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Testimonials

“We have found the performance of the system to be quite satisfying and user friendly. We are currently running low level O2 uptake experiments and are impressed with the sensitivity of the instrument.”

Wendy Segal
Research Technician
BetzDearborn Division of Hercules, Inc.
Trevoset, PA

“I have found the performance of the Challenge AER-200 to be unmatched. The precise measurement of oxygen consumption, homogenous mass transfer of test materials, and constant and consistent operating temperature have enabled me to obtain extremely accurate test results, particularly as compared to other respirometer systems. I find the Challenge system to be extremely user friendly.”

Randy Drake
Senior Biologist
River Bend Labs
St. Louis, MO

JTA-204 Portable Jar Tester

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Overview

Challenge Technology knew the chemcial and floc industry needed a good, reliable and portable jar tester, so we built the JTA-204. There are other "portable" jar tester's on the market, but there is nothing portable about them. This unit is great for sampling in the field or for on-site product demonstrations.


Product Specifications

  • 4-Position Base
  • Single control dial for stirring speeds (0-1200 RPM)
  • Low profile multi-position motor housing
  • 2, 9-watt flourescent bulbs for sample illumination
  • The light source is the same lenght as the sample for even illumination.
  • Uses 1,000 mL wide-mouth jars with screw-top lids for easy addition/removal of product and for sample transportion.
  • Everything packs neatly into the carrying case for portability.
  • The JTA-204 only weighs 25lbs, carrying case and all!