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End-of-Summer Sale on LED Grow Lights, Presses, Hydro, and more! | VIEW DISCOUNTS
End-of-Summer Sale on LED Grow Lights, Presses, Hydro, and more! | VIEW DISCOUNTS

Meters / Testers / Monitors

  • Original price $99.95 - Original price $99.95
    Original price
    $99.95
    $99.95 - $99.95
    Current price $99.95

    Bluelab pH Meter

    In stock

    Bluelab pH Meter | Fully Waterproof | Simple Calibration This user-friendly and hardy handheld pen will take measurements in increments of 0.1 pH...

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    Original price $99.95 - Original price $99.95
    Original price
    $99.95
    $99.95 - $99.95
    Current price $99.95
  • Original price $99.95 - Original price $99.95
    Original price
    $99.95
    $99.95 - $99.95
    Current price $99.95

    Bluelab PPM Meter

    In stock

    Bluelab | PPM Meter | Measures EC+TDS+CF & Temperature Providing quick and accurate readings at the click of a button, you can rest assured t...

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    Original price $99.95 - Original price $99.95
    Original price
    $99.95
    $99.95 - $99.95
    Current price $99.95
  • Original price $248.00 - Original price $248.00
    Original price
    $248.00
    $248.00 - $248.00
    Current price $248.00

    GroLine Hydroponic Waterproof Pocket pH/EC/TDS/Temperature Tester (HI98131)

    In stock

    HI98131 Waterproof Pocket pH/EC/TDS/Temperature Tester The HI98131 is a slim, lightweight, and waterproof pocket tester that measures pH, conducti...

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    Original price $248.00 - Original price $248.00
    Original price
    $248.00
    $248.00 - $248.00
    Current price $248.00
  • Original price $66.00 - Original price $66.00
    Original price
    $66.00
    $66.00 - $66.00
    Current price $66.00

    GroLine Hydroponics pH Tester (HI98115)

    In stock

    HI98115 GroLine Hydroponics pH Tester The HI98115 is a GroLine pH tester with advanced features for the measurement of pH in hydroponic nut...

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    Original price $66.00 - Original price $66.00
    Original price
    $66.00
    $66.00 - $66.00
    Current price $66.00
  • Original price $435.00 - Original price $435.00
    Original price
    $435.00
    $435.00 - $435.00
    Current price $435.00

    GroLine Monitor for Hydroponic Nutrients (HI981420)

    In stock

    HI981420 Hydroponics Monitor The HI981420 GroLine Monitor for Hydroponic Nutrients provides around-the-clock, continuous monitoring of pH, conduc...

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    Original price $435.00 - Original price $435.00
    Original price
    $435.00
    $435.00 - $435.00
    Current price $435.00
  • Original price $556.00 - Original price $556.00
    Original price
    $556.00
    $556.00 - $556.00
    Current price $556.00

    GroLine Monitor for Hydroponic Nutrients with Inline Probe (HI981421)

    In stock

    HI981421 Monitor for Hydroponic Nutrients with Inline Prober The HI981421 GroLine Monitor for Hydroponic Nutrients provides around-the-clock, con...

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    Original price $556.00 - Original price $556.00
    Original price
    $556.00
    $556.00 - $556.00
    Current price $556.00
  • Original price $451.00 - Original price $741.00
    Original price
    $451.00
    $451.00 - $741.00
    Current price $451.00

    GroLine Nutrient Dosing System (HI981413)

    In stock

    HI981413 Nutrient Dosing System The HI981413 Nutrient Dosing System is engineered for maintaining the concentration of fertilizer in the nutrient ...

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    Original price $451.00 - Original price $741.00
    Original price
    $451.00
    $451.00 - $741.00
    Current price $451.00
  • Original price $446.00 - Original price $736.00
    Original price
    $446.00
    $446.00 - $736.00
    Current price $446.00

    GroLine pH Dosing System (HI981412)

    In stock

    HI981412 pH Dosing System Maintaining the correct pH of plant soil or hydroponic nutrient solution is an ongoing task. Macro and micro nutrients, ...

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    Original price $446.00 - Original price $736.00
    Original price
    $446.00
    $446.00 - $736.00
    Current price $446.00
  • Original price $143.00 - Original price $143.00
    Original price
    $143.00
    $143.00 - $143.00
    Current price $143.00

    GroLine Soil pH Tester (HI981030)

    In stock

    HI981030 Soil pH Tester Designed to bring simplicity to pH testing of soil, the HI981030 GroLine Soil pH Tester is designed for taking dire...

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    Original price $143.00 - Original price $143.00
    Original price
    $143.00
    $143.00 - $143.00
    Current price $143.00
  • Original price $142.00 - Original price $142.00
    Original price
    $142.00
    $142.00 - $142.00
    Current price $142.00

    GroLine Soil Test™ Direct Soil Conductivity Tester (HI98331)

    In stock

    HI98331 Direct Soil Conductivity Tester The HI98331 Soil Test™ is a pocket tester specifically designed to directly measure soil conductivit...

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    Original price $142.00 - Original price $142.00
    Original price
    $142.00
    $142.00 - $142.00
    Current price $142.00
  • Original price $104.00 - Original price $104.00
    Original price
    $104.00
    $104.00 - $104.00
    Current price $104.00

    GroLine Waterproof EC/TDS (ppm) Tester (HI98318)

    In stock

    HI98318 Waterproof EC/TDS (ppm) Tester The HI98318 is our latest pocket meter for measuring the EC/TDS of a hydroponic nutrient solution. Th...

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    Original price $104.00 - Original price $104.00
    Original price
    $104.00
    $104.00 - $104.00
    Current price $104.00
  • Original price $104.00 - Original price $104.00
    Original price
    $104.00
    $104.00 - $104.00
    Current price $104.00

    GroLine Waterproof Hydroponic pH Tester (HI98118)

    In stock

    HI98118 Waterproof Hydroponic pH Tester The GroLine HI98118 pH/temperature tester is our latest pocket meter for measuring the pH of a hydro...

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    Original price $104.00 - Original price $104.00
    Original price
    $104.00
    $104.00 - $104.00
    Current price $104.00
  • Original price $307.00 - Original price $307.00
    Original price
    $307.00
    $307.00 - $307.00
    Current price $307.00

    GroLine Waterproof Portable pH/EC/TDS Meter (HI9814)

    In stock

    HI9814 Waterproof Portable pH/EC/TDS Meter Designed to bring simplicity to nutrient testing, the HI9814 Portable GroLine Meter is designed specifi...

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    Original price $307.00 - Original price $307.00
    Original price
    $307.00
    $307.00 - $307.00
    Current price $307.00

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