Pressure gauges measure the force exerted by a gas or liquid within a system, displaying readings in units like PSI, bar, kPa, or Pa depending on the application. We stock a wide range of analog and digital pressure gauges for industrial process control, HVAC, hydraulics, pneumatics, and laboratory calibration work.

Analog vs. Digital

Analog (dial-type) gauges remain the standard for many industrial environments due to their durability, lack of power requirements, and reliability in harsh conditions. Digital pressure gauges offer higher accuracy, data logging capability, and easier readability — useful for calibration labs and applications requiring precise documentation.

Accuracy & Traceability

Gauges in this category range from 0.25% to 2.5% full-scale accuracy classes. For applications requiring certified accuracy — quality audits, regulatory compliance, or ISO/IEC 17025 lab work — look for gauges shipped with a NIST-traceable calibration certificate, available on select models below.

Pressure Ranges

We carry gauges from vacuum/low-pressure ranges (0-15 psi) up to high-pressure industrial models (0-10,000+ psi). Common connection sizes include 1/4″ NPT and 1/2″ NPT, in both bottom-mount and back-mount configurations.

Common Applications

Process monitoring in manufacturing and chemical plants
Hydraulic and pneumatic system diagnostics
HVAC and refrigeration system pressure checks
Calibration lab reference standards
Field service and maintenance

Not sure which gauge fits your application? Contact our team — we can help match accuracy class, range, and connection type to your specific requirement.

Frequently Asked Questions

What accuracy class do I need for my application?

For general industrial monitoring, a standard 1.5% to 2.5% accuracy class gauge is typically sufficient. For calibration lab or reference standard use, look for 0.25% to 0.5% accuracy class gauges with a valid calibration certificate.

How often should a pressure gauge be calibrated?

Most industrial gauges are recalibrated every 6 to 12 months, though critical or regulated applications may require quarterly calibration. Check your quality system or industry standard for the exact interval required.

What’s the difference between a test gauge and a process gauge?

Test gauges are built for high accuracy and are typically used as calibration references, while process gauges are designed for continuous field use and prioritize durability over precision.

Do you provide calibration certificates?

Yes, select models are available with a NIST-traceable calibration certificate at the time of purchase. Look for the certification filter above or contact us for a custom calibration request.