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HI98311 (EC/TDS/C°-Tester)

EC/TDS/C°-Tester, (0-3999 µS/cm - 0-2000 mg/l (ppm)) waterproof


  • Ranges up to 3999 uS / cm (EC)

  • Dual display of conductivity and temperature

  • Easily replaceable graphite EC-probe tech-

  • Automatic calibration and temperature compensation 

  • Stability indicator for safe values

  • HOLD function to freeze a reading in the display

  • Battery charge indicator and automatic shut-off


Product Description



Conductivity Range 0 to 3999 µS/cm
Conductivity Resolution 1 µS/cm
Conductivity Accuracy ±2% F.S.
TDS Range 0 to 2000 mg/L (ppm)
TDS Resolution 1 mg/L (ppm)
TDS Accuracy ±2% F.S.
EC/TDS Calibration automatic, one-point at: 1413 µS/cm, 1382 mg/L (ppm)
TDS Conversion Factor adjustible, 0.45 to 1.00
Temperature Range 0.0 to 60.0°C
Temperature Resolution 0.1°C 
Temperature Accuracy ±0.5°C 
Temperature Compensation automatic, with β adjustable from 0.0 to 2.4% / °C
Battery Type/Life 1.5V (4) / approx. 100 hours of continuous use, auto-off after 8 minutes of non-use
Dimensions 163 x 40 x 26 mm 
Weight 100 g 



HI98331 Soil Test ™  simultaneously measures conductivity and temperature. It is easy to use, fast and accurate, and is therefore ideally suited for routine measurements directly in the ground . 122mm long with replaceable puncture EC probe.


Order Information

HI98311 (DiST®5) and HI98312 (DiST®6) are supplied with HI73311 EC/TDS probe, HI73128 probe removal tool, batteries and instructions.