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HM Digital Hydromaster Portable
Retail: $274.95
Price: $221.27
Availability: In Stock
Item #: 716137 -

    The HM-200 is a portable handheld meter that monitors pH, Electrical Conductivity (EC), Total Dissolved Solids (TDS) and temperature. Features include 2 different conductivity conversion factors to convert EC to TDS using the 0.5 (NaCl) or 0.7 (442TM), as well as selectable modes for measurements in the uS, mS and ppm scales. This instrument can be calibrated with various buffer solutions, and is equipped with automatic buffer recognition for user convenience. The meter is capable of data...

    HM Digital pH / TDS / EC / Temp meter
    Retail: $159.95
    Price: $127.93
    Availability: In Stock
    Item #: 716141 -

      The COM-300 is an advanced waterproof combo meter with superior accuracy. The meter measures four parameters: pH, Electrical Conductivity (EC), Total Dissolved Solids (TDS) and temperature. Features include 2 different conductivity conversion factors to convert EC to TDS using the 0.5 (NaCl) or 0.7 (442TM), as well as selectable modes for measurements in the uS, mS and ppm scales. The meter incorporates automatic temperature compensation (ATC) to accommodate for discrepancies in temperature...

      HM Digital Water Resistant Ec/TDS Meter w/  Temperature in C/F Hydrotester (Model COM-80)
      Retail: $42.95
      Price: $28.67
      Availability: In Stock
      Item #: 716145 -

        The COM-80 is an economically priced, reliable EC/TDS meter that is ideal for testing applications such as hydroponics & gardening, pools & spas, aquariums & reef tanks, water ionizers, drinking water and more. Measures electrical conductivity (EC), total dissolved solids (TDS). Excellent for nutrient testing. Four scales: EC: uS, mS; TDS: ppm, ppt. This tester has Automatic Temperature Compensation (ATC) and is water resistant. Measurement Range: 0-9990 TDS; 0-5000 ppm; 0-9.9 mS; 0-5.0 ppt....

        HM Digital pH 80 Meter
        Retail: $46.50
        Price: $37.20
        Availability: In Stock
        Item #: 716155 -

          Resolution: pH 0.1 pH, 0.00 - 14.0 pH. Accurate to 0.1 pH. Hold button and auto shut-off. Automatic Calibration: Auto-ranging to 4, 7 or 10 pH. Very reliable and long lasting. Low battery indicator. Clear cap to notice moisture (or lack of) on probe. Glass encased reference electrode - helps retain moisture. Batteries included.

          HM Waterproof EC/TDS/Temp Combo Meter
          Retail: $76.95
          Price: $61.27
          Availability: In Stock
          Item #: 716160 -

            Measures electrical conductivity (EC), total dissolved solids (TDS) and temperature. Three different calibration options (KCl, 442TM, NaCl), each with its own non-linear conversion factor. Automatic Temperature Compensation (ATC) using three temperature coefficients. Waterproof housing with digital calibration (push button). Measurement Range: 0-9990 TDS; 0-8560 ppm. Auto-off, data-hold functions and low-battery indicator. Display: large and easy-to-read LCD screen includes simultaneous...

            HM Digital Waterproof pH Meter
            Retail: $99.95
            Price: $79.93
            Availability: In Stock
            Item #: 716165 -

              Measures pH and Temperature. Auto-ranging three point calibration with digital fine tuning. pH buffer 4 solution is in a sponge embedded in a clear cap. Measurement Range: 0-14 pH with a waterproof housing. Digital automatic calibration (one point), with digital fine tuning. Auto-off, data-hold functions and low-battery indicator. Display: large and easy-to-read LCD screen includes simultaneous temperature reading. Factory calibrated with three-point calibration to 4, 7, and 10 pH. The meter...

              HM Digital Replacement Probe for pH
              Retail: $45.95
              Price: $36.20
              Availability: In Stock
              Item #: 716180 -

                Measures pH and Temperature. Auto-ranging three point calibration with digital fine tuning. pH buffer 4 solution is in a sponge embedded in a clear cap. Measurement Range: 0-14 pH with a waterproof housing. Digital automatic calibration (one point), with digital fine tuning. Auto-off, data-hold functions and low-battery indicator. Display: large and easy-to-read LCD screen includes simultaneous temperature reading. Factory calibrated with three-point calibration to 4, 7, and 10 pH. The meter...