The Greyline DFM 5.0 doppler flowmeter measures
flow from outside a pipe ?-in. ID or larger. It is
designed for difficult liquids like wastewater, sludge,
slurries, abrasives or any liquid with bubbles or suspended
solids. It includes strap-on sensor, backlit display,
totalizer, isolated 4-20mA output and two control
relays. A built-in datalogger is optional.