Testimonials
"Once the students progress to the electronic primary flow calibrators and experience the DryCal® and/or DC-Lite,
their eyes light up, they breathe easier, and they typically exclaim,' Why didn't you give this to us to begin with? It is so much easier, so much better!'"
Neil J. Zimmerman, PhD, PE, CIH
Associate Professor of Industrial Hygiene, Purdue University
Associate Professor of Industrial Hygiene, Purdue University
"I would rate Bios International as A+
for both service and products."
for both service and products."
Dave Upton
Metrology Engineer,
Midwest Research Institute
Metrology Engineer,
Midwest Research Institute
"The Definer 220s are well liked in our division"
Senior Staff Member
State Division of Air Resources,
Quality Assurance Section
State Division of Air Resources,
Quality Assurance Section
"I must say that I really like the Definer 110. It works better than the other one out there.
One really good feature is the wind cover, which works really well. I've always had to take off my
hat and use it as a wind screen before I got the Definer 110, but not any longer. It's a good unit."
Senior Staff Member
State Department of the Environment,
Quality Assurance Division
State Department of the Environment,
Quality Assurance Division
"I think Bios is the greatest thing since sliced bread."
D. Gary Brown, Dr. PH, CIH
Associate Professor of
Environmental Health Science
Eastern Kentucky University,
Richmond, Kentucky
Associate Professor of
Environmental Health Science
Eastern Kentucky University,
Richmond, Kentucky
Submit your story and be part of the website. Tell us how you use your DryCal® and the value it brings to your job.
