... service advanced testing equipment quick delivery tern Air flow meter (Good quality,low price) Specifications:A,SBL digital flow meter,intelligent flow ... less than 0.2%.3,High sensitivity, able to measure very low velocity below 0.8m/s.4,No movable part ... reliable.5,Wide measure range, bigger than 1:30.6,Good repeatability, generally 0.10.08% , fast to measure.7,Small ...