The Smart relay switch gives you the chance, inter alia, to turn on/ off the water heater no matter where you are. For example, have you forgotten the water heater on? Do you wish that the water was hot in your house, whenever you wanted? Do you wonder if you can turn on your electric stove, while you are away from home? Do you want to measure the consumption of the water heater, the electric stove and your whole place? By installing the ‘smart’ relay switch in your electrical panel, you get the possibility to adjust the electrical consumption in your house and therefore save even more money.