The differences in Rx probes: A guide to selection and calibration

Hello, here is Thorsten and I am looking for an Rx probe. How do I find the differences? How do I recognize a good probe from a less good one?

Hello

Can you tell me the brand and model of your controller?

I have an Oxilife2

Ok, one moment

https://ph-redox-pool.com/gb/sugar-valley/2078-orp-probe--for-oxilife.html

Ok, but what is the difference between the probes in general and why do I need a different probe for each device (controller)?

There can be electrical, chemical, or mechanical differences

What is meant by reference solution?

I'm reading the technical specifications

I think it is the calibration solution, in your case, you need this

https://ph-redox-pool.com/gb/pool-buffer-calibration-solution/621-475mv-buffer-calibration-solution.html

But the description says 468mV. This solution has 475mV

Does that make a difference?

One moment

https://ph-redox-pool.com/gb/pool-buffer-calibration-solution/2851-468mv-buffer-calibration-solution.html

So, we have to pay attention to the value

Otherwise, immerse it in a neutral buffer solution or

Yes, but the difference in value is very small and therefore not significant

Great, then thank you so far

Neutral is for pH. https://ph-redox-pool.com/gb/pool-buffer-calibration-solution/617-ph7-buffer-calibration-solution.html

Have a nice afternoon

You're welcome