These electrodes use a Hg/Cl reference to withstand solutions that react with the silver  typically used in pH reference electrodes. Ideal for solutions containing organics. Choose from pin or annular junction. Pin-type junction provides low electrolyte flow for long life. Annular-type junction provides faster electrode response.

• Calomel reference solution is ideal for biotechnology applications with organics, proteins, Tris buffers or metals
• pH range: 0 to 12 pH
• Maximum temperature: 70°C
• Diameter: 12mm