The PDFM2 is a handheld non-invasive microprocessor based meter for measuring the flow rate and total volume of liquids flowingthrough process and effluent pipelines. It is suitable for a wide range of liquids, including aerated water, liquids containing suspended soilds, slurries and sludges. The FDFM2 requires with a minimum concentration of 100 ppm of solids bubbles having minimum size of 100 microns.

The flowmeter utilises a single campon sensor and the non-intrusive Doppler principle to measure the mean velocity and is particularly useful as a temporary flow indicator as a working tool to establish and verify flow conditions in field to plant installations.