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  • 357A Replacement 1.5v Button Cell Battery 10-Pack

    (357A)

    …following models: HM Digital TDS-3 HM Digital TDS-4 HM Digital TDS-4TM HM Digital TM-1 HM Digital COM-100 HM Digital DM-1 The 357A (1.5v) Button Cell Battery Replacement is a battery replacement for your HM digital water monitor. This battery replacement will keep your HM TDS, TM, COM, and DM model

    Our Price: $ 4.00
    Retail:$5.72
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    $1.72 (30%)
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    Discontinued Product. Read Description for Options.
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  • HM Digital ORP-200 ORP Meter Water Tester w/ Temp.

    (ORP-200)

    …oz Accuracy: 0.5% (+/- 2mV) ORP Range: -999 to +1000 mV Temperature Range: 32 - 176 F Dimensions: 7.3" x 1.3" x 1.3" Replaceable Sensor: HM Digital Model SP-O2 Resolution: 1 mV; Temperature resolution is 0.1 F Calibration: Digital calibration by push button Housing: Waterproof Plastic (submersible;…

    Related Items: Hm Digital
    Our Price: $ 87.95
    Retail:$108.99
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    $21.04 (19%)
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  • HM Digital DM-2 In-Line Dual TDS Monitor

    (DM-2)

    …Digital DM-2 5-Pack In-Line Dual TDS Monitor is a water tester which is used to test the amount of total dissolved solids (TDS) in water. It is a new model of the HM DM-1 In-Line Dual TDS Monitor. The DM-2 is highly efficient and accurate due to its advanced microprocessor technology. The HM Digital…

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    Our Price: $ 227.50
    Retail:$289.95
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    $62.45 (22%)
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  • HM Digital AquaPro AP-1 Water Quality Tester - TDS 10-Pack

    (AP-1)

    …0.5) Temperature Range: 32 - 176 Degrees Fahrenheit Calibration: Digital calibration by push button Power Source: 1 x 3V button cell (included) - Model#: CR2032 The housing of this digital AquaPro water quality tester is water-resistant, and it has an auto shut-off function, data-hold function, and…

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    Our Price: $ 25.79
    Retail:$42.99
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    $17.20 (40%)
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    Discontinued Product. Read Description for Options.
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  • HM Digital AquaPro AP-2 Water Quality Tester - EC 12-Pack

    (AP-2)

    …uS Temperature Range: 32 - 176 Degrees Fahrenheit Calibration: Digital calibration by push button Power Source: 1 x 3V button cell (included) - Model#: CR2032 The housing of this digital AquaPro water quality tester is water-resistant, and it has an auto shut-off function, data-hold function, and…

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    Our Price: $ 25.79
    Retail:$42.99
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    $17.20 (40%)
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    Discontinued Product. Read Description for Options.
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