... 3.Output:4-20mA current 4.Interface:RS-232 output water flow meter RV-100H handheld ultrasonic flowmeter for various industrial field ... , PVC, FRP and other uniform dense quality pipeLiquid typeswater, sea water, sewage, alcohol, various oils such as uniform, single, stable ... manufacturer and compatible with that of the FUJI ultrasonic flow meter. User protocols can be made on enquiry.Straight pipe ...