Superior Hydraulic Design, Without Installation Requirements Of Straight Pipe Wide Turndown Ratio, R is Up To 1000Suitable For Big Volume Flow And Tiny flow Measurement. Suitable For Mass Flow And Tiny Flow Measurement The Design Of Integrated Flow, Pressure, Wireless Reading Meets Monitoring Pipeline Requirement IP68 Protection Class, Whole Meter Sealed Completely Ensures Long Term Underwater Working Double D Size Batteries Can Continuously Work For 15 Years Bi-directional Measuring Forward And Reverse Flow Data Logger Function Can Save 10 Yearsâ??Data Including Day, Month And Year LCD Display Volume, Flow Rate, Flow Direction, Alarm, Leak Detection At The Same Time Standard RS485 (Modbus-RTU), A Variety Of Options, NB-IOT, OCT, GPRS etc. Electric Components According To ROHS, OSP Processed Circuit Board Stainless Steel Body (SS304) is Integrated Stretching Patent Right Product International Standard Flange Connection, Simple Installation According To Sanitary Standard For Drinking Water