Online iron monitors use colorimetry to determine the iron concentration in water.

Iron analysers are typically found in both the drinking water production process and in wastewater applications where iron is dosed into the water as a coagulant. Ensuring iron has been removed from the final water leaving the plant (whether that be in the final drinking water or in the effluent discharge to the environment in wastewater) can be achieved.

There are a number of different colorimetric chemistries that can be used for online iron analysers, which is best depends upon the application. As a reagent manufacturer, PMA can offer ferrozine, phenanthroline or TPTZ based chemistry for our colorimeters.

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Products for this application


An industrial analyser for wastewater measurement of iron.

Online Colorimetric Analyser


A user friendly iron monitor for the drinking water industry.

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A bit about us

Established in 1971 PMA is a well-recognised provider of online instrumentation for process control and compliance monitoring. With expertise in analytical techniques such as Photometry, Colorimetry, Ion-selective electrodes (ISEs), Titration, Fluorescence, Ultrasonics and more.

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