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Strathkelvin Instruments Ltd is the world’s leading supplier of precision respirometry and dissolved oxygen instruments for wastewater management and research. We have a policy of continued innovation and new instrument development.

In 1998, the opportunity arose to exploit the technology of a respirometer designed for biomedical research, for use in activated sludge respirometry. Initially the respirometry product development was directed towards toxicity testing, since there was no method anywhere in the world that would measure and calculate toxicity of wastewater to the actual activated sludge of the receiving works, in as little as 5-10 mins. Subsequently it became clear that, since respirometry is one of the 3 major processes in biological treatment (biodegradation, growth and respiration), by adding additional software, the respirometer could be used as a major tool in process control in treatment works.

The company, based in Scotland, sells it’s instruments worldwide. It has a policy of continuous development and innovation, and of ensuring quality in all aspects of its products. It also prides itself on an excellent record in after-sales service and customer satisfaction. Support for all instruments is provided by highly qualified technical staff, who are also available for pre-purchase advice.

In 2014 we launched our ASP-Con - Activated Sludge Plant Controller - a Self- Cleaning, Self-Calibrating instrument, measuring 16 wastewater parameters, including DO, Ammonia, SVI etc. This instrument is in-situ and allows feed forward/feed back control. The instrument will reduce energy costs substantially, whilst maintaining or further improving compliance. It’s Like Having Your Best Operator 24/7! Strathkelvin Instruments are a leading global supplier of precision respirometry and dissolved oxygen instruments for the Biomedical Research, Wastewater Treatment, and Product Testing markets. Our own research and development of new products and services continuously produces world-class products.
In Wastewater Treatment we have developed Strathtox, a world leader in closed cell respirometry and have gone on to launch Bioscope, a first in portable in-plant bacterial analysis. In Biomedical research our precision respirometry system for mitochondria and isolated cell research provides automatic recording, analysis and reporting for State 3 and State 4 respiration rates, ADP/O ratios and RCR in as low as 50ul samples. Customer care is our core value and we have built our reputation on this. Strathkelvin pride ourselves on our customer care and support and we continue to oversee this directly and through our network of distributors.