Hanna Instruments DiST®5 EC/TDS(PPM)/Temperature Tester

  • Model: HI 98311


Hanna Instruments is a leading player in the field of analytical instrumentation and testers. 
Manufactured to the highest quality standards, with 2 year warranty. 
The pocket testers are easy to clean and easy to use.

  • Waterproof and it floats!
  • High accuracy
  • Automatic calibration and temperature compensation
  • HOLD function
  • BEPS (Battery Error Prevention System)

When the original DiST® (Dissolved Solids Tester) was first introduced, conductivity and total dissolved solids measurements became easy and affordable. The DiST's ease of use, in combination with its affordability made it the standard in EC and TDS (PPM) measurement. HANNA continues the standard in EC and TDS (PPM) testing with the DiST®5. 

This tester includes features such as: a replaceable graphite electrode, adjustable TDS (PPM) ratio, °C or °F measurement, Automatic Temperature Compensation (ATC) with adjustable ?, battery level indicator, stability indicator, automatic shut-off and automatic calibration. 

The graphite conductivity electrode provides greater accuracy because it resists contamination by salt deposits in the sample. All of these features are packed in a floating, waterproof casing. This 3-in-1 tester is unmatched in EC/TDS(PPM)/ temperature measurements. 

Order Information:
HI 98311 (DiST 5) is supplied with HI 73311 EC/TDS(PPM) probe, HI 73128 probe removal tool, batteries and instructions. 


RangeEC0 to 3999 µS/cm
TDS (PPM)0 to 2000 ppm
Temperature0.0 to 60.0°C / 32 to 140.0°F
ResolutionEC1 µS/cm
TDS (PPM)1 ppm
Temperature0.1°C / 0.1°F
AccuracyEC±2% F.S.
TDS (PPM)±2% F.S.
Temperature±0.5°C / ±1°F
Calibrationautomatic, one point at 1413 µS/cm or 1382 mg/L (ppm)
TDS (PPM) Conversion Factoradjustable from 0.45 to 1.00
Temperature Compensationautomatic, with ß adjustable from 0.0 to 2.4% / °C
Environment0 to 50°C (32 to 122°F); RH max 100%
Battery Type / Life1.5V (4) / approximately 100 hours of continuous use,
auto-off after 8 minutes of non-use
ProbeHI 73311 replaceable EC/TDS graphite electrode (included)
Dimensions163 x 40 x 26 mm (6.4 x 1.6 x 1.0")
Weight100 g (3.5 oz.)