Shock-proof pressure gauges are mainly used for pressure detection in metallurgical, electric power, petroleum, chemical, machinery and other industrial sectors. Pressure gauges rely on internal glycerine or silicone oil and supporting buffer devices and other measures to play a good seismic performance. It is suitable for the occasions where the pressure of the measured medium has strong pulse changes or pressure shocks and often sudden unloading in the production process, as well as places with large environmental vibration. The instrument can measure the average value of the gas and liquid pulsating pressure to overcome the damage caused by the strong pulse of the medium and the environmental vibration to the instrument and ensure the accuracy of the reading.