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pH | ppm | EC | Instruments

  • iPower 5 Pack 2FT 6400K 24W T5 Fluorescent Grow Lamp Light Bulbs

    Original price $0.00 - Original price $0.00
    Original price $0.00
    $7.17
    $7.17 - $7.17
    Current price $7.17

    ✔Package Includes: 5 Packs T5 HO Fluorescent Grow Light Bulbs of 24W Each ✔Color Temperature: 6400K. Cool spectrum for vegetative growing ✔Lumen: 2...

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    Original price $0.00 - Original price $0.00
    Original price $0.00
    $7.17
    $7.17 - $7.17
    Current price $7.17
  • Soil pH Meter, 3-in-1 Soil Test Kit for Moisture & Light & pH, iPower

    Original price $4.20 - Original price $4.20
    Original price
    $4.20
    $4.20 - $4.20
    Current price $4.20

    A 3-in-1 soil test meter that takes the guesswork out of gardening The iPower 3-in-1 Soil Meter is three meters in one device. With our soil pH met...

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    Original price $4.20 - Original price $4.20
    Original price
    $4.20
    $4.20 - $4.20
    Current price $4.20
  • GH pH Test Kit 1 oz

    Original price $9.13
    Original price $9.13 - Original price $9.13
    Original price $9.13
    Current price $5.01
    $5.01 - $5.01
    Current price $5.01

    General Hydroponics® pH Test Kits make pH testing easy. Simply fill a test-tube halfway with nutrient, add a few drops of pH Test Indicator and obs...

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    Original price $9.13
    Original price $9.13 - Original price $9.13
    Original price $9.13
    Current price $5.01
    $5.01 - $5.01
    Current price $5.01
  • GH pH 7.01 Calibration Solution 8 oz

    Original price $9.03
    Original price $9.03 - Original price $9.03
    Original price $9.03
    Current price $4.92
    $4.92 - $4.92
    Current price $4.92

    General Hydroponics® uses the highest quality reference solutions, allowing growers to calibrate many popular brands of PH, EC and TDS meters (NaCl...

    View full details
    Original price $9.03
    Original price $9.03 - Original price $9.03
    Original price $9.03
    Current price $4.92
    $4.92 - $4.92
    Current price $4.92
  • Bluelab pH Pen

    Original price $119.00 - Original price $119.00
    Original price $119.00
    $119.00
    $119.00 - $119.00
    Current price $119.00

    Measures pH and temperature. Selectable units for °C & °F. Backlit LCD display. Double junction probe (not replaceable). Successful calibration...

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    Original price $119.00 - Original price $119.00
    Original price $119.00
    $119.00
    $119.00 - $119.00
    Current price $119.00
  • Bluelab pH 4.0 Calibration Solution 500 ml

    Original price $18.00 - Original price $18.00
    Original price $18.00
    $18.00
    $18.00 - $18.00
    Current price $18.00

    pH measuring equipment must be cleaned and calibrated regularly to ensure they are giving the user accurate readings. pH instruments are calibrated...

    View full details
    Original price $18.00 - Original price $18.00
    Original price $18.00
    $18.00
    $18.00 - $18.00
    Current price $18.00
  • Bluelab pH 7.0 Calibration Solution 500 ml

    Original price $18.00 - Original price $18.00
    Original price $18.00
    $18.00
    $18.00 - $18.00
    Current price $18.00

    pH measuring equipment must be cleaned and calibrated regularly to ensure they are giving the user accurate readings. pH instruments are calibrated...

    View full details
    Original price $18.00 - Original price $18.00
    Original price $18.00
    $18.00
    $18.00 - $18.00
    Current price $18.00
  • Out of Stock

    GH pH 4.01 Calibration Solution 8 oz

    Original price $9.03
    Original price $9.03 - Original price $9.03
    Original price $9.03
    Current price $4.92
    $4.92 - $4.92
    Current price $4.92

    General Hydroponics® uses the highest quality reference solutions, allowing growers to calibrate many popular brands of PH, EC and TDS meters (NaCl...

