... service advanced testing equipment quick delivery tern Air flow meter (Good quality,low price) Specifications:A,SBL digital flow meter,intelligent flow ... reliable.5,Wide measure range, bigger than 1:30.6,Good repeatability, generally 0.10.08% , fast to measure.7,Small ... pressure loss, only about 1/2P of Standard Hole Board.8,Able to adopt hang weight method to test the ...