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- Glass combination Potassium ion selective electrode for use in water, clinical analysis samples, saliva, serum, wines, fertilizers, soils, and other aqueous solutions
- Refillable, double-junction, polymer membrane reference; Potassium: 39,000 to 0.04 ppm, 1.0 to 1 x 10-6M
- 3 ft connecting cable with BNC connector