Latest News from Pi

Keep up to date with the latest news from Process Instruments – your specialist supplier of analysers and controllers for the water and related industries.

Pi welcomes three new members to its expanding sales team

March 21st, 2018|0 Comments

Pi's new sales team additions: Karen Thirlwell, Wesley Ashworth and Oliver Riding After a year of growth and success, [...]

Pi forms strong relationship with Future Water Ltd.

March 6th, 2018|0 Comments

Future Water branded CRIUS controller Process Instruments has recently formed a close working relationship with Future Water Ltd, a [...]

Chlorine Autoflush at a Brazilian Mill still going strong after eight years!

January 23rd, 2018|0 Comments

Chlorine measurement in white water, a second more recent installation in the same mill. A Total Chlorine Autoflush made [...]

Contact us on...

Tel: +44 (0)7565 150961

Email: [email protected]

"Ring me with questions
about a quote or
an application."

Harry Threlfall

West England, Wales

Tel: +44 (0)7908 735042

Email: [email protected]

"Get in touch, I'd be
happy to help."

Oliver Riding

East England

Tel: +44 (0)7779 993848

Email: [email protected]

"Give me a ring, I'd love
to hear from you."

Bill Sykes

Scotland, Northern Ireland, Isle of Man

Pi Featured Products

Our most popular analysers and controllers for water and related industries

Turbidity Meter


The TurbSense® range of turbidity analysers determine true online turbidity and/or suspended solids in water, using a nephelometric measurement of scattered light in accordance with ISO 7027.

Suspended Solids Monitor

New SoliSense® 2017

Whatever level of suspended solids from 2 NTU all the way up to >8% solids, the New SoliSense® is the solution and is unique in its ability to measure from low NTU to percent solids in one sensor.

Chlorine Analyser


The HaloSense range is suitable for total or free residual chlorine monitoring or control applications in potable water, seawater, process water, swimming pool water, waste water, food washing, paper and pulp, etc.

Dissolved Oxygen Analyzer


The OxySense range of online DO meters utilise the very latest and best optical DO sensor available in the world today.

Pool Controller


The AquaSense Pool Controller and Spa Controller measure the pool chlorine level, pH of the pool and control the levels by controlling chemical dosing.