HH-GWJ series vortex flowmeter is a new type of flowmeter with international advanced level, which combines advanced technology at home and abroad, adopts advanced microprocessor, micropower technology and vortex principle. It has the advantages of powerful function, high measurement accuracy, wide range, low requirements for pipeline installation, small pressure loss, strong anti-vibration performance, stable and reliable performance, simple operation, etc. It is mainly used in industrial pipeline natural gas, gas, nitrogen, compressed air and other gas working condition volume and standard condition volume flow measurement.