Greyline Instruments PDFM 4.0 Portable Doppler Flow Meter Trash Pumps Three-button operation (no menus) and

Three-button operation (no menus) and an on-board operating manual

No manometer fluid to evaporate

Redi-Flo3 pump design uses "floating"

viscous liquids and abrasives

Although this test is quite accurate for dry soils

Greyline Instruments PDFM 4.0 Portable Doppler Flow Meter Trash Pumps Three-button operation (no menus) andIt's ideal for flow troubleshooting, balancing and checking performance of permanent flow meters. The new PDFM 4. 0 is fast and easy to operate you can mount the sensor on the outside a pipe in less than a minute. Use the built in keypad and calibration menu to set up the flowmeter for your application. The PDFM 4. 0 works on any liquid containing bubbles or solids and is recommended for "difficult liquids" like wastewater, slurries, sludge,