izzypop
New member
I just got an email from AQT directly and they said it is the software in the pH interface. They have fixed it. They sent me a new interface and it solved the problem. You will know because you can't calibrate the proble. You get a message "unable to calibrate" everytime you try.
As far as being off I have heard you need to recalibrate the probe after a weeks use to make it right. Also use a good cal. fluid like pinpoint or AQT.
As far as being off I have heard you need to recalibrate the probe after a weeks use to make it right. Also use a good cal. fluid like pinpoint or AQT.