Magnetic Flow Meters
QTRD91 non-contact radar level meter principle
Ultrasonic Level Meters
Thermal mass flow meter is a good choice to measure kinds of air and gas.
It has high accuracy and stability.
This type flow meter is widely used on different industries.
And my company have critical sonic nozzle calibration equipment in workshop.
This equipment is special for thermal mass flow meter calibration.
So the accuracy for thermal mass flow meter could be guaranteed.