Tactical Laboratory Precision
Introducing the ControlPak, the first manual pressure controller specifically engineered for calibrating pressure instruments with nitrogen in the field. It’s portable, practical, and built to last.
Precise Pressure Control Where You Need It Most
One of our most trusted and time-tested products, a Calibration Manifold allows you to fine tune pressure at the source. Leave the bulky rig of valves and fittings back at the truck. This handheld, compressed gas controller gives you the freedom to perform static pressure calibration directly at the device under test.
No Glass. No Mercury. No Problem.
Designed for speed and accuracy, the new Field Gauge LC10-TA Digital Probe Thermometer makes it easy to measure and monitor temperature. No risk of broken glass. No exposure to mercury. Just fast, clear measurements from a sturdy, reliable temperature gauge.
Stable, Consistent Pressure from a Durable, Lightweight Pump
The new QTHP 5000 psi / 35 MPa Hydraulic Hand Pump is easy to use and built to last. Machined from solid stainless steel, it provides steady, stable pressure in a precision tool that you can hold and pump with one hand. The QTHP - a smart addition to any technician’s toolkit.
Pressure and Vacuum in One Versatile Pump
Ideal for tests that require both pressure and vacuum, the Pneumatic Pressure / Vacuum Scissor Hand Pump allows you to switch from pressure to vacuum with a simple turn of the knob.
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Get a QuotePressure Calibration Equipment Manufacturer
We provide complete pressure calibration solutions for a wide range of applications both in the laboratory and in the field. All of our products are designed to save time and eliminate the guesswork that often accompanies critical pressure testing, maintenance, and repair operations. Our product catalog includes intrinsically safe digital pressure calibrators, hand pumps, compressed gas controllers, hoses, adapters, and full calibration kits, featuring our signature Quick-test range of fast, fail-safe connections. All of our products are made in the USA using superior design and manufacturing techniques.
In 2016 we introduced the world's first laboratory grade digital pressure calibrator including digital pressure calibrator software.
Laboratory Grade Digital Pressure Calibrator
Pressure Calibration Products
As a pressure calibration equipment manufacturer, we offer the following:
Why Choose Ralston Instruments?
- 40 years of experience
- Made in the USA
- ISO 9001:2015 certified company
- Advanced manufacturing techniques
- User-oriented design features
- Quality calibration solutions and hand pumps
- Reliable service
For fail-safe precision calibration tools like adapters and hoses, Ralston Instruments is a one-stop destination. Contact our experts with your questions or to get a quote.
The Four Keys to Pressure Calibration
The Ralston Engineering Team has created industry-tested, rugged, portable equipment to address 4 key aspects of calibration systems.
