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Why Parameter?


Parameter Generation and Control is a world-renowned manufacturer of precise temperature and humidity control equipment. Our method of humidity control is a simple yet effective solution for precisely controlling temperature and humidity at your specified condition.

We know that you have many choices for your humidity control needs, but we are confident that by choosing Parameter, you are choosing reliability and longevity. Let us tell you more about what we do.

Our Humidity Testing Chambers & Services

  • ConditionersSelf-contained conditioning systems for precise temperature and humidity control. Units are available in both vertical and horizontal configurations and allow for control within a tolerance of ±0.5% RH /±0.2°C.
  • Humidity Control RoomsWalk-in humidity control rooms. Parameter supplies a conditioning unit and assembly of a walk-in room using modular, insulated panels. Popular for pharmaceutical stability studies, TAPPI labs, product testing, and many more applications. 
  • Humidity Reach In ChambersParameter partners with Binder GmbH to provide our customers with high-quality reach-in chambers. Please contact us for a full selection of our partner offerings.
  • Supplementary ServicesParameter aims to offer our customers a turn-key solution to their needs. We offer a wide range of related services for our customers such as sensor calibration, monitoring, and validation. Our service department is also available day or night to provide technical support.

The Parameter Generation & Control Advantage


Excellent Quality and Customer Service

Parameter is committed to a high level of excellence in all aspects of our work. Our conditioning units are expertly designed and manufactured using durable, high quality stainless steel. Our walk-in rooms are constructed of modular, insulated panels to ensure maximum uniformity and efficiency. Parameter is cGMP compliant and ISO 9001:2015 certified.

Our standard of excellence also extends to our customer service. We pride ourselves on providing timely, transparent communication through every stage of your project. And after your project is completed, we continue our support through our experienced service and maintenance department and an annual free service seminar.


At Parameter, we understand the importance of reliability to our customers. That is why we assemble and exhaustively test each piece of equipment at your specified condition before it leaves our facility. With tight tolerances and unsurpassed uniformity, we enable industry professionals to reliably conduct product testing while eliminating the fear of going out of condition.

Competitively Priced

One of the big questions you may have is “What will all this cost?”. Parameter equipment is competitively priced and can even save you money in space and energy savings. Low energy costs and low cost to own makes Parameter equipment a truly worthwhile investment for your buck.

Customization Capability

With standard options available for quick delivery, we also have the capability of providing user specific solutions. Our team of expert engineers will provide their insight to determine the best solution for your temperature and humidity control needs. Conditioners are available in both horizontal and vertical configurations to best suit the needs of your space, and walk-in rooms are fully customizable with options for shelving layouts, lighting, finishes, and more. 


From adopting the two-temperature method as our standard control process to developing a single conditioner that can control two rooms at different conditions, Parameter is built on innovation. We aim to innovate with our customers in mind, such as creating a conditioner that attaches directly to the wall of a room to save floor space and allow for exterior service accessibility. 


Areas We Serve

Parameter Generation and Control is a small town company with global reach. Based in Black Mountain, North Carolina, Parameter serves customers from regions both near and far. Whether you’re as close as Raleigh and Charlotte or as far as China, Parameter is there to provide precise humidity control for your industry needs. 

Think that offsite storage might be a better solution for your needs? Parameter partners with Precision Stability Storage to provide our customers with flexible offsite stability storage and biostorage options.


Join the growing list of Parameter clients.

Please provide us with some basic information about your needs, and we’ll contact you to begin the quoting process.

If you’d rather start the conversation over the phone or by email, contact Stefan at 828-669-8717 or stefan@humiditycontrol.com.

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