... 4~20mA,RS485 4.support remote control water flow meter (LCD display),water level meterSBL digital target flow meter is improved ... of them, such as turbine, electromagnetic, ultrasonic, mass, volumetric, vane-wheel, by-pass, orifice, differential pressure flow meter. It was widely ... requirements in state standard GB/T9115.1~9115.4-2000.b. All standard flanges from other countries (Japanese standard, USA ...