The Displacement Gauge measures the position of a rod piston inside a tube by allowing the internal dimension to be transferred outward for clear and easy reading. It helps servicemen avoid direct measurement inside confined equipment spaces where visibility and access are limited. The gauge is placed over the gauge plug, enabling accurate reference of the plug position related to the rod piston. This setup allows standard calipers and an inside micrometer to be used externally to determine the exact position within the tube. By moving the measurement point away from the equipment, the gauge improves reading accuracy and reduces handling difficulty.Attributes:• Enables accurate determination of rod piston position during service tasks.• Allows internal measurements to be read away from confined equipment areas.• Supports proper checking without direct visual access inside the tube.Applications: The Displacement Gauge is located at the gauge plug area of hydraulic assemblies, where it enables accurate checking of rod piston position by carrying internal measurements outward for easy outer reading.