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  • HM Digital DM-2 In-Line Dual TDS Monitor

    (DM-2)

    The HM 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…

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    Our Price: $ 227.50
    Retail:$289.95
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    $62.45 (22%)
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  • HM Digital ORP-200 ORP Meter Water Tester w/ Temp.

    (ORP-200)

    The HM Digital ORP-200 ORP Meter Water Tester with Temperature Gauge is a water tester used to test the Oxidation Reduction Potential (ORP) in your water supply. It also tests the temperature of water, and features Automatic Temperature Compensation (ATC). Useful for both consumers and hobbyists,…

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    Our Price: $ 87.95
    Retail:$108.99
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    $21.04 (19%)
    In Stock
  • HM Digital TDS-EZ 0-9990 PPM Water Quality Tester

    (TDS-EZ)

    The HM Digital TDS EZ water quality tester is ideal for consumers who want to know what is in their drinking water. Get accurate readings fast due to the advanced factory calibrated microprocessor with hold function for convenient reading and recording from the LCD screen. Included is a convenient…

    Our Price: $ 19.95
    Retail:$24.99
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    $5.04 (20%)
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  • HM Digital SP-1 Sensor Probe For Panel Mounted Controllers 10-Pack

    (SP-1)

    The HM Digital SP-1 Sensor Probe For Panel Mounted Controllers is a durable, plastic probe that features stainless steel construction and is manfactured with high-quality construction. The HM Digital SP-1 also includes a 9.8-foot shielded cable. HM Digital SP-1 Specifications: Part Number: SP-1…

    Our Price: $ 52.99
    Retail:$63.99
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    $11.00 (17%)
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    Discontinued Product. Read Description for Options.
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  • HM Digital PH-200 Replacement pH Sensor SP-P2

    (SP-P2)

    The HM Digital PH-200 Replacement pH Sensor SP-P2 is a pH testing meter that is ideal for all pH testing applications. This HM Digital pH meter measures pH and temperature, featuring a simultaneous temperature display. This pH monitor has auto-ranging three point calibration with digital fine…

    Our Price: $ 50.99
    Retail:$58.99
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    $8.00 (14%)
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    Discontinued Product. Read Description for Options.
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  • HM TDS-3 Meter with Carrying Case 10-Pack

    (TDS-3)

    HM TDS-3 Meter is ideal for both residential and commercial applications including but not limited to water purification, waste-water regulation, aquaculture, hydroponics, and residential RO applications. Measurement range is 0-9990 ppm. TDS Meters Are Used To: Check the performance of your water…

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    Our Price: $ 22.20
    Retail:$36.99
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    $14.79 (40%)
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    Discontinued Product. Read Description for Options.
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  • HM TDS-4 Pocket Size TDS Meter, TDS4 10 Pack - 10-Pack

    (TDS4)

    The HM TDS-4 Meter will monitor the TDS (Total dissolved solids) levels for drinking water, water filters, hydroponics, Aquariums, Food and Coffee, Pools and Spas and residential RO applications. Measurement range is 0-9990 ppm. TDS Meters Are Used To: Check the performance of your water filter…

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    Our Price: $ 17.95
    Retail:$34.99
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    $17.04 (49%)
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    Discontinued Product. Read Description for Options.
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  • HM Digital SP-O2 ORP Sensor Replacement for ORP200

    (SP-O2)

    The HM Digital SP-O2 ORP Sensor Replacement is an Oxidation Reduction Potential (ORP) replacement sensor for the HM Digital ORP-200 ORP Meter Water Tester . (SP-O2 / SP-O2)

    Our Price: $ 55.99
    Retail:$64.99
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    $9.00 (14%)
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    Discontinued Product. Read Description for Options.
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  • HM Digital QC-1 TDS & Conductivity Monitor

    (QC-1)

    The HM Digital QC-1 can be used to test water for the following: TDS Conductivity levels The HM Digital QC-1 TDS & Conductivity Monitor is a monitor that checks your water for conductivity levels and TDS (total dissolved solids). This conductivity monitor features eight programmable set points done…

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    Our Price: $ 20.30
    Retail:$39.99
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    $19.69 (49%)
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    Discontinued Product. Read Description for Options.
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  • HM Digital pH Buffer Solution Variety Pack

    (pH Buffer)

    The pH Buffer Solution Variety Pack from HM Digital is lightweight, economically priced and has an indefinite shelf life. Easy to use. Preparation directions are included directly on the bottle. Includes 3 packets of 4.0 pH, 6 packets of 7.0 pH, and 3 packets of 10.01 pH pH Buffer Solution Variety…

    Our Price: $ 9.95
    Retail:$11.99
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    $2.04 (17%)
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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)

    The HM Digital AquaPro AP-2 Water Quality Tester is a hand-held digital water quality tester which is used to test the electrical conductivity (EC) of water. It also tests the temperature of water, and features Automatic Temperature Compensation (ATC). Useful for both consumers and hobbyists, it…

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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 TM-1 Digital Thermometer

    (TM-1)

    The HM Digital TM-1 can be used in the following appplications: Aquariums Kitchens and bakeries Hydroponics and aquaculture All hot and cold fluids and/or solids Freezers/coolers and heating systems Motors, generators, and ventilations systems Academic, scientific, and medical laboratories The HM…

    Our Price: $ 34.95
    Retail:$39.99
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    $5.04 (13%)
    In Stock
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