Non-contact flowmeters are suitable for measuring flow rates in difficult-to-reach and difficult-to-observe fluids and in large pipelines. Ultrasonic flowmeters measure fluid flow without installing a measuring element in the fluid. Therefore, they do not alter the fluid's flow state or create additional resistance. Installation and maintenance of the meter do not affect the operation of the instrumentation production line, making them ideal energy-efficient flowmeters.

Ultrasonic flowmeters are non-contact instruments suitable for measuring the flow rate of difficult-to-reach and difficult-to-observe fluids and the runoff flow in large pipelines. They do not alter the fluid's flow state or cause pressure loss, making them easy to install.

They can measure the flow rate of highly corrosive and non-conductive media.

Ultrasonic flowmeters have a wide measurement range, with pipe diameters ranging from 15 mm to 6 meters.

Ultrasonic flowmeters can measure the flow rate of various liquids and wastewater.

The volumetric flow rate measured by ultrasonic flowmeters is unaffected by thermophysical parameters such as temperature, pressure, viscosity, and density of the fluid. Ultrasonic flowmeters are available in both fixed and portable configurations.

Currently, industrial flow measurement generally faces challenges with larger pipe diameters and difficulty measuring flow. This is because conventional flowmeters, as the diameter of the measuring pipe increases, introduce manufacturing and transportation difficulties, increased costs, increased energy consumption, and increased losses. Ultrasonic flowmeters, however, avoid these drawbacks.

Because ultrasonic flowmeters can be installed outside the pipe for non-contact flow measurement, their cost is largely independent of the pipe diameter. Unlike other types of flowmeters, which experience significant cost increases with increasing pipe diameter, larger-diameter ultrasonic flowmeters offer superior cost-performance compared to other types of flowmeters with equivalent functionality.

Furthermore, ultrasonic flowmeters offer flow measurement accuracy that is virtually unaffected by parameters such as the measured fluid's temperature, pressure, viscosity, and density. They can also be manufactured as non-contact, portable instruments, addressing the challenges of measuring highly corrosive, non-conductive, radioactive, and flammable and explosive media, which are difficult for other types of instruments to measure. Furthermore, due to their non-contact nature, a single instrument can accommodate various pipe diameters and flow ranges. This adaptability is unmatched by other instruments.