Welcome to Marsh Instruments

For more than 140 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.