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    Hanna Instruments Phosphate Low Range Checker HC Low Range Phosphate (Mfg# HI713)

    Hanna Instruments Phosphate Low Range Checker HC Low Range Phosphate (Mfg# HI713)

    Upgrade from chemical test kits to professional instrumentation without breaking your budget. Hanna Instruments Phosphate Low Range Checker HC is a budget-friendly single parameter electronic tester for measuring phosphate levels in freshwater or... more

    $49.00

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    Hanna Instruments Marine Alkalinity Checker HC Marine Alkalinity (Mfg# HI755)

    Hanna Instruments Marine Alkalinity Checker HC Marine Alkalinity (Mfg# HI755)

    Upgrade from chemical test kits to professional instrumentation without breaking your budget. Hanna Instruments Marine Alkalinity Checker HC is a budget-friendly single parameter electronic tester for measuring marine alkalinity level. Compact handheld... more

    $49.00

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    Milwaukee Instruments pH 600 Hand Held pH Pocket Tester

    Milwaukee Instruments pH 600 Hand Held pH Pocket Tester

    Easy-to-use full-range pocket pH tester at an exceptional value. Priced right for any budget, Milwaukee Instruments pH 600 Hand Held pH Pocket Tester offers hobbyists an affordable introduction to electronic testers as well as a great time-saving... more

    $22.99

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    Test Set, Tempo, PE930

    Test Set, Tempo, PE930

    Telephone Line Tester, Waterproof, Indicators Mute/Redial/Low Battery/Line Flash, Line Polarity Indicator, Last Number Redial, Speed Dial Memory 10 Number (32 Digits Each), Ringer, Data Safe Monitor, Dialing Method Pulse Or Tone, Impact Resistant Case,... more

    $206.45

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    (50,000+)
    Aquatronica Multi Tester Controller

    Aquatronica Multi Tester Controller

    Aquatronica Multi-Tester is an electronic device for measuring all the main values in an aquarium when used in conjunction with relative probes. (Temperature, pH, Redox, Marine density, Conductivity, Level, Flooding) The special "Easy Plug" (ACQ005)... more

    $136.99

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    pH Calibration Fluid - 10.0

    pH Calibration Fluid - 10.0

    pH calibration fluid to calibrate your electronic pH tester to read higher pH. Accurate to + or - .005. more

    $3.99

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    pH Buffer Solution - 10.01 - 7.4 oz.

    pH Buffer Solution - 10.01 - 7.4 oz.

    Adjust the range of your Milwaukee pH meter/tester using these specially designed calibration solutions. Choose 4.0 for Discus; Angel; and similar Amazonian style acidic tank conditions. Choose 7.0 for Community Freshwater; Livebearer; South American... more

    $13.09

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    pH Buffer Solution - 4.01 - 7.4 oz.

    pH Buffer Solution - 4.01 - 7.4 oz.

    Adjust the range of your Milwaukee pH meter/tester using these specially designed calibration solutions. Choose 4.0 for Discus; Angel; and similar Amazonian style acidic tank conditions. Choose 7.0 for Community Freshwater; Livebearer; South American... more

    $13.09

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    Hanna Instruments Marine Calcium Checker HC Marine Calcium (Mfg# HI758)

    Hanna Instruments Marine Calcium Checker HC Marine Calcium (Mfg# HI758)

    Upgrade from chemical test kits to professional instrumentation without breaking your budget. Hanna Instruments Marine Calcium Checker HC is a budget-friendly single parameter electronic tester for measuring marine calcium level. Compact handheld... more

    $49.00

    FREE shipping

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    pH Alert Internal pH Monitor

    pH Alert Internal pH Monitor

    Compact monitor for continuous pH readings in freshwater aquariums Easy-to-use, time-saving pH tester - no test chemicals to mix Great alternative to expensive aquarium monitors and testing equipment Long-lasting, continuous monitor measures aquarium... more

    $6.87

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    HM Digital pH HydroTester PH-80

    HM Digital pH HydroTester PH-80

    Economically priced electronic pH meter puts fast, precise pH measurement within your aquarium budget. HM Digital pH HydroTester PH-80 is a great choice for hobbyists looking for a sensibly priced electronic pH tester. Precision device boasts advanced... more

    $49.95

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    pH Buffer Solution - 7.01 - 7.4 oz.

    pH Buffer Solution - 7.01 - 7.4 oz.

