# Features The S2 nodes are used to build star topology radio networks for Boomerang monitoring systems. The S2 networks are used to wirelessly connect the sensors providing readings to the system. The S2 module shall be used in industrial or business environment. The S2 module has the following functionalities: * it collects measurement data from different type of sensors * it communicates wirelessly with the other S2 modules * it communicates via RS-232 (UART) interface * it enables radio parameters modification over UART * it enables FW reprogramming over UART --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://help.boomerang3.com/s2-radio-system-manual/s2-system-description/features.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.