... flowmeter to measure saturated steam, superheated steam, industrial water digital indicators air vortex flow meter Detailed Product Description vortex flowmeter ... °CShell materialZl104Input signalThe electric load change of piezoelectric componentsOutput signalCurrent impulse: “1” and “0” stand for 20mA and 4mA ... @gmail [dot]com AND sikeqd@126 [dot] com digital indicators air vortex flow meter