Slide Humidity Generation & Calibration Equipment Supporting Metrology Laboratories Worldwide Slide The Ultimate
Solution for
Precision
Humidity
Generation Achieve unparalleled precision and control with the Model 1220 Humidity Generation System. This cutting-edge solution delivers unmatched performance for your critical humidity calibrations. New Model 1220 More Info Slide Primary
Calibration
Innovation Designed to replace the Model 2500, the Model 2900 takes humidity generation to the next level through innovative technology and vastly superior performance. Model 2900 More Info Slide The Model 3920
Leading Edge Design Thunder also provides a low humidity generation system; the Model 3920 produces precision frost point/dew point control with new style Ultrahigh-Purity diaphragm valves featuring a multi-point touch LCD screen and includes a keyboard interface. Model 3920 More Info Slide Accredited
Calibration
Services Thunder has the industry’s leading uncertainties for humidity measurement. Thunder’s calibration laboratory maintains its accreditation through NVLAP. More Info

The Most Accurate Humidity Calibration Standards in the Industry

Thunder Scientific® offers the industry's best solution to your humidity calibration workload and is the world's leading manufacturer of NIST-proven, two-pressure humidity calibration systems. Thunder has manufactured a full line of humidity generators, software, and accessories for over 55 years and provides superior NVLAP accredited dew point and %RH calibration services (NVLAP Lab Code: 200582-0).

More than 1200 clients constitute a testament to insistence on quality, accuracy, and customer satisfaction. Our systems, purchased by many national standards laboratories around the world, represent the full spectrum of companies who require the tightest of tolerances for their humidity calibrations.

We provide calibration solutions to these types of industries:
  • National Standards Laboratories
  • U.S. Military Metrology Labs & Defense Agencies
  • Industrial Manufacturing Companies
  • Energy Utilities Power
  • U. S. Government Agencies
  • Medical & Health Care Products
  • Research Laboratories
  • Agriculture, Forestry, Environmental, Weather & Oceanography Agencies
  • Aerospace Metrology Laboratories
  • Pharmaceutical Manufacturers
  • Industrial Chemical Facilities
  • Higher Education Institutions
  • Foreign Government Agencies
  • Food & Consumer Goods
  • Computer Electronics Technology

Thunder Scientific also offers calibration services for a wide range of humidity generating/measuring instruments. Thunder Scientific is currently the only NVLAP accredited source to offer humidity calibrations that are traceable to the International System of Units (SI) through a national metrology institute (NIST) recognized through a CIPM MRA with uncertainties at (0.17% * R) + 0.016 %RH.*

We constantly research and improve our humidity systems to meet the changing requirements of industry. Sign up for our email newsletter, Thunder Struck, to stay up-to-date with our latest product innovations.

* Represents an expanded uncertainty using a coverage factor, k=2, at an approximate level of confidence of 95%. Uncertainty for relative humidity is not specified below 0 °C.

Thunder Scientific's NVLAP Accreditation

NVLAP Lab Logo

Thunder Scientific Corporation is pleased to announce that we currently retain renewed accreditation through the National Voluntary Laboratory Accreditation Program (NVLAP), (NVLAP Lab Code: 200582-0) which is administered by the National Institute of Standards and Technology (NIST). Thunder Scientifics’ calibration laboratory follows strict guidelines to maintain its lab code (Laboratory Code: 200582-0). Click here to view our NVLAP Scope of Accreditation or view our NVLAP Certificate of Accreditation.

Humidity Calibration Equipment

Model 1220 Humidity Generator

The 1220 Humidity Generation System is a self-contained system capable of producing atmospheres of known humidity using the fundamental "two-pressure" principle. This system is capable of...

Model 2900 Humidity Generator

This is the newest “Two-Pressure” Humidity Generator which can produce relative humidity from 10 to 95 %RH and has an increased gas flow rate of 10 to 40 L/min which helps to improve...

Model 3920 Low Humidity Generator

The Model 3920 automated low humidity generating system is based on the fundamental, NIST proven, "two temperature" and "two pressure" principles. This system is capable of continuously s...

Model 4PHM Four Port Heated Manifold

The Four-Port Heated Manifold Accessory comes with four 3/4″-16 straight thread adapters standard and automatically controls the temperature from ambient to 60 °C. The manifold is equipped...

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