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The HI98331 Soil Test is a pocket tester specifically designed to directly measure soil conductivity (EC) and temperature.
HI7031L Conductivity Calibration Solution 1413uS/cm
HI7030L Conductivity Calibration Solution 12880uS/cm
HI98303 DiST®3 Waterproof EC Tester (0-2000 µS/cm)
HI98304 DiST®4 Waterproof EC Tester (0.00-20.00 mS/cm)
HI7033L Conductivity Calibration Solution 84uS/cm