For more than 150 years, the Marsh Instruments division of the Marsh Bellofram Group of Companies has been synonymous with the design, manufacture and supply of the highest quality pressure gauges and thermometers, with a portfolio that has developed into the most comprehensive gauge lines in the world. Our Marsh Instruments pressure gauges are used in countless applications where accuracy, dependability and durability are essential. Whether a standard or a specially designed pressure gauge, Marsh Bellofram stands ready to provide a highly rugged precision instrument, adaptable to wherever pressure or temperature measurements are required.

Accurate. Reliable. Comprehensive.
From vacuum to 20,000 psi. With copper alloy, 316 stainless steel, or Monel internals. Dial sizes from 1” through 10”. From pneumatics to the most demanding industrial process.

Whatever your needs, Marsh makes an instrument for your application. Process industries have relied on us for more than 150 years. You can trust our engineering and manufacturing expertise to help keep operations running consistently and smoothly.