Greyline Instruments PDFM 4.0 Portable Doppler Flow Meter Polyethylene Available optical sensors:

Available optical sensors:

One-handed operation

Conductivity measurements are read from 0 to 80

This model has

Greyline Instruments PDFM 4.0 Portable Doppler Flow Meter Polyethylene Available optical sensors:It'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,