Oakton 27504-26 Combination Ion-Selective Electrode (ISE), Potassium (K+)

• Ion-selective electrode: Potassium (K+)
• Type: PVC membrane
• Concentration range: 10–6 to 1.0 M (0.04 to 39,000 ppm)
• Temperature/pH range†: 0 to 50°C/ 2 to 12
• Interferences‡: Cs+, NH4 +, Tl+, H+, Ag+, Li+, Na+, Tris1+

Electrodes are double-junction combination ion-selective electrodes and are convenient to use in places where two electrodes won’t fit. Use with a meter that has a resolution of 0.1 mV for the most accurate results; a meter with direct readings in ppm is preferred.

Economy Epoxy Electrodes have a durable epoxy body and are well-suited for portable field applications. The outer reference chamber is silver-free and resists contamination. These electrodes are refillable.