Hanna HI98129 Low Range pH, EC and TDS Combo Tester

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Categories: Alkalinity & pH, Hanna Instruments, Water Testing and Purifiers

SKU: HI-98129

Brand	Hanna Instruments
Model	HI-98129
Measurements	pH, EC, calculated TDS and temperature
pH range	0.00–14.00
Conductivity range	0–3,999 µS/cm
TDS range	0–2,000 ppm
Temperature range	0.0–60.0°C
pH accuracy	±0.05 pH
EC/TDS accuracy	±2% of full scale
TDS factor	Adjustable, 0.45–1.00
Included pH electrode	HI73127, replaceable
pH calibration	Automatic one or two points
Manufacturer weight	100 g

The HI98129 combines pH, conductivity, calculated total dissolved solids and temperature in a water-resistant pocket instrument. It suits routine freshwater and source-water checks where the low conductivity range covers the water being measured.

Supplier dispatch: Supplied directly by Hanna Instruments. Supplier stock was shown as available at our latest check.

£281.57 (inc VAT)

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Recommended Extras

Optional separately charged items. Select only the refills, references or spares you need; included items and method restrictions are identified with each option.

Additional item: Hanna HI70004P pH 4.01 Buffer Sachets (+£48.06)

Additional item: Hanna HI70007P pH 7.01 Buffer Sachets (+£48.06)

Additional item: Hanna HI70010P pH 10.01 Buffer Sachets, 25 Pack (+£57.05)

Additional item: Hanna HI70031P 1413µS EC Calibration Sachets (+£57.05)

Additional optional matched reference: Hanna HI70032P 1382ppm TDS Calibration Sachets — Optional separately listed 1382 ppm TDS reference at CONV=0.5. It is not the TDS conversion of the 1413 µS/cm EC calibration point: that would be 706.5 ppm at factor 0.5. The exact HI98129 manual calibrates conductivity with 1413 µS/cm and states that separate TDS calibration is unnecessary; do not present this accessory reference as a required second calibration. (+£57.05)

Additional service spare: Hanna HI73127 Replacement pH Electrode Cartridge (+£105.21)

Additional item: Hanna HI77400P pH 4.01 and 7.01 Buffer Sachets (+£22.65)

Hanna HI98129 Low Range pH, EC and TDS Combo Tester

Four useful water measurements in one pocket tester

The HI98129 combines pH, conductivity, calculated total dissolved solids and temperature in a water-resistant pocket instrument. It suits routine freshwater and source-water checks where the low conductivity range covers the water being measured.

Choosing the right measurement

TDS is calculated from conductivity using the selected conversion factor; it is not a direct laboratory measurement of every dissolved substance. This low range model is not a marine salinity tester. For pH-only or EC/TDS-only work, a dedicated tester may be a simpler choice.

Technical overview

Specification	Details
Measurements	pH, EC, calculated TDS and temperature
pH range	0.00–14.00
Conductivity range	0–3,999 µS/cm
TDS range	0–2,000 ppm
Temperature range	0.0–60.0°C
pH accuracy	±0.05 pH
EC/TDS accuracy	±2% of full scale
TDS factor	Adjustable, 0.45–1.00
Included pH electrode	HI73127, replaceable
pH calibration	Automatic one or two points
Manufacturer weight	100 g

What is included

HI98129 Combo tester
HI73127 pH electrode
HI73128 electrode removal tool
Batteries and instructions

Reagents and optional accessories

pH buffers, conductivity standards, electrode cleaner and storage solution are separate consumables unless expressly supplied in a selected bundle. HI1271 is not the same replacement electrode as HI73127.

Care and reliable results

Calibrate pH and conductivity with the appropriate standards and follow the care instructions for the replaceable HI73127 pH electrode. Use electrode storage solution rather than storing the glass pH sensor dry or in pure water. Its IP65 water-resistant casing is not a permission for continuous submersion.

Compare related options

Further Hanna supplies and comparisons

Matching methods and supplies

Match the exact instrument and method. These are separate products; check the supplied contents before adding another item.

Hanna HI70004P pH 4.01 Buffer Sachets — Choose the buffer points required by the instrument calibration procedure; an optional buffer is not a promise that it is included.
Hanna HI70007P pH 7.01 Buffer Sachets — Choose the buffer points required by the instrument calibration procedure; an optional buffer is not a promise that it is included.
Hanna HI70010P pH 10.01 Buffer Sachets, 25 Pack — Choose the buffer points required by the instrument calibration procedure; an optional buffer is not a promise that it is included.
Hanna HI70031P 1413µS EC Calibration Sachets — 1413 µS/cm conductivity standard; retain the method and temperature-compensation instructions. Do not substitute a different conductivity or TDS value.
Hanna HI70032P 1382ppm TDS Calibration Sachets — Optional separately listed 1382 ppm TDS reference at CONV=0.5. It is not the TDS conversion of the 1413 µS/cm EC calibration point: that would be 706.5 ppm at factor 0.5. The exact HI98129 manual calibrates conductivity with 1413 µS/cm and states that separate TDS calibration is unnecessary; do not present this accessory reference as a required second calibration.
Hanna HI73127 Replacement pH Electrode Cartridge — Exact replacement electrode reference; not HI1271 and not a generic probe fit.
Hanna HI77400P pH 4.01 and 7.01 Buffer Sachets — Choose the buffer points required by the instrument calibration procedure; an optional buffer is not a promise that it is included.