pH Meters

pH meters indicate the acidity or alkalinity in liquids by measuring the concentration of hydrogen ions through voltage differentials between electrodes. These pH levels are measured on a logarithmic scale ranging from 0 to 14, where neutrality is marked at 7. By assessing the concentration of hydrogen ions (H+) in solutions, these instruments employ a specialized glass electrode in tandem with a reference electrode to establish a stable baseline. Once these electrodes are submerged in the liquid being tested, they generate a potential differential due to hydrogen ion concentration. This reading is displayed as the pH level that shown on the pH meter. These instruments are used in a variety of applications including laboratories, biomedical research, environmental monitoring, food & beverage, water treatment and more. Ohaus pH Meters featured below provide accurate measurements of pH, ORP, conductivity, dissolved oxygen, and more. These pH meters are available in benchtop or portable sizes and can be used in a variety of high-level experiments and research applications. Select from a category below to learn more or contact us today to speak with a local LabRepCo area rep.