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About Mid-West® Instrument

Mid-West® Instrument was founded based on innovation back in 1958. At that time a customer approached Mid-West® Instrument with the need for monitoring pressure drop across a filter. The founders, a group of engineers, developed the model 120 differential pressure gauge. It was then a heritage of working with customers to solve their application needs was born. A second customer approached Mid-West® Instrument with the need for a leak detection gauge, the founders again developed a solution with the model 109 which was based on differential pressure. At this point Mid-West Instrument set out to find more customers with applications that required solutions.

Over the years the product line expanded and as applications warranted, the materials of construction expanded. Applications included all manner of monitoring pressure drop across filters from compressed air, water, lube oil, fuel oil to Natural Gas. Applications for simple indicators rather than differential pressure gauges led to a line of differential pressure indicators for direct mount onto filters rather than through instrument tubing. Complicated applications such as indicating flow from pressure drop across orifice plates, venturis and averaging pitot tubes as well as Liquid level indication were addressed and solutions were created. Hydronic balancing applications and the testing of backflow prevention assemblies led to the design and development of Portable Differential Pressure Instrument Test Kits.

The addition of alarm switches and transmitters to the product line led to the development of switch and transmitter designs to meet the needs of hazardous locations and explosion risk areas which bear national and international certification marks from CSA, UL, ATEX, IECEx, and/or KOSHA.

The Mid-West® Instrument team is ready to serve and address any application you may have.

Mid-West® Instrument develops proprietary designs that are manufactured exclusively for Original Equipment Manufacturers. Mid-West® Instrument differential pressure gauge, switch, or transmitter can be customized to the customer’s exact specifications.

As we have grown so has our Global presence. You will find Mid-West® Instrument differential pressure gauges, switches and transmitters in use on every continent!

Our facilities are climate-controlled state of the art factory complete with the latest CNC machine tool technology, test equipment, calibrations standards, Oxygen clean room and third party certified quality system. This allows us to maintain precise tolerances and product quality.

The team at Mid-West® Instrument is supported in the heritage of innovation by not only creatively solving application issues for customers, we constantly innovate inside the company to improve quality, processes, and efficiencies. This has led to our industry best lead times for both standard and customized products.

The entire team at Mid-West® Instrument is focused on customer service. Mid-West® is focused getting the right product, shipped on time, when promised, and as ordered. Our core values for both customers and employees is to tell you the truth, not just what you want to hear.”

Our employees understand and apply “Our Core Values” daily which lead to superior customer service.

The Mid-West® Instrument team is ready to serve and address any application you may have.

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