Providing the most reliable, flexible, and arguably the best water quality analysers on the market.

As a leading global supplier of water analyser instrument solutions, Process Instruments (UK) Ltd (Pi) was founded in 1998. The evolution of Pi has witnessed the emergence of subsidiaries in both France and Ireland, along with a laboratory, offices and a new production facility in Burnley. Additionally, we now have a business representative base in China, providing Pi with a rising reputation for innovation across six continents and more than 50 nations. At Process Instruments UK, we have consistently focused on providing our customers with arguably the best water quality analysers on the market, which are both reliable and flexible.