How to choose the right pH probe for the VA SALT salinator by Vagnerpool

Customer:
Hello, I am looking for a pH probe replacement for the VA SALT salinator from Vagnerpool: https://www.vagnerpool.com/web/cs/product/sonda-ph-sph
I apologize, for the automatic dosing station: https://www.vagnerpool.com/web/cs/product/va-salt-smart-c10-do-25-m3-ph-sonda?sec=2
According to the Vagner pool website, it is https://www.vagnerpool.com/web/cs/product/sonda-ph-sph ketra with the code S9900105105
phcenter.eu/gb/seko/1543-n%C3%A1hradn%C3%AD-ph-sonda-pro-reference-seko-sph-1-dj-6m.html
I have already ordered this probe from you twice and I am wondering if I am ordering it incorrectly and if I should have this probe instead? phcenter.eu/gb/seko/1544-n%C3%A1hradn%C3%AD-ph-sonda-pro-seko-reference-9900105105.html
Thank you in advance for your help
Can I possibly ask for advice at email@email.com?

Technical Advisor:
Response from the technical advisor to the customer's inquiries...