• Gauges & Pneumatics
    Are you under pressure?
    Do you need a gauge ASAP?
    Master Gauge carries Millions of gauges and other pneumatic devices for your everyday industrial needs.
    From Manufactures you can trust.
    Such as: USG/Ametek, Trerice, Marsh Bellofram, WIKA, Dwyer, Marshall, PIC, Reotemp and many more.
  • Thermometers & Wells
    Are things heating up?
    Has your go to guy given you the cold shoulder?
    Master Gauge carries Thousands of Bi-Metal and Industrial thermometers and wells for all your temperature and remote reading needs.
    From Digital to Economic we can cover any need or budget.
  • Diaphragm Seals
    Are you in a tight squeeze?
    Master Gauge carries Hundreds of Diaphragm Seals ranging from Process gauge Assemblies to Special Sanitary needs for food usage.
    From Manufactures such as:
    USG/Ametek, Trerice, Reotemp and many others.
  • Discontinued & NOS
    Looking for something Discontinued?
    No one else knows the part number?
    At Master Gauge our database of millions of old or discontinued USG/Ametek Part number's going back to 1947, Many of which we have in stock or can find.
    Master Gauge can help you find the exact match or current model of the gauge you're looking for.

Hello and Welcome to MASTER GAUGE CO.

At Master Gauge Co. we can help you find anything you're looking for, from Gauges to thermometers from standard items to custom made.
We carry a wide range of industrial products from various manufacturers to fit you or your customers needs.
We also do custom dial work, instrument repair and diaphragm seal assembly in house to meet your needs as fast as possible.

We only have one question for you.

What may we help you with today?

  • Pressure Gauges
  • Bi-Metal Thermometers
  • Industrial Thermometers
  • Wells
  • Diaphragm Seals
  • Accessories

You can trust

  • Ametek
  • M&G
  • WIKA
  • Trerice
  • Marsh-Bellofram
  • PIC
  • Dwyer
  • Marshall
  • Reotemp