This application is used to configure the IoT monitoring device for domestic sewage treatment plants of type EČ SBR-2. Simply open the application, which contains instructions on how to configure your device on your home Wi-Fi network. To facilitate the process, an instructional video is also included in the description of the application. The data transfer from the smartphone to the monitoring device takes place via Bluetooth. After successfully setting up the network, you can turn off the application. It is possible to set up the network at any time, just repeat the appropriate steps.