These gauges are suitable for Air, Oil, Gases and Liquids which are not corrosive to copper, oil and steel and for General Industrial Applications such as Boilers, Pumps, Compressors, Machineries, Process & Chemical Plants. Case and Bezel is drawn steel black finish and available in Bottom, Back Connection, Direct Mounting, Surface Mounting and Flush Panel Mounting; Accuracy ± 2%; ± 3%, Dial Size 40, 50, 63, 80, 100, 150 and 250 mm.