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Thunder Scientific Corporation USA

Thunder Scientific Corporation has been the world’s leading humidity instrument manufacturer i.e. Most Precise Humidity Generator and Automated Low Humidity Generation System based on NIST “Two-Pressure” Principal for over 55 years. They continually introduce new products to help customers handle their humidity needs. Whether in a metrology lab or in challenging industrial environments, Thunder will continue to provide humidity instruments for years to come.

From hygrometer calibration equipment and software, to calibration of moisture analyzers, their products have always been traceable to the International System of Units (SI) through a national metrology institute (NIST) recognized through a CIPM MRA. In 2003, Thunder obtained NVLAP accreditation.

A privately-held company, Thunder has been headquartered in Albuquerque, New Mexico, since its founding in 1966 by Paul Bennewitz.

Thunder  current manufacturing and calibration facility is located adjacent to Kirtland Air Force Base and Sandia National Laboratories.


HUMIDITY Metrology

Model 2500 Benchtop/Mobile Humidity Generator

  • 0.5% of Reading RH Uncertainty
  • Relative Humidity Range: 10 to 95%
  • Temperature Range: -10 to 70°C
  • Automated Control of User Set-points
  •  2500 ControlLog Automation Software

Model 2900 Automated Humidity Generation System

  • 0.5% of Reading RH Uncertainty
  • Relative Humidity Range: 10 to 98%
  • Temperature Range: -10 to 72°C
  • Generate: RH, DP, FP, PPM, Multipoint Profiles
  • Multi-point Touch LCD
  • High Flow Capability of 50 L/min

ACS2520 Air Compressor System

  • Two 165 psiG Oil-Less Air Supplies
  • Dry Air To <-40 °C Ambient Pressure Dew Point
  • Sound level <70 db
  • Vibration Isolated Compressors
  • Membrane Air Dryer
  • Pressure Regulator and Gauge
  • 25’ Air Hose Extension
  • The Model ACS2520 is used with the Model 2500 or Model 2900 and will fit on the bottom shelf of the 2500 and 2900 mobile carts.

Model 3920 Automated Low Humidity
Generation System

  • Based on NIST Proven “Two-Pressure” Principle
  • Relative Humidity Range: 0.00003% to ~50%
  • Frost/Dew Point Temperature Range: -95 to 10°C
  • Generate: RH, DP, FP, PPM, Multipoint Profiles
  • 10.1 “Multi-point Touch LCD
  • High Flow Capability of 10 L/min

ACS3920 Air Compressor System

  • 100 psiG Oil-Less Air Supply
  • CO2 Free Dry Air
  • -70 °C Ambient Pressure Frost Point
  • Membrane Air Dryer, CO2 Adsorber/Air Dryer
  • Sound level <70 db, Vibration Isolated Compressor
  • 8’ Removable AC Power Cord, Remote Start Function
  • Hour Meter
  • The Model ACS3920 is used with the Model 3920 Low Humidity Generation System.

4 Port Heated Manifold

  • 4 Port Manifold Housing made from 316 Stainless Steel
  • Heated Controller Assembly
  • Flow Rate From 1.0 to 4.0 SLPM
  • Automatically Controls Temperature up to 60 °C
  • Back Pressure Regulator
  • On/Off Fused Power Switch
  • Removable AC Power Cord

Model 9500 Automated “Two-Pressure”
Humidity Generation System

  • 0.17% * R + 0.016 RH Uncertainty
  • Relative Humidity Range: 5 to 98% RH
  • Frost/Dew Point Temperature Range: -35 to 70°C
  • Generate: RH, DP, FP, PPM, Multipoint Profile
  • Based on NIST Proven “Two-Pressure” Principle
  • High Flow Capability of 10 to 100 L/min