Surface diameter: 50 mm Link: radial Connecting thread: 1 / 4 npt Accuracy rating: 2.5 Use: stainless steel pressure gauge widely used in petroleum, chemicals, chemical fiber, metallurgy, power plants and other industrial sectors in the decay resistance is higher in the process of measuring the various fluid medium pressure, temperature at 85 íµ following gas liquids pressure applied to strong corrosive stainless steel components for the detection of medium and poor external corrosion environment. Can substitute the general pressure gauges.