Your search for "thermal mass flowmeter" revealed the following:

Fluke 709H precision mA HART loop calibrator for 4–20 mA testing and process transmitter calibration
Fluke 9100S Handheld Dry-Well temperature calibrator for portable temperature calibration
Fluke 772 milliamp process clamp loop meter for 4–20 mA process signal measurement
Fluke 772 4–20 mA clamp loop meter for in-circuit measurement, sourcing and simulation
Fluke 80PK-18 Pipe Clamp Temperature Probe Kit with Type K thermocouple clamps
Rosemount 214C Temperature Sensor for industrial process temperature measurement
Rosemount 214C RTD Temperature Sensor with Pt-100 element for accurate temperature measurement
Rosemount 214A Temperature Sensor for customized industrial temperature measurement
Rosemount 0085 Pipe Clamp Temperature Sensor for industrial temperature measurement
Rosemount 0085 RTD Temperature Sensor with platinum sensing element
Rosemount 68Q Sanitary Temperature Sensor
Rosemount 68Q Tri Clamp sanitary temperature sens
Fluke 714B Thermocouple Calibrator for thermocouple measurement and simulation
Fluke 714B Thermocouple Calibrator for thermocouple temperature calibration
Fluke 714B Thermocouple Calibrator
$1,200.00
No reviews
Fluke 424D Laser Distance Meter for 100 m distance measurement
Fluke 424D laser distance meter for construction and industrial measurement
Fluke 771 milliamp process clamp meter for 4–20 mA signal measurement
Fluke 771 4–20 mA clamp meter for non-invasive process loop troubleshooting
Rosemount 614 Cryogenic Spot Temperature Sensor
Rosemount 614 temperature sensor for LNG storage tanks
Fluke 719Pro Electric Pressure Calibrator with integrated electric pump
Fluke 719Pro pressure calibrator for pressure transmitter calibration and testing
Fluke 376 FC True-RMS AC/DC Clamp Meter with iFlex flexible current probe
Fluke 376 FC iFlex flexible current probe for large conductor current measurement
Fluke 705 Loop Calibrator for 4–20 mA process loop measurement, sourcing and simulation
Fluke 705 Loop Calibrator
$1,115.00
No reviews
Fluke 930 Non-Contact Tachometer for optical RPM measurement
Rosemount 565 Multiple Spot Temperature Sensor for tank temperature measurement
Fluke 709 precision mA loop calibrator for 4–20 mA measurement, sourcing, simulation and loop-powered testing
Fluke 709 mA loop calibrator for 4–20 mA source, simulation and loop testing