These combination electrodes have a clog-resistant and open double junction reference system. They are ideal for measurements in samples containing proteins or TRIS buffers and that do not contain mercury. Suitable for viscous liquid samples.

• Require minimal maintenance because there is no fill solution; they have a polymer gel reference
• Either store in a beaker of storage solution or reassemble in the provided electrode storage bottle

Storage conditions:
- Always store in Orion pH plectrode storage solution, Cat. No. 910001
- Either store in a beaker of storage solution or reassemble in the provided electrode storage bottle