... high reliability and durability Sulfuric acid flow meter (98%) with 4~20mA output formCharacteristics:1. l Measurement flow of liquid, gas, steam ... .B,Flange ,clamp,thread inserted connection etc.C,4~20mA,pulse,0~10V,RS485,HART etc.SBL target flowmeter with digital display is ... 2 years),external power supply of 24VDCOutput forms:4-20mA;pulse,0-10V;RS232/RS485;Hart protocol,GPS.Our digital flow meter are ...