... measure range:0.1-5kg 2,accuracy:1%-0.5psi 3,work temperature:-20-70 4,voltage:220v/50hz air inflator1, Features1 ... and make sure the air accuracy + air speed, should promised the air supplier stable, it means that air compressor should be not supply ... accessories free, but not including expres cost5,air inflator machine control plate6,air inflator machine work princeple 7,alibaba advertise Pricevalid ...