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    อุปกรณ์วัด Conductivity/TDS (Portable EC/TDS/Temperature Meter High Range Measurement)

    HI 99301

    Portable EC/TDS/Temperature Meter
    High Range Measurement

    • Amperometric probe technology
    • Automatic Temperature Compensation
    • Automatic single calibration with calibration indicator
    • On-screen tutorial messages for calibration and set-up
    • HOLD
    • BEPS (Battery Error Prevention System) alerts the user in the event that low battery power could adversely affect readings
    • Battery % displayed on startup.
    • Compact, heavy-duty and waterproof


    HI 99301 is a portable, EC/TDS/temperature meter that measures high range conductivity in mS/cm and TDS in ppt. Both instruments are housed in a case rated for IP67 conditions.

    This instrument offers single point, automatic calibration with automatically temperature compensated measurements. The compensation coefficient and EC/TDS conversion factor are user-selectable from 0.45 to 1.00 and temperature coefficient is selectable from 0.0 to 2.4%/ºC.

    This meter easily fits in the palm of your hand and the bottom probe connection ensures the electrode cable doesn’t get in your way. The large, multi-level LCD displays the primary reading, temperature and calibration guides simultaneously. Symbols and messages on the LCD indicate meter status and guides users through operations.

    At start-up, the meter shows the remaining battery percentage and when a low battery condition is detected, a battery symbol appears on the LCD to advise the user that only a few hours of working time is left.

    The HI 76306 EC/TDS/temperature probe resists clogging and is easy to clean.


    Order Information:
    HI 99301 is supplied with HI 76306 EC/TDS probe, batteries, instructions and rugged carrying case.

    • Specifications
    Range EC 0.00 to 20.00 mS/cm
      TDS 0.00 to 10.00 ppt (g/L)
      Temperature 0.0 to 60.0°C/32.0 to 140.0°F
    Resolution EC 0.01 mS/cm
      TDS 0.01 ppt (g/L)
      Temperature 0.1°C/0.1°F
    Accuracy @ 20°C EC/TDS ±2% F.S.
      Temperature ±0.5°C/±1°F
    Calibration   automatic, one point at 12.88 mS/cm, 6.44 ppt (CONV 0.5) or 9.02 ppt (CONV 0.7)
    EC/TDS automatic, 0 to 60ºC (32 to 140ºF) with ß adjustable from 0.0 to 2.4%/ºC with 0.1% step
    EC/TDS Factor   adjustable from 0.45 to 1.00 with 0.01 step (default 0.50)
    Probe   HI 76306 EC/TDS probe with internal temperature sensor, DIN connector and 1 m (3.3’) cable (included)
    Battery Type / Life   1.5V AAA (3) / approximately 500 hours of continuous use; auto-off after eight minutes of non-use
    Environment   0 to 50°C (32 to 122°F); RH max. 100%
    Dimensions   152 x 58 x 30 mm (6.0 x 2.3 x 1.2”)
    Weight   205g (7.2 oz.)
  • 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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