... service advanced testing equipment quick delivery tern Air flow meter (Good quality,low price) Specifications:A,SBL digital flow meter,intelligent ... reliable.5,Wide measure range, bigger than 1:30.6,Good repeatability, generally 0.10.08% , fast to measure.7,Small ... -10V;RS232/RS485;Hart protocol,GPS.Our digital flow meter are all LCD display,it also can show accumulated flow and ...