Inaccurate Reading

[fred73]

Hi All

Are my probes the issue or something with reef pi itself?

I did all the calibration and still, the number seems very inaccurate for me 

During calibration, I get a current reading of 8.3 but then back to the graph its show current ph is 2.0 xxx 

Any idea 

[Rob F]

That sounds like a calibration issue. When you view the calibration screen you get the raw value from circuit, no calibration is reflected. After you close the window the value is updated based on it that's why you see 2. To clear the calibration delete the probe from pH tab and add it back, before doing so remove any graphs on home page and add back after.