Mid-West Instruments” Model 120 gauge and switch is designed to provide a cost-effective solution for hazardous location applications. Available in aluminum or 316 stainless pressure containing components with a variety of elastomers to suit liquid or gas media requirements up to 6,000 PSIG. The unit is CSA certified for service in Class I, Division II, Group A, B, C, and D and Class II, Division II Groups F and G. Supports one or two switches in SPST and SPDT configurations. Standard or custom dial scales are also available. Available in two-, three- and four-inch dials with aluminum or engineered plastic dial chambers.