Connect an installed redox probe to home assistant

Hello,
I’m seeking some help to connect redox and ph probes to home assistant.

I’ve already connected the pump of my pool to home assistant and it is working great. But I would like to go a step further.

I have two box next to my swimming pool to adjust automatically the Ph and Redox. And I would like to get the values into home assistant, how can I do it?
This is a photo of one of the box that I want to connect. The probe come from the right, black wire and yellow plug.

I don’t know where to start … If somebody have a clue !

Thanks