Starting at $24,995.00

Not in stock. Usually ships in 4-6 weeks [?]

Need Help? Call 1-800-884-4967 8:00am to 5:30pm ET


  • 5 to 95% RH humidity control range
    • <±0.1% RH stability
  • 32 to 140°F (0 to 60°C) temperature control
    • <±0.018°F (0.01°C) stability
  • Chamber temperature gradients
    • <±0.09°F (0.05°C) at 59 to 122°F (15 to 50°C)
    • <±0.18°F (0.1°C) at 41 to 140°F (5 to 60°C)
    • <±0.27°F (0.15°C) at 32 to 41°F (0 to 5°C)
  • Typical calibration uncertainty (k=2)
    • ±1.5% RH at 73.4°F (23°C)
    • ±0.27°F (0.15°C) at 59 to 122°F (15 to 50°C)

What's in the Box

  • Touch screen user interface
  • Set-point control and programmer function
  • Heated sample loop
  • Desiccant cell
  • Fill syringe
  • Embedded HW4-P software
  • Chamber door
  • 5 B8 probe sleeves
  • Control / reference probe

The Rotronic HygroGen2 humidity and temperature generator calibrates up to five relative humidity probes simultaneously and typically requires less than 5 minutes to equilibrate from one humidity condition to another when temperature is kept constant. The Rotronic HygroGen2 utilizes a mixed flow method to precisely generate a known humidity and temperature condition within a well insulated chamber. A desiccant cartridge provides low humidity and a saturator provides high humidity. These are mixed together by a control system to create stable humidity within the range of 5 to 95% RH. Temperature is controlled with a thermoelectric heat pump and can be set within the range of 0 to 60°C.

Rotronic HygroGen2 humidity and temperature generators are self-contained units that require no external resources except main power. It can also be used together with an external chilled mirror reference instrument. The Rotronic HG2 features a user-friendly touch screen graphical interface as well as a programmable ramp and soak function with multiple steps and profiles. The HG2 humidity generator is pre-loaded with the Rotronic HW4-P data acquisition software which is used for calibrating and adjusting the humidity temperature probes and instruments.

The embedded PC of the Rotronic HygroGen2 generator allows for configuration, control and automated functions. Fully functional Rotronic HW4-P software with data acquisition, calibration and adjustment functions for HygroClip probes is also included. An integrated nine-port USB hub is designed for connecting Rotronic USB probe adapters and peripherals, such as a mouse and keyboard. An RJ-45 Ethernet port makes PC communication quick and easy. The Rotronic HG2 also features an intuitive, easy-to-use touch screen graphical user interface.


Rotronic HygroGen2 Transit Bag
Lightweight, soft bag with zippered compartments for organizing and transporting HG2-S and accessories
Rotronic HygroGen2 Transit Case
Heavy-duty, hard plastic case with handle and wheels for easy transport and foam insert for protecting the HG2-S


Please consider these optional accessories.

Rotronic HygroGen2 Reference Probe
Calibrated at temperatures 41, 73.4, and 122°F (5, 23, and 50°C) and humidity 10, 35, 65, and 95% RH
Rotronic HygroGen2 Generator Door
Insulated door with secure locking mechanism to seal the temperature and humidity chamber of the HG2-S
Rotronic HygroGen2 15mm Plug
Plug for HG2 chamber doors with 15mm ports
Rotronic HygroGen2 30mm Plug
Plug for HG2 chamber doors with 30mm ports
Rotronic HygroGen2 Generator Probe Sleeves
Allows smaller probes to fit into a larger diameter hole in the chamber door while maintaining a sealed calibration environment
Rotronic HygroGen2 Desiccant Cell
Reusable device, pre-filled with molecular sieve, for reducing moisture in the HG2 chamber
Rotronic HygroGen2 Fill Tube & Syringe
Used to refill the water source for the HG2
Rotronic HygroClip2 Calibration Cable
Allows connection of a HygoClip 2 probe to the integrated USB ports on the HygroGen2