The Hengst R901025310, also known as model WO-S01-2,2-M-10, is a high-quality visual-electrical clogging indicator designed for hydraulic filtration systems. This device reliably monitors the differential pressure across a filter element, providing both a visual signal via a red pop-up pin and an electrical signal to your control system when the filter needs servicing. Engineered for durability and precision, it triggers at a response pressure of 2.2 bar. Its robust construction and M12 electrical connector ensure a secure and stable connection, making it an essential component for preventative maintenance and ensuring the optimal performance and longevity of your hydraulic equipment.