IO-Link - M34 modules are a category of industrial automation products, not a specific brand. These modules are part of the IO-Link system, an open standard communication protocol (IEC 61131-9) used in industrial automation. IO-Link M34 modules typically feature robust M34 connectors, designed for harsh industrial environments. They are manufactured by various global companies, including German firms like Siemens and IFM, as well as other industrial automation leaders worldwide. These modules serve industries such as manufacturing, automotive, and process automation, providing reliable sensor and actuator connectivity. Key products include M34 master modules, hubs, and interface solutions that enable smart device communication in Industry 4.0 applications.