keiserrott
Well-Known Member
THIS!EVERY PH SENSOR NEEDS PH STORAGE SOLUTION!!!
If you are buying an expensive pen and not buying the cheap storage solution, then you are throwing money away. I use a cheap pen, but I also use storage solution. My cheap pens last a long time, and I can buy a few of them to check against each other is there's any question.
If you are real cheap, you can just make your own storage solution: https://www.rollitup.org/t/make-your-own-ph-probe-storage-solution.999889/
All ph meters will dry out if not stored correctly folks. 2 drops in the cap after use each day and your meter will last.