Monster Central Power Control GWT 100 is a replacement Gateway, in case the one provided in your Kit is lost or accidentally damaged. The Gateway is the key component in the Power Control ecosystem, ensuring the link between your Power Control module and the App.
It's ridiculously simple and it does exactly what you want it to do. It controls and monitors the power in your home from anywhere in the world. And you can set it up yourself in less than 15 minutes. Because it's modular. You purchase and set up only what you need.