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- Glass combination Water Hardness (Ca+2, Mg+2) ion selective electrode for use in power plants, clinical analysis, foods, drinking water, and boiler feed water
- Refillable, double-junction, solid-state reference; Water Hardness: 40,000 to 0.4 ppm, 1.0 to 1 x 10-5M
- 3 ft connecting cable with BNC connector