... SS shell 1. Introduction Digital / intelligent vortex flow meter with pulse air/ gas /liquid measuring instrument / tool is an internationally ... remote transmission of flow signal, able to make network with computer to implement central administration;d) Unique design ... .6V Lithium batterySignal Output:Standard current, 4~20mA;Voltage pulse, low level1V, high level6V, load resistor150Display:Two-line ...