Differential pressure, is defined as the pressure difference between two points in the system, is the difference between the pressures detected by the high-pressure and low-pressure ends of the differential pressure transmitter, differential pressure is usually used to measure the flow gas or liquid.

Applications: Exhaust gas emission / Environmental engineering / Process control areas in industries of petroleum / Chemical / Metallurgy / Electric power / Food / Papermaking / Medicine / Machinery manufacturing / Scientific experiments / Aviation and military