... quality Ultransonic heat meter1,Adopting forging process for pipeline2,Forged brass or iron for material3,Ultransonic channel have no reflection surface ... chip,more accuracy.8,Convenience installation,horizonal or vertical installation,for optionIII Performance featuresFlow range1.5~3.5m3/h Minimum ... requirement of JJG 225-2001.Setup MBUS, connect to GPRS Factory price of Ultrasonic heat meter