The ifm SI0557 is a highly reliable calorimetric insertion-type flow sensor and monitor designed for the precise detection of liquid media flow. Built to withstand demanding industrial environments, it features a robust stainless steel housing with an insertion probe and a standard hexagon process connection. The sensor is equipped with an intuitive LED bar graph display (0-9) providing clear visual feedback for low and high flow indications, alongside two easily accessible setpoint buttons (S1/S2) for quick configuration. This specific model is an original OEM part, factory-calibrated specifically for Wärtsilä W-X82-B piston cooling oil flow monitoring systems, ensuring optimal performance and seamless integration.