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pH-EC-TDS pH Meter
pH-EC-TDS pH Meter SKU: PHM-PH/EC/TDS Price: $219.99
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HI 98130 is a waterproof pH/Conductivity/Total Dissolved Solids/temperature meter. The housing has been completely sealed against humidity and designed to float. All pH, conductivity and total dissolved solids readings are automatically temperature compensated (ATC), and temperature values can be displayed in C or F units. For conductivity/Total Dissolved Solids readings, the EC/TDS conversion factor (CONV) is selectable by the user, as well as the temperature compensation coefficient b (BETA).

The HI98130 tester has automatic calibration and can recognize both standard and N.I.S.T pH and conductivity calibration buffers. The HI98130 pH, Conductivity, Total Dissolved Solids, and temp tester offers all of the advantages and applications as the HI98129, but can measure up to a higher conductivity range.


Range pH 0.00 to 14.00 pH
Range EC 0.00 to 20.00 mS/cm
Range TDS 0.00 to 10.00 ppt
Range Temperature 0.0 to 60.0C / 32 to 140.0F
Resolution pH 0.01 pH
Resolution EC 0.01 mS/cm
Resolution TDS 0.01 ppt
Resolution Temperature 0.1C / 0.1F
Accuracy pH 0.05 pH
Accuracy EC/TDS 2% F.S.
Accuracy Temperature 0.5C / 1F
Temperature Compensation pH: automatic; EC/TDS: automatic with adjustable from 0.0 to 2.4% / C
Calibration pH automatic, 1 or 2 points with 2 sets of memorized buffers (pH 4.01 / 7.01 / 10.01 or 4.01 / 6.86 / 9.18)
Calibration EC/TDS automatic, 1 point
TDS Conversion Factor adjustable from 0.45 to 1.00 pH
Electrode HI 73127 (replaceable; included)
Environment 0 to 50C (32 to 122F); RH max 100%
Battery Type / Life 4 x 1.5V / approx. 100 hours of continuous use; auto-off after 8 minutes of non-use
Dimensions 163 x 40 x 26 mm (6.4 x 1.6 x 1.0")
Weight 100 g (3.5 oz.)
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