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Test & Calibration

High Pressure Equipment is our Specialty

Double EE Service, your trusted partner for pressure testing calibration equipment. Our state-of-the-art calibration lab specializes in servicing both digital and analog gauges from top brands like Crystal, Barton, Thermoprobe, and TechCal. Proudly serving the high plains area, we are committed to ensuring your equipment operates at peak performance. Let us help you maintain precision and reliability in your operations!

Crystal Engineering

MaxPro Technologies

Ralston Instruments

Barton Chart Recorders

TechCal Chart Recorders

Spy Jeep Detectors

Ametek Test & Calibration

NoShok

Rice Hydro

ThermoProbe

Knapp Poly Pigs

PIE (Practical Instrument Electronics)

Reotemp Instruments

ThermoProbe Inc.

Tinker & Rasor

Crystal Engineering/Ametek Calibration

AMETEK Sensors, Test & Calibration is one of the world’s leading manufacturers and developers of calibration instruments for temperature, pressure and process signals as well as for temperature sensors both from a commercial and a technological point of view.

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Ralston Engineering

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 Why Choose Ralston Instruments?

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Maxpro

MAXPRO® Technologies Inc. has served as the exclusive North American distributor for Maximator® high-pressure air-driven liquid pumps, gas boosters, air amplifiers, valves, fittings, and tubing for over 25 years. Maximator is recognized for its industry-leading high-pressure solutions. In addition to our broad selection of standard products and systems, our team leverages engineering expertise and in-depth understanding of high-pressure systems to design custom solutions for unique, specialized applications.

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Contact

(701) 572-2332

2210 4th Ave West

PO Box 2417

Williston, ND 58801

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© 2025 by Double EE Service, Inc.

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