In motor vehicle manufacturing, the differential pressure transmitter with a capillary tube is integral to the compressed air systems used in assembly line operations. This component monitors pressure differentials across critical points in pneumatic circuits, ensuring consistent airflow to automated tools and robotic arms during vehicle assembly. By detecting variations in pressure levels, it enables precise control of pneumatic actuators, which are essential for tasks such as paint spraying, component positioning, and tire inflation. The capillary tube design allows for reliable signal transmission over long distances, maintaining accuracy even in high-vibration environments typical of factory floors. Its integration into test benches and quality control systems supports the calibration of pneumatic components, ensuring compliance with stringent safety and performance standards. In secondary applications, it is also used in logistics conveyor systems to regulate air pressure for material handling, enhancing efficiency across the production process.