When your pH meter is not in use it is important to use Storage Solution for pH Meters to help protect the electrode. A cared for pH meter will provide years of trouble free use.
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It prevents the electrode from drying out and becoming inaccurate. You need this if you own a pH meter,_x000D_
My electrode is fine after 2 years of using this. Since the cap holds just a small amount this bottle will will last for years.
I used to store my pH meter in water but after a couple of years it wasn't very accurate. I replaced the meter and now I soak the electrode in this solution, which lasts since it doesn't evaporate in the cup.
I found out the hard way that you cab't store your electrode in water because it will gradually lose accuracy. Now I use this and since the cup is sealed it doesn't evaporate and this will last a long time.
You need to keep your electrode stored in this stuff to keep it from drying out and failing. Since I brew every few weeks I use my pH meter and constantly check that there is enough fluid.