ph regulator aqua isipool l3

Hello
I have to change on my aqua isipool l3 ph regulator my sensor on my system I have two sensors, one small and one large and I would like to know what type of sensor I need
thank you for your comeback

Hello, could you take a picture of them for me?

On the right is the probe you have only one probe. Measure your pH well

for the pH: https: // probe-ph-redox- piscine.fr/isipool/206-sonde- ph-pour-isipool-ph-l3.html

Yes, I pH you, it's this probe!

sorry, I see pH

OK, no problem
You would have the products for calibration and a cap for wintering
Thank you

Yes, are you just using pH 7?

No I also have the pink ph4 solution I think

In that case https: // probe-ph-redox- piscine.fr/solution- calibrating-buffer-swimming pool / 1647-calibration-and-wintering-kit-ph4-ph7.html

Thank you again, I am ordering you

Thank you ! good night