Anyleaf orp probe

Hi, I just started experimenting with the raspberry and found this project. Its amazing :slight_smile:
So I decided to give it a try and managed to get a temp sensor working. After that i bought the ORP Probe from anyleaf and its module.
I thought it can be used to measure the PH ? Is this right ?

The next thing im a bit confused about is how to calibrate the Probe.

Is this the right solution :

or something like this :

Ive read all the datasheets from anyleaf and the instructions and googled some information on probes and calibration. But the more i read the more i get confused xD

Thanks for your help

ORP and pH are different measurements, so you would need a different probes/boards to measure each.