    Adjust the range of your Milwaukee pH meter/tester using these specially designed calibration solutions. Choose 4.0 for Discus; Angel; and similar Amazonian style acidic tank conditions. Choose 7.0 for Community Freshwater; Livebearer; South American... more

    $13.09

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    Digital PH Meter Tester Water LCD Monitor Pen Aquarium

    Digital PH Meter Tester Water LCD Monitor Pen Aquarium

    Digital PH Meter Tester Water LCD Monitor Pen Aquarium more

    $6.35

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    "IDEAL Energy Tester"

    "IDEAL Energy Tester"

    " General Information Manufacturer Part Number 61-065Model 61-065Name Energy TesterType Energy Measuring Device Warranty Limited Warranty 2 Year " more

    $26.66

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    "Triplett 9200-A Energy Tester"

    "Triplett 9200-A Energy Tester"

    " General Information Manufacturer Part Number 9200Model 9200-AName 9200-A Energy TesterType Energy Measuring Device Controls/Indicators Status Indicators Overload Indication Low Battery Indication Miscellaneous Package Contents 9200-A Energy Tester 3V... more

    $33.48

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    Milwaukee 2210-20 Fluorescent Lighting Tester

    Milwaukee 2210-20 Fluorescent Lighting Tester

    Milwaukee 2210-20 Fluorescent Lighting Tester The Milwaukee 2210-20 Fluorescent Lighting Tester is a new to world tool that tests fluorescent lighting fixtures and cuts troubleshooting time in half. The Fluorescent Lighting Tester delivers complete... more

    $168.95

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    "4XEM 4XEM Cable Tester For UTP/STP RJ45,RJ11/RJ12 and BNC"

    "4XEM 4XEM Cable Tester For UTP/STP RJ45,RJ11/RJ12 and BNC"

    " General Information Manufacturer Part Number 4XRJ45TESTERName 4XEM Cable Tester For UTP/STP RJ45,RJ11/RJ12 and BNCType Cable Analyzer Media & Performance Media Type Supported CoaxialMedia Type Supported Twisted Pair " more

    $21.31

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    "HM Digital PH-80 pH Meter Tester"

    "HM Digital PH-80 pH Meter Tester"

    "HM Digital PH-80 pH Meter Tester is an economically priced, reliable pH meter tester that is ideal for testing applications such as hydroponics ; gardening, pools; spas, aquariums; reef tanks, water ionizers, drinking water and more. HM Digital PH-80... more

    $49.95

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    "Milwaukee Full Range pH Tester W/ 1 Point Manual Calibration"

    "Milwaukee Full Range pH Tester W/ 1 Point Manual Calibration"

    " Simple and fast! Tester includes calibration screwdriver and batteries. Free shipping on all US orders! Orders ship within 24 hours Monday through Friday. Returns accepted for 14 days after item is received. Free return shipping. Warranty and... more

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    $21.99

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    Rapitest pH Pond Tester

    Rapitest pH Pond Tester

    "Includes:Color comparator, 10 pH test capsules, and useful advice about fish keeping, improving water quality and ways to create a healthy environment for your fish and plants. The Rapitest pH Pond Tester is designed for simplicity of use with... more

    $5.06

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    Hanna Ph Meter, Phep4, Hi98127 (hi 98127)

    Hanna Ph Meter, Phep4, Hi98127 (hi 98127)

    Hanna pH Meter, pHep4, HI98127 (HI 98127) This portable tester measures pH in a range of -2.0 to 16.0 with a resolution of 0.1 pH and Temperature (°C/°F). Note: It is normal for salt deposits to form on the outside of electrode cap or on cap/rim. This... more

    $86.00

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    Alkalife pH Test Kit - 1 kit

    Alkalife pH Test Kit - 1 kit

    The AquaION pH test kit is the perfect way to test your water for alkalinity. This kit comes with everything you need to see your water's alkalinity in vivid color.- Contains (2) Liquid Bottles and (1) Tester Vial - Ranges from pH 4 to 10 - Color... more

    $21.99 $17.32

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    Alkalife Ph Test Kit - 1 Kit

    Alkalife Ph Test Kit - 1 Kit

    Alkalife Ph Test Kit - 1 Kit : The AquaION pH test kit is the perfect way to test your water for alkalinity. This kit comes with everything you need to see your water's alkalinity in vivid color.- Contains (2) Liquid Bottles and (1) Tester Vial- Ranges... more

    $13.86

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    Hanna Ph Meter, Phep5, Hi98128 (hi 98128)

    Hanna Ph Meter, Phep5, Hi98128 (hi 98128)

    Hanna pH Meter, pHep5, HI98128 (HI 98128) This portable tester measures pH in a range of -2.0 to 16.0 with a resolution of 0.01 pH and Temperature (°C/°F). Note: It is normal for salt deposits to form on the outside of electrode cap or on cap/rim. This... more

    $98.00

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