pH/Oxygen Reduction Potential (ORP) Electrode Storage Solution, 250 mL (8.4 fl oz) — Suitable for All pH Meters — 1M KCl Solution — Keeps Your Probe Conditioned and Helps to Extend its Life

Arrived and worked perfectly.

I put this in my ph pen and ec pen lids so that the tip is kept wet as most pH and ec meters this is a requirement for longevity of instrument.

My meter has been accurate longer since using this stuff. Don't have to calibrate it as often.

Does what it is supposed do!

This solution is not too expensive, but it keeps my probe in great condition. I don’t need to calibrate it as often either.I would definitely recommend this to anyone.

Excellent value for the cost.

Been soaking my PH electrode in this for about 6 months no problems at all. Meter works great and always stays in calibration. I would say this is a solid product.

I mean...why wouldn't you get this?Helps keep my ph meter calibrated when not in use and has extended the life/accuracy of my 2nd meter. My first one without any storage solution ended up needing to be replaced within 2 months.