Originally Posted by
Frank Giger
The thing about Chinese flight instruments is that an hour after flying one wants to go right back up in the air.
Seriously, it should have a paper in the box showing calibration information from the factory.
From there you'll need to re-check it on the aircraft itself. The most accurate airspeed indicator in the world is only as good as the pitot tube/static port installation.
Btw, why did you just randomly pick out an instrument on the AS website without doing the research beforehand?