Additel Process Calibration Tools

Additel Logo-2

Additel Corporation is one of the leading worldwide providers of process calibration tools. We are dedicated to designing, manufacturing, and delivering the highest quality handheld test tools and portable calibrators for process and calibration industries. For many years Additel has successfully developed automated pressure calibrators, digital pressure test gauges, digital pressure calibrators, pressure test and calibration pumps, and multifunction process calibrators. Recently Additel has added a line of high level temperature products as well. Additel products are currently used in over 90 countries worldwide, with a worldwide sales and support channel in place to assist you. Product quality and customer service along with innovative engineering have been our top priorities and will continue to be our guiding principles going forward. We are committed to customer satisfaction through quality products, competitive pricing, unmatched services/technical support and continued introduction of new and innovative products.


Qualified Technicians

Our qualified technicians can get your equipment calibrated for you or get you the test & calibration equipment you need for your company. To guard against an incorrect measurement of any kind, our technicians can routinely calibrate or test your pressure, temperature and Signal Instruments.

  • Calibration of Pressure, Temperature and Signal Instruments
  • Pressure and Temperature Gauge Calibration and Certification
  • Chart Recorder Calibration
  • Dead Weight Tester Certification
  • Repair the MaxPro Test Systems
  • Repair of Air Driven Maximator Test Pumps
  • Test or Calibrate Torque Wrenches

Quality Manufacturers

We work with quality manufacturers for the best test and calibration equipment on the market. We bring these excellent products to the oil and gas industry for North Dakota and Montana.

Manufacturers Represented:

  • 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
  • Pelican Products
  • PIE (Practical Instrument Electronics, Inc.)
  • Reotemp Instruments
  • ThermoProbe Inc.
  • SuperLok USA Valves and Fittings
  • Tinker & Rasor