GEO Hygro Mini SP Humidity Generator

The Hygro Mini Portable Humidity Generator/Calibrator is the smallest unit available with variable control for both humidity and temperature.


  • Battery powered
  • Orientation does not affect accuracy
  • Controls range of both Temperature & Humidity
  • Any programmed set-point can be reached within 3 minutes

Key Specifications

  • Five hours of battery life
  • Rh accuracy of + - 1.0%
  • Temperature accuracy of + - .4°C
  • Rh range of 10 - 70% Rh
  • Temperature range of 10°C beneath ambient to 55°C

Full Specifications

Uncertainties Temperature ± 0.4°C or better
  Humidity 10-70%RH ± 1.0% RH or better
Controlled Range Temperature 10°C below ambient to 50°C
  Humidity 10-70% Rh at 23°C
Resolution Temperature 0.1°C
  Humidity 0.1%RH
Stability Temperature ±0.2°C
  Humidity  ±0.3%RH or better
Uniformity Temperature ±0.2°C @ 50%RH
  Humidity  ±0.3%RH @ 10% to 50%RH
±0.4%RH @ 50% to 70%RH
Dew Point Range   10°C to 45°C
Calibration System Accuracy RH and Temp ±0.5%RH and ±0.1°C
Chamber Probe Temp Compensated Temperature  -40°C to 60°C 
  Humidity  0% to 100%
System Performance Verification   2-pressure method/reference compare
Calibration Certification   Traceable to NIST
Temperature Change Rate Cooling 1°C / Minute (Typical)
  Heating  2.5°C / Minute (Typical)
Interface with Host Computer   USB (USB to USB cable included)
Display/Keyboard Features   Customized PID Controller, Front Panel
Interface and LCD display
Software/Drivers   User friendly software included, free of charge. Upgrades include database management, and customer probe history logs for future reference.
Power Requirements   Universal 110/220VAC, 50/60 Hz
Weight   10 pounds
Internal Chamber Dimensions   Internal Chamber fits one Rh probe from 6 – 32 mm.
Standard Calibration Doors   Probe port sizes 12.5mm, 19mm and 25mm
Custom Calibration Doors Available   Port sizes from 6mm to 32mm
Power Supply   14.4V DC @ 3 A (Power Supply for Calibrating Probes)


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