Your search for "Differential Pressure Flowmeter" revealed the following:

Fluke 9100S Handheld Dry-Well temperature calibrator for portable temperature calibration
Fluke Calibration 9100S Handheld Dry-Well
$2,670.00
No reviews
Endress+Hauser CUS52D digital turbidity sensor
Endress+Hauser CUS52D Digital Turbidity Sensor
$625.00
No reviews
Endress+Hauser COS61D optical oxygen sensor
Endress+Hauser COS61D Memosens digital oxygen sensor
Endress+Hauser COS61D Optical Oxygen Sensor
$560.00
No reviews
Endress+Hauser Deltabar PMD50 differential pressure transmitter for liquid and gas measurement
Endress+Hauser Deltabar PMD50 Differential Pressure Transmitter
$590.00
No reviews
ABB PDD300 differential pressure transmitter with diaphragm seals
ABB PDD300 transmitter with S26 diaphragm seal assembly
ABB PDD300 All-Rounder Differential Pressure Transmitter
$880.00
No reviews