Your search for "differential pressure flowmeter" revealed the following:

Fluke 707 Current Loop Calibrator for 4–20 mA measurement, sourcing and simulation
Fluke 707 4–20 mA loop calibrator for transmitter calibration and process loop testing
Fluke 707 Current Loop Calibrator
$1,180.00
No reviews
Endress+Hauser CPL51E digital pH sensor
Endress+Hauser CPL51E Memosens digital pH sensor
Fluke TP165X Remote Control Probe
Endress+Hauser CUS52D digital turbidity sensor
Fluke 1736 and 1738 Three-Phase Power Quality Loggers
Fluke 1736 three-phase power and energy logging
Endress+Hauser CLS21E digital conductivity sensor
Endress+Hauser CLS21E conductivity measurement sensor
Endress+Hauser Condumax CLS19 conductivity sensor
Endress+Hauser CLS19 conductivity sensor front view
Endress+Hauser COS61D optical oxygen sensor
Endress+Hauser COS61D Memosens digital oxygen sensor
Endress+Hauser Memosens CCS58E ozone sensor
Endress+Hauser CCS58E Memosens digital ozone sensor
Fluke 9100S Handheld Dry-Well temperature calibrator for portable temperature calibration
Rosemount 0085 Pipe Clamp Temperature Sensor for industrial temperature measurement
Rosemount 0085 RTD Temperature Sensor with platinum sensing element
Endress+Hauser Condumax CLS16B conductivity sensor
Endress+Hauser CLS16B conductivity sensor front view
Rosemount 614 Cryogenic Spot Temperature Sensor
Rosemount 614 temperature sensor for LNG storage tanks
Rosemount 68Q Sanitary Temperature Sensor
Rosemount 68Q Tri Clamp sanitary temperature sens
Endress+Hauser CPA875 sterile retractable assembly
Endress+Hauser CPA875 hygienic process assembly