... With the function of measuring two way flow,can show the positive and reverse flow,also have two way current and ... ~5000HzPulse outputSeparated type output by two way: forward and reverse flow; integrated type output one wayFrenquency range:0~5KHz,uper ... -path alarm outputAlarmable(programable)high/low flow,blank pipe,fault condition,forward and reverse flow,simulation volume exceeds range,pulse volume ...