Unfortunate the pressure Sensor create some hard Down Spikes.

Look at this Screen shot from the Physics Toolbox App. (You get with other Apps Too, but it is not easy to Document the Transient down Spikes)

To See only down spikes i must interpret as Implosions around me ... that is nonsense.
This Artificiality Effect is present after Driving 24 km
This Effect is present after Tuning Off Internet
This Effect is present using WLAN Internet
This Effect is present using G2/G3/G4 Internet via SIM Provider...
I assuming there is some electrical interference to something, but i have no idea that kind of action i have to program to avoid this artificial data Acquisition. Hopefully it can fixed by Software by adding the inverted interference influence to get clean data of fast atmospheric events like squalls.