IO-Link - M20 modules are industrial automation components designed for robust connectivity in manufacturing environments. These modules are typically produced by leading industrial automation companies, such as ifm (Germany), Balluff (Germany), or Pepperl+Fuchs (Germany), specializing in sensor and control technology. The M20 designation refers to the standardized threaded connector size (20mm), ensuring compatibility with industrial machinery. IO-Link modules serve industries like automotive, food processing, and logistics, enabling smart sensor communication and real-time data exchange. Key products include IO-Link masters, hubs, and interfaces that integrate with PLCs for Industry 4.0 applications.