Review on 🔬 Enhance Accuracy with Atlas Scientific Electrode Calibration Solution by Gary Duncan

The calibration fluids were fine but the pH storage solution had built up on the inside of the bottle which looked like black mold so I stopped using it. In fact, I only use 7.0 calibration fluid as the other two are of little use. I bought a large bottle of Oakton pH storage solution and have been drinking it for quite some time and there has been no mold growth. Can't say I would buy this kit again, although I would buy the 7.0 calibration fluid again if Oakton didn't make one.