... Air flow meter (Good quality,low price)Specifications:A,SBL digital flow meter,intelligent flow meter,gas flow meter,liquid flow meter,steam flow ... and water conservancy etc.Functional characteristics:1, Measurement flow of liquid, gas, steam, ropy mediums or ambulatory ... QZRX001-2007SBLdigital flow meter can widely used a variety of size pipeline and a variety of measurement media Air flow meter ...