Our Products are smart, online and integrated.

We have been providers of online instrumentation for the water industry, oil and gas industry and industrial applications for over 52 years.

The online instrumentation experts

Online instrumentation from PMA Ltd utilises a wide range of measurement techniques for a huge range of different applications.


We are known throughout the UK for our proficiency in different measurement technologies such as colorimetry, spectroscopy, ion selective electrodes (ISE), titration, fluorescence, chromatography and more.


Primarily our customers are in the water industry, however, we also have vast experience in online instruments for the oil and gas industry and many industrial applications.

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Our water industry products

Discover the s::can sensor range

s::can are world leaders in online UV-Vis spectroscopy sensors, combining cutting edge technology with a product that is built to last the test of time.

Compass Coagulation Control systems

Automatic coagulation control system for water and wastewater treatment, optimise coagulant dosing whilst maximising organics removal to minimise DBP formation potential.

3S online colorimetric analysers

The 3S colorimeter is a flexible, compact online analyser which enables end users to minimise TotEx and ensure compliance and process control.

Lovibond turbidity analysers for drinking water applications

The PTV series of turbidity instruments are designed by an expert team for the benefit of end users. Maximum performance whilst ensuring ease of use for the operator.

Online chemical analysis of wastewater and industrial water

The Accuseries is a robust, flexible online analyser capable of multiple measurement methods to ensure performance even in the toughest of environments.

Aquamonitrix Nitrate & Nitrite online analyser

A revolutionary new nitrate and nitrite sensor for drinking water, from raw water through to network monitoring, and wastewater applications.

Portable MLSS and Sludge Blanket Level Meter

Measure sludge blanket level accurately and easily with Royce Aqua 22 portable MLSS meter.

Our mission

At PMA, we explore new ways of thinking and we aim for an enduring legacy, despite the short-term priorities of our world. Our people are talented in a wide range of disciplines, our principles and code of conduct help guide us in the work we do every day.

Energy Industry

With many years experience in the Oil & Gas sector, you can rely on PMA to help you meet your evolving demands. Whilst the complexity of facilities and procedures are ever increasing, and downtime must be reduced, your competitiveness is improved with reliable and accurate online instrumentation.  PMA has a wide range of specialised t instrumentation designed for the oil and gas industry so let us help you achieve your goals.

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Our energy industry products

Online oil in water instruments

Turner Designs Hydrocarbon Instruments UV flourescence oil in water monitors.

Ultrasonic Sensors for density and concentration measurement

Rhosonics Sensors for online density and acid/base concentration measurement

Automatic Tank Dewatering and Desalter Control

Agar Probes for interface detection in oil and gas applications

Belfield Decantation Valve

Decant and Recover a Variety of Liquids in Different Specific Gravities.

Innovative Electrically Traced Tubing

Dekoron Pre-Insulated and Heat Traced Tubing.