Rollitup

APERA INSTRUMENTS AI209 Value Series PH20 Waterproof pH Tester Kit, ±0.1 pH Accuracy https://a.co/d/2oQOypu

I use 7.0 calibration liquid to store

Thats what happened to me and realized the hassal, have to dip in calibration and clean it and again to store it. Not doing that is just poor practice. Switched to gh test drops, dont miss the meter. Cheaper, accurate and easier.

Problem is i am colorblind soo those drops dont work for me.
Good news ph meter was broken

aw damn that sucks, sorry. Im not and I struggle to determine the color sometimes its the only thing I dont like which is minor.