Replacement of the Injecta PH Probe: Advice and Price Proposals

Client :
Hello, I have a pH probe injecta type NK-PH 1.5 with the code NKPH1H1HU1000 that I want to replace. What do you suggest and at what price?

Sorry, I am not on the site.
Pump and probe set purchased on Elywan.
Yes, and the electrolyzer as well. OK, it looks like it.
OK, thank you and have a nice day.

Technical Advisor :
Send me a photo of your current probe, no need to disassemble it, I will check.
It's this one
Elywan?
Sometimes, they use another probe.
It's this one
The probe looks like the one on the right in the image. So it's this one.
Gray, with a blue part on the top.
You're welcome, feel free to contact us again! Have a nice day.