How to find the right pH probe for the Pooleasy automatic dosing system

Hello, I have an automatic PH dispenser from Pooleasy and I am looking for a new PH probe. Last year at the end of the season, I bought one but it couldn't be calibrated... they told me it might be for a different type... they said I should get it directly from Pooleasy and it should be 8cm long. I see that you have it, can you advise me?

One moment please.

https://ph-redox-pool.com/gb/avady/3211-ph-probes-for-80-mm-avady--ayac08ac01.html

Great, if it's compatible with Pooleasy, I'll take it... can I place an order?

It is compatible! And it's in stock.