The Siershahn site, known for its advanced diagnostic solutions used by railway infrastructure operators and rail transport companies worldwide, plays a key role in the voestalpine Railway Systems Group. Here, state-of-the-art sensor and monitoring solutions are developed to ensure 24/7 track availability. The modular diagnostic systems, known as checkpoints, enable precise monitoring of trains and make a significant contribution to increasing safety and efficiency in rail operations. Various critical components on the train, such as wheel bearings, brakes or wheels, are monitored as the train travels along the track in order to prevent derailments in the worst-case scenario.