Differential Pressure Gauges, Switches and Transmitters

Tel: (586) 254-6500 · Fax: (586) 254-6509
6500 Dobry Dr., Sterling Heights, Michigan 48314

Introducing our new ATEX approved switches!

Let Mid-West Instrument quote your
“DIAPHRAGM SEAL” application

Diaphragm seals use a flexible barrier, (the diaphragm) to isolate a differential pressure gauge, switch or transmitter sensor from the process media. This isolation eliminates many of the adverse effects the process poses to the differential pressure gauge. Use with Mid-West models 140 & 142 diaphragm type differential pressure gauges.

The right seal for your application:
In order to recommend a diaphragm seal, we will need basic process and application information. Please fill out the online Diaphragm Seal Worksheet. We typically provide a response within 48 hrs.

Learn more about diaphragm seals

Mid-West Instrument's Differential Pressure Gauges Meet Global Demands

Mid-West Instrument, located in Sterling Heights, MI is one of the leading designers and manufacturers of differential pressure gauges and switches in the U.S. The firm's experienced engineers and technicians utilize the latest equipment for engineering, manufacturing and testing the firm's gauge and switch products.

All Mid-West Instrument products are manufactured in the United States and are backed by an industry leading Five (5) Year Warranty.

Mid-West also produces a line of “Averaging Pitot Tubes”. Whether your application calls for the Verabar, the Accelabar, or the Model 300 Inline product, you can count on Mid-West to supply the finest in manufacturing and service.

The company offers:

Global Network of Representatives and Distributors
High Quality Products Backed by a 5 Year Warranty
OEM Design Capability
Custom Manufacturing
Private Labeling Capabilities


Browse our easy to use product matrix to find exactly what you are looking for.


Buy a Gauge - Add a Switch! Avoid the hassle — do it all at once.


The Advantage for Transmitters...


Differential Pressure Gauges for Cryogenic Applications. Drop in replacements for Barton, and Prime Measurement.


	Mid-West Instrument’s 5 Year Product Warranty is the Best in the Industry.