Exchange of faulty pH probe for Zodiac pH Expert device: Guide and tips

Client:
Hello, I wanted to calibrate my pH probe for my pH expert device and the pH 7 is no problem at 75%, but the pH 4 is always in error even with a new product. I think the probe has reached the end of its life. Does the one on your website for 78 euros really correspond well with the Zodiac pH expert device? Thank you in advance

Client:
PH-1-3-0070 is the reference

Technical Advisor:
Hello, yes it is a probe problem. Send me a photo of your probe and I will check

Client:

Technical Advisor:
Yes, it's good

Client:
So can I order without any problem?

Technical Advisor:
Yes

Client:
And is the connection plug also the same?

Technical Advisor:
Yes, it is a BNC connector

Client:
Ok great, thank you for your quick response. Have a good day

Technical Advisor:
You're welcome, feel free to contact us again! Have a nice day