some bad info here, so far ... if you have a Milwaukee pen, KEEP IT WET ! ... that's what the cap is for ... if it dries out, it will be permanently ruined ... I use the same base water for storage, as I use to prepare for my plant ... periodically, check it for accuracy against the buffer solution ... my Milwaukee pen always stayed spot-on, I occasionally checked it against litmus paper, to make sure ... when all else fails, read the instructions :wtf: , or check with the manufacturer ... :smokin:
the image reaper Reviewed by the image reaper on . Ph meter Does the tip need to sit in the buffer solution or distilled water? Rating: 5