Ultrasonic flowmeter is a kind of velocity meter based on ultrasonic time difference principle to measure flow. Widely used in urban water supply, water treatment, agricultural irrigation, food and beverage, industrial production and other industries flow measurement.

Electromagnetic flowmeter is a kind of velocity meter based on Faraday's electromagnetic induction law to measure flow, specially for different media types, working conditions, to develop a variety of electrodes and linings, more accurate selection recommendation, to ensure high-precision measurement on site.

Vortex flowmeter is a kind of velocity meter based on Karman vortex principle to measure flow. Widely used in a variety of gases (air, oxygen, nitrogen, gas, natural gas, chemical gas, etc.) flow measurement.

Turbine flowmeter is an instrument that calculates the flow rate through the magnetic flux generated by the impeller cutting the magnetic field. Widely used in petroleum, chemical, food and beverage and other industries flow measurement.