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    อุปกรณ์วัด pH (pH/Conductivity/TDS Tester low range EC measurement)

    HI 98129

    pH/Conductivity/TDS Tester low range EC measurement

    HI 98129 is a waterproof tester that offers high accuracy pH, EC/TDS and temperature measurements in a single tester! No more switching between meters for your routine measurements. This floating, waterproof combination tester has an easy to read, LCD and an automatic shut-off. pH and EC/TDS readings are automatically temperature compensated.

    This tester features a replaceable pH electrode cartridge with an extendable cloth junction as well as an EC/TDS graphite electrode. The extendable cloth junction provides an extended electrode life and the replaceable pH cartridge means that this tester does not need to be thrown away when the pH sensor is exhausted.

    The EC/TDS conversion factor is user selectable as well as the temperature compensation coefficient (β).

    Fast, efficient, accurate and portable, the Combo pH, EC/TDS and temperature tester combines all the features users have requested and more!


    Range  pH  0.00 to 14.00 pH
    EC  0 to 3999 µS/cm
    TDS  0 to 2000 ppm
    Temperature  0.0 to 60.0°C / 32 to 140.0°F
    Resolution  pH  0.01 pH
    EC  1 µS/cm
    TDS  1 ppm
    Temperature  0.1°C / 0.1°F
    Accuracy  pH  ±0.05 pH
    EC/TDS  ±2% F.S.
    Temperature  ±0.5°C / ±1°F
    Temperature Compensation
    pH: automatic; EC/TDS: automatic with ß 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)
    EC/TDS  automatic, one point at 1413 µS/cm or1382 mg/L (ppm)
    TDS Conversion Factor  0.45 to 1.00
    pH Electrode  HI 73127 (replaceable; included)
    Environment  0 to 50°C (32 to 122°F); RH max 100%
    Battery Type / Life  1.5V (4) / approximately 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.)


    HI 73127  Spare Electrode for Testers
    HI 70004P  4.01 pH Buffer Solution, (25) 20 mL
    HI 70006P  6.86 pH Buffer Solution
    (25) 20 mL Sachets
    HI 70007P  7.01 pH Buffer Solution
    (25) 20 mL sachets
    HI 70009P  9.18 pH Buffer Solution
    25 x 20 mL sachets
    HI 70010P  10.01 pH Buffer Solution
    (25) 20 mL sachets
    HI 70031P  1413 µS/cm EC Solution, (25) 20 mL Sachets
    HI 70032P  1382 mg/L (ppm) TDS Solution, (25) 20 mL Sachets
    HI 70038P  6.44 g/L (ppt) TDS Solution, (25) 20 mL Sachets
    HI 70442P  1500 mg/L (ppm) TDS Solution, (25) 20 mL Sachets
    HI 70300M  Electrode Storage Solution
    1 x 230 mL bottle
    HI 7061M  General Purpose Cleaning Solution
    1 x 230 mL bottle
    HI 70030P  12880 µS/cm EC Solution (25) 20 mL Sachets
    HI 73128  Tool for Replacing Probe

  • Requesting a Quotation and Ordering Products

    131 Thailand Science Park. Innovation Cluster 1 Building,

    Klong 1, Klong Luang, Pathumthani 12120 Thailand. 

    Tel.  02-191-3928 Fax 02-191-3929

    For more information please contact 081-847-6768 (Ms. Nareerat) IDLine: @alltestkit

    E-mail :


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