... &corrosion high reliability and durability high accuracy Nitrate flow meter (LCD display)Characteristics:1. l Measurement flow of liquid, gas, steam, ... can be changed by replacing target according to need. 10 ,LCD display.11,4-20mA, 0-10V, impulse, and RS485 outputs.12 ... RS485;Hart protocol,GPS.Our digital flow meter are all LCD display,it also can show accumulated flow and instant flow installation ...