Perma-Cal® Industries | High Performance Pressure Gauges

Solving Your Toughest Pressure Measurement Problems Since 1980

Perma-Cal® Industries, Inc. has been a leader in quality and design of Direct Drive Pressure Gauges since 1980. Reliable in the most rugged environments, Perma-Cal® gauges are engineered to withstand hostile applications including intense vibration, shock, and over-pressure.

For this reason, Perma-Cal® gauges are trusted in Aerospace, Military, Marine, Petrochemical, Industrial, and Commercial Diving applications worldwide.

USA Parts, USA Made, USA Owned
Aerospace Quality | Military Trusted
Lifetime Limited Warranty

Our Product Lines

Engineered for extreme environments. Trusted in aerospace, industrial, and marine applications.

Industrial & Process Gauges

Robust construction for continuous operation in harsh industrial environments.

• Gearless, direct drive design
• High vibration resistance
• Wide pressure ranges

Precision Test Gauges

High accuracy instruments for calibration and testing applications.

• ±0.25% accuracy
• Direct drive mechanism
• Long-term stability

Ray Series High Visibility

Enhanced readability with large dials and high-contrast markings.

• Large 4.5" and 6" dials
• UV-resistant graphics
• Ideal for outdoor use

Gauges on Welded Diaphragm Seals

For corrosive, viscous, or high-temperature media.

• Hermetically sealed
• Corrosion-resistant materials
• No fill fluid required

Receiver Gauges

Designed for refrigeration and HVAC systems.

• Dual-scale readings
• High overpressure protection
• Compact design

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Skydrol Process & Test Gauges

Compatible with Skydrol and other phosphate ester fluids.

• Chemical resistance
• Aerospace certified
• Long service life

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Pneumo Depth Gauges

Used in commercial diving and underwater operations.

• Waterproof construction
• High visibility dial
• Shock resistant

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Caisson Gauges

For pressurized chamber monitoring in construction.

• High safety standards
• Reliable under constant pressure
• Easy to read

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Aerospace Gauges

MIL-SPEC compliant for flight and ground support.

• Qualified to military standards
• Extreme environment tested
• Lightweight and durable

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Custom Gauges

Tailored solutions for unique applications.

• Custom dials and scales
• Special materials
• OEM integration

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Temperature Solutions

Integrated temperature compensation and sensors.

• Stable readings across temps
• Wide operating range
• Precision engineering

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Safety-Enhanced Gauges

With blow-out back and other safety features.

• Blow-out back design
• Shatter-resistant windows
• Pressure relief

View Full Product Catalog

Why Choose Perma-Cal®?

Only One Moving Part

Gearless, direct drive design eliminates gears, levers, and pivots—reducing wear and increasing reliability in high-vibration environments.

Aerospace Quality

Trusted by military and aerospace programs. Built to meet stringent quality and performance standards under extreme conditions.

Lifetime Warranty

We stand behind our products with a lifetime limited warranty—proof of our confidence in durability and performance.

Made in USA

100% USA parts, manufacturing, and ownership. Supporting American jobs and quality control from start to finish.

Customization Available

Add your logo, custom scales, or unique configurations. We build gauges to solve your specific measurement challenges.

Fast Delivery & Support

Easy ordering, fast lead times, and dedicated customer service ensure you get what you need when you need it.

Frequently Asked Questions

What is Gearless, Direct Drive technology?

Perma-Cal’s direct drive mechanism uses a single moving part—a piston connected directly to the pointer. This eliminates gears, levers, and pivots, reducing wear and increasing reliability, especially in high-vibration environments.

Are Perma-Cal gauges suitable for aerospace applications?

Yes. Perma-Cal gauges are trusted by military and aerospace programs due to their durability, accuracy, and ability to perform under extreme conditions including shock, vibration, and temperature fluctuations.

What warranty do you offer?

We offer a lifetime limited warranty on all Perma-Cal pressure gauges, reflecting our confidence in their long-term performance and durability.

Can I customize my gauge?

Absolutely. We offer full customization including custom dials, scales, logos, materials, and mounting options. Contact us to design a gauge for your specific application.

Where are your gauges manufactured?

All Perma-Cal gauges are proudly made in the USA at our facility in Minden, Nevada. We use USA-sourced parts and maintain full control over quality and production.

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High Performance
Gearless, Direct Drive
Pressure Gauges

1

USA

Lifetime

Solving Your Toughest Pressure Measurement Problems Since 1980