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.
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.
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.
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.
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.
As a pressure calibration equipment manufacturer, we offer the following:
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 Ralston Engineering Team has created industry-tested, rugged, portable equipment to address 4 key aspects of calibration systems.
Connect to any standard pressure connection with quick, reliable, leak free connections without a wrench or sealant.
Rugged hand held and nitrogen based pressure sources for high, low and medium pressure and vacuum calibrations.
Volume control over nitrogen pressure sources makes calibration even more precise and efficient.