• Pressure: Switches, Transmitters, Gauges, Manometers, Test Instruments
• Air Velocity: Sensors, Pitot Tubes, Wind Meters, and Test Instruments
• Flow: Flow Meters, Ultrasonic
• Level: Hydostatic, Ultrasonic, Capacitive, Paddle Wheel, Tuning Fork, Pump Controllers
• Temperature: Sensors, Thermometers, Infrared, Temperature Controllers, Switches, Transmitters
• Process Control: Dust Collection, Panel Meters, Particulate Sensors, Timers, Process Indicators
• Humidity and Air Quality Sensors: Hygrometers, Switches, Humidity and Carbon Dioxide
• Test Equipment
• Valves

Many of these instruments are widely known by their individual brand names, such as Magnehelic® and Spirahelic® pressure gages, Photohelic® switch / gages, Rate-Master®, Mini-Master® and Visi-Float® flowmeters, Slack-Tube® and Flex-Tube® menometers, and Dwyer® pressure switches.

Other established Dwyer brands, including Flotect® flow and level switches, Hi-Flow® valves, Self-tune® temperature controllers and Iso-Verter® signal converters/ isolators, are the products of companies that are now divisions of Dwyer Instruments – Mercoid, W. E. Anderson, Proximity Controls and Love Controls.

Founded in 1931, Dwyer Instruments moved its manufacturing and headquarters from Chicago, Illinois, in 1955, to newly constructed, greatly-expanded facilities in Michigan City, Indiana. The company has since added four more Indiana facilities – in Wakarusa, South Whitley, Kingsbury and Wolcott – as well as manufacturing facilities in Anaheim, California; Fergus Falls, Minnesota; Kansas City, Missouri; and Naguabo, Puerto Rico.

In addition to making and selling quality precision instruments, Dwyer is committed to a standard of customer service – including competitive prices and knowledgeable, courteous technical support – that generates and sustains long-term relationships.

For more information on all products please visit Dwyer Instruments website (www.dwyer-inst.com)

New applications are discovered daily through a cooperative effort between Dwyer and its customers. It has been these relationships that allow Dwyer to continue to develop market demand products and further our success from leading established brand names such as the Dwyer Magnehelic® differential pressure gages, Dwyer Photohelic® pressure switch/gages, Dwyer Rate Master® flowmeters and rotameters, and  Dwyer Hi-Flow® valves. Dwyer's low cost mass flow controllers are also popular.

In addition to new product development, Dwyer has added to its success through several acquisitions and has achieved additional market recognition. Respected names such as Mercoid Controls, Love Controls, W.E. Anderson and Proximity Controls have created new markets and further build on the solid reputation that Dwyer has and continues to sustain. Dwyer Instruments' ability to successfully diversify demonstrates Dwyer’s managed approach to the marketplace. This approach continues to maintain stability of Dwyer Instruments, therefore providing a basis for positioning Dwyer as a leader in providing knowledgeable, prompt, and courteous customer service.

power plants, industrial factories, laboratories, hospitals, various manufacturing plants, green buildings and many more.