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GROTEC sensors are devices or components that can sense pressure signals and convert them into usable output electrical signals according to a specific pattern. Pressure sensors typically consist of a pressure-sensitive element and a signal processing unit. Depending on the type of test pressure, pressure sensors can be classified into gauge pressure sensors, differential pressure sensors, and absolute pressure sensors. Pressure sensors are one of the most commonly used sensors in industrial practice, widely applied in various industrial automation environments, including water conservancy and hydropower, railway transportation, smart buildings, production automation, aerospace, military industry, and petrochemicals.