Process Gauges

Process gauges from Marsh Instruments. With over 125 years of proven experience, Marsh offers the most complete line of process gauge instrumentation in the industry. An extensive list of designs and options makes them the intelligent and practical choice for process instrumentation.

Units are available in four unique safecase solid-front designs with both 4-1/2” and 6” dial sizes, and choice of dry or liquid filled versions, for pressure monitoring capabilities from vacuum to 20,000 psi.




  • Dial sizes of 4-1/2″ and 6″
  • Four safecase solid front designs
  • Pressure ranges from vacuum to 20,000 psi
  • Dry or liquid filled
  • Micrometer pointer


  • Compressors
  • Chemical and petroleum processes
  • Power plants
  • Oil platforms