These gauges are ideal for measuring Air, Oil Gases and Liquids that are not corrosive to copper, oil and steel. These are best for used in general Industrial Applications such as Boilers, Pumps, Compressors, Machinery's, Process S Chemical Plants. Case and Bezel is drawn steel with black finish and is available in Bottom, Back Connection, Direct Mounting, Surface Mounting and Flush Panel Mounting. These are available in all standard process connections NPT, BSP etc. It possesses Accuracy of ± 2% and is available in Dial Sizes of 40, 50, 63, 80,100,150 and 250 mm.