... air flow meter -accumulate the mass, volume or length -batch control -CE,CQC,ISO9001 -.MOQ 1 PC AI-708H High performance flow ... totalizer, mass air flow meterdiesel flow meterMeasurement and controller for mass, volume, lengthMain ... E, J type thermocouple-retransmiss, high/low alarm of flow,temperature and pressure, signal detecting-8-digits accumulation value ...