Is “EHZ” what the Raspberry Shake 1D outputs?
Yes. Each of the sensors has a different name.
For example, a 3D has three sensors:
EHZ - Vertical sensor
EHN - North-South horizontal sensor
EHE - East-West horizontal sensor
The data labeled “EHZ” is your vertical movement data.
That is correct. The 1D outputs data for the vertical channel (EHZ).
All our instruments follow the standard naming convention, that you can find here: IRIS: SEED Channel Naming