Order assistance: Choosing the right probe for calibrating a MICRODOS device.

Client:
Hello, are you a robot or a human?

Technical Advisor:
Hello, I am a human.

Client:
Perfect, thank you. I need to order a calibration probe but I'm not sure which one.

Technical Advisor:
What regulator do you have?

Client:
I have a MICRODOS device. I can send you a photo.

Technical Advisor:
Yes.

Client:
Which one is the right one to calibrate this equipment? I saw 230MV in the manual.

Technical Advisor:
You are looking for the redox probe, right?

Client:
And on the other manual... PH 7 and PH9. Yes, exactly. I need to recalibrate all of that. Thank you for your expertise.

Technical Advisor:
For the redox probe (to connect to the device with RX) link.
link.
For the pH probe