Hanna Instruments Electrode Cleaning 🔬 Solution: Optimal Lab & Scientific Product Review

Electrode looks clean enough haha. It came in a professional unopened bottle and looks as expected. But you kind of have to believe it works because you can't see what it's doing to the electrode :)

This liquid rebuilt my $200 PH sensor when the manual said it was removed. I'm not saying he would do it for you as he shouldn't have done what he did for me but it worked and what more could I ask for?

Did an excellent job of restoring the accuracy of my electrode. The device will now calibrate itself exactly as it should. If you have a decent gauge, you really need these things. I tried doing without it and it didn't work. would recommend. b.