Founder and owner Mark L. Kuss is a specialist in the design and manufacturer of equipment and hardware items for laboratory systems and has experience with developing a number of marketed items.

Challenge Environmental Systems, Inc. was formed in 1990 to manufacture and sell respirometers – instruments that help identify the ability to treat industrial wastewaters. Over the intervening 15 years, Challenge has become a world leader in the design and application of respirometer for a wide range of applications

Challenge Respirometers
Designed for
  • Biodegradation Studies
  • Toxicity Assessments
  • Industrial Waste Testing
  • Biomass Activity Tests
  • Kinetic Measurements
  • Performance Evaluations
  • Compost and Soil Reactions
  • Research Applications In Aerobic and Anaerobic Processes

Challenge Respirometers are used Worldwide:
  • USA (50%)
  • Korea (15%)
  • Taiwan (15%)
  • Canada (10%)
  • *UK, Uruguay, Ireland, Hong Kong, France, India, Japan, New Zealand (10%)