While what daddy nobucks said is the correct info that you should follow, I usually just shake mine off good and shelve them, and do not put the caps back on. I think maybe the fact that they get used at least twice every day they stay clean. Plus I clean them off in florakleen solution if they get gunky (I am also refrerring to my tds meter).
AllforMe Reviewed by AllforMe on . Ph meter Does the tip need to sit in the buffer solution or distilled water? Rating: 5