I am using a Samsung android. BTW I have tried using a dot for the pH value, I.e. using a dot instead of a comma but although the dot key is there on the pop up keyboard nothing happens when I tap it. ???
I have a problem with entering pH values on the calculator. I can enter whole numbers such as 7 or 8 but cannot enter 7 comma 4 for example because the comma symbol on the keyboard that pops up has the comma symbol grayed out. This seems odd.