Oill filled pressure gauge is filled with damping liquid good performance of shock proof.This sort of maters is suitable for locations where the pressure of medium changes intensely and pressure shock proof exists, or pressure is released suddenly in the course of manufacturing, or working environment shock largely. The meter can measure average of gas and liqu id mediums.Thus damage to meter induced byintensive fluctuation and environmental shock can be over come smoothly and accuracy of freading is ensured. www.allgakind-instrument.com