Easy way to test pressure changes: have a small room with a well-fitting door. Ventilate it well, then put the sensor in there. Open and close the door fast (ma

Easy way to test pressure changes: have a small room with a well-fitting door. Ventilate it well, then put the sensor in there. Open and close the door fast (mainly to/from the almost-fully-closed position) to get pressure changes. The pressure will only change briefly, but if it didn't keep up with the airplane, it definitely won't keep up with this. Depending on how frequent the readings are, at some point while opening/closing you'll get readings during a change and an outlier if it's sensitive to this. (You can also fashion something with e.g. cling wrap and stuff, but this seems simpler and you don't use throwaway plastic or anything.) I've used a barometer on a plane before. When they turn on the pressurization system, it's very clearly noticeable, but not a huge change. (A train in a tunnel is worse.) I'd expect this would be a similar effect.