Redox probe for Zodiac: functional testing and calibration fluid.

Client:
Hello, I bought a Redox probe for Zodiac from you about 2 years ago. I did the test (first in water, then in saltwater) and there was no change to be seen.

Technical Advisor:
Hello

Client:
Then I tried with buffer solution and there was a change to be seen. Is the probe still okay?

Technical Advisor:
Does the value remain the same in water and saltwater?

Client:
Yes

Technical Advisor:
Unfortunately, that's not good. And what value do you read in the water?

Client:
430

Technical Advisor:
And in the solution?

Client:
700

Technical Advisor:
It's strange that the salt doesn't make it react! But the probe is still sensitive, so it should be fine.

Client:
Okay, I also bought calibration fluid from you. How long can I use it for?

Technical Advisor:
If you rinse the probes well, they will last for 4 years without any worries.

Client:
Thank you, have a nice day!

Technical Advisor:
You're welcome.