With the abundance of industrial equipment manufacturers in todays market, selecting the correct process observation equipment for your application can be a daunting task. Time, budget, safety, and design constraints all pose challenges that need to be met head on. At the John C. Ernst Co, Inc. we understand the challenges that our customers face and we have the expertise to provide engineered solutions where other manufactures fall short. The John C. Ernst Company has been a manufacturer of process observation equipment since 1969. Our products include Sight Flow Indicators, Liquid Level Gauges, Sight Windows, Flow Meters, Flow Switches, and Level Switches. Whether you are working on a large project or need one small unit, we can help choose the appropriate product. With substantial Inventory on hand we offer same day shipping on most items. And, we also offer engineered solutions tailored to meet the needs of our customers and the industries we serve such as: Oil & Gas Boiler Room Manufacturing Pharmaceutical Food & Beverage Petrochemical Utilities Original Equipment Manufacturers (OEM) Chemical Mining Maritime Agriculture