The high cost of smart home electronic equipment limits its use in everyday life and raises concerns about the mismatch between the level of comfort offered by such technology and its cost. Today's consumers have access to less sophisticated gadgets for remote control of home appliances. There are smart sockets that solve most of the difficulties that arise in everyday life at a low cost. An electromagnetic relay capable of turning the power on and off at the socket contacts, as well as turning on and off a household appliance, the plug of which is inserted into the specified socket. This is part of the electrical circuit of the smart plug. The socket "does not know" which gadget is plugged into it. The most important element is that the power of the household appliance does not exceed the limit indicated in the technical data sheet of the socket. Relay commands to perform “on” and “off” create a “controller”, which is an electronic circuit of a “smart socket”, which is controlled by the program loaded into it and control signals from external sources. Depending on the model, the controller can be mounted in the socket control panel or directly inside the socket itself.