yourself notified when they are finished. If you don’t have a separate media control, you could also use it to detect whether, for example, a TV is on and, depending on the position of the sun, close the blinds or dim the lights in the evening. There are hardly any limits to your imagination.