... meter with good quality and tech competitive price,superior service advanced testing equipment quick delivery ... tern Air flow meter (Good quality,low price)Specifications:A,SBL digital flow meter,intelligent flow ... ,clamp,thread inserted connection etc.C,4~20mA,pulse,0~10V,RS485,HART etc.D,D,anti- ... external power supply of 24VDCOutput forms:4-20mA;pulse,0-10V;RS232/RS485;Hart protocol,GPS.Our ...