Wei Huaqiang HQ990 flow bar (differential pressure) into the flow meter is a reliable technique used produced a high-precision measuring instruments. Ba Wei flow probe flow sensor design, processing and application of concentrated reflection of the plug-in differential pressure flow meter technology to the latest research results; in the measurement accuracy, repeatability and reliability, structural strength (pressure, temperature, corrosion ), the type and diameter in size to adapt to aspects of the media, have been raised to a new height; HQ990 is an alternative to closure plate, turbo air flow meter and a variety of outstanding products ideal for measuring devices