
 | Description Conductivity calibration, 1,000 umhos/cm, 8 pints
Features Calibrates YSI 30, YSI 85, YSI 556, EC300, 6-Series sondes, and more Includes (8) plastic pint bottles Designed and manufactured to the highest quality standards

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Details:
For freshwater, choose a 1,000 umhos/cm conductivity standard (3161 or 3167).
For brackish water, choose a 10,000 umhos/cm conductivity standard (3163 or 3168).
For sea water, choose a 50,000 or 100,000 umhos/cm conductivity standard (3165 or 3169).