pH Pen Probe

[BenB]

I have this pH tester. You're supposed to keep the probe wet in a specific preservative solution between uses. I have the correct solution. The problem is that it dries out so quickly. I go months between using it, and it dries out. Does anyone have an idea on how to keep it wet? I'm going to put a small piece of sponge in the bottom of the cap and see if that helps.

 

[JayP]

Does it not have an o-ring that seals it in the cap? That's what the Apera pens have, and the probe going dry isn't an issue.

 

[BenB]

Does it not have an o-ring that seals it in the cap? That's what the Apera pens have, and the probe going dry isn't an issue.

No. Unfortunately not

 

[Scaper26]

No. Unfortunately not

I wouldn’t use foam or filter floss or any foreign object as you risk scratching the probe. Your best bet is to refill the KCl solution monthly.