    View full details
    Original price $9.03
    Original price $9.03 - Original price $9.03
    Original price $9.03
    Current price $4.92
    $4.92 - $4.92
    Current price $4.92
    Out of Stock
  • FALSE
    Out of Stock

    Bluelab Growers Toolbox

    Original price $212.99 - Original price $212.99
    Original price
    $212.99
    $212.99 - $212.99
    Current price $212.99

    Original price $212.99 - Original price $212.99
    Original price
    $212.99
    $212.99 - $212.99
    Current price $212.99
    Out of Stock
  • Out of Stock

    Bluelab pH Probe KCl Storage Solution 100 ml

    Original price $12.58 - Original price $12.58
    Original price $12.58
    $12.58
    $12.58 - $12.58
    Current price $12.58

    Original price $12.58 - Original price $12.58
    Original price $12.58
    $12.58
    $12.58 - $12.58
    Current price $12.58
    Out of Stock
  • Bluelab PPM Pen

    Original price $99.00 - Original price $99.00
    Original price $99.00
    $99.00
    $99.00 - $99.00
    Current price $99.00

    Measures conductivity and temperature. Selectable units for conductivity and temperature. Backlit LCD display with low battery warning. Successful ...

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    Original price $99.00 - Original price $99.00
    Original price $99.00
    $99.00
    $99.00 - $99.00
    Current price $99.00
  • Bluelab Replacement pH Probe

    Original price $79.00 - Original price $79.00
    Original price $79.00
    $79.00
    $79.00 - $79.00
    Current price $79.00

    The Bluelab® Combo Meter is a conductivity, pH and temperature meter all in one. As the Bluelab® Combo Meter is portable and does not require a pow...

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    Original price $79.00 - Original price $79.00
    Original price $79.00
    $79.00
    $79.00 - $79.00
    Current price $79.00
  • HM Digital Handheld TDS-3 Tester

    Original price $28.51
    Original price $28.51 - Original price $28.51
    Original price $28.51
    Current price $18.21
    $18.21 - $18.21
    Current price $18.21

    Ideal for commercial use. Includes a carrying case with belt clip. Highly efficient and accurate due to its advanced microprocessor technology. Hol...

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    Original price $28.51
    Original price $28.51 - Original price $28.51
    Original price $28.51
    Current price $18.21
    $18.21 - $18.21
    Current price $18.21
  • GH pH 7.01 Calibration Solution Quart

    Original price $25.75
    Original price $25.75 - Original price $25.75
    Original price $25.75
    Current price $13.95
    $13.95 - $13.95
    Current price $13.95

    General Hydroponics® uses the highest quality reference solutions, allowing growers to calibrate many popular brands of PH, EC and TDS meters (NaCl...

    View full details
    Original price $25.75
    Original price $25.75 - Original price $25.75
    Original price $25.75
    Current price $13.95
    $13.95 - $13.95
    Current price $13.95
  • Out of Stock

    Bluelab pH 7.0 Calibration Solution 250 ml

    Original price $10.00 - Original price $10.00
    Original price $10.00
    $10.00
    $10.00 - $10.00
    Current price $10.00

    pH measuring equipment must be cleaned and calibrated regularly to ensure they are giving the user accurate readings. pH instruments are calibrated...

    View full details
    Original price $10.00 - Original price $10.00
    Original price $10.00
    $10.00
    $10.00 - $10.00
    Current price $10.00
    Out of Stock
  • Out of Stock

    Milwaukee pH Meter pH600 AQ

    Original price $24.99 - Original price $24.99
    Original price
    $24.99
    $24.99 - $24.99
    Current price $24.99

    Original price $24.99 - Original price $24.99
    Original price
    $24.99
    $24.99 - $24.99
    Current price $24.99
    Out of Stock
  • iPower High Accuracy Pocket Size Portable pH Meter pH Tester

    Original price $0.00 - Original price $0.00
    Original price $0.00
    $4.70
    $4.70 - $4.70
    Current price $4.70

    Digital PH Meter Water Tester This pH meter is affordable and useful for those who need a PH tester for household and laboratory use. Its not only ...

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    Original price $0.00 - Original price $0.00
    Original price $0.00
    $4.70
    $4.70 - $4.70
    Current price $4.70
  • Bluelab 2.77EC Conductivity Solution 500 ml

    Original price $18.00 - Original price $18.00
    Original price $18.00
    $18.00
    $18.00 - $18.00
    Current price $18.00

    The EC2.77 solution is used as a reference or checking solution to ensure you have adequately cleaned the EC/ppm probe. Calibration Solutions shoul...

    View full details
    Original price $18.00 - Original price $18.00
    Original price $18.00
    $18.00
    $18.00 - $18.00
    Current price $18.00
  • iPower 5 Pack 2FT 2700K 24W T5 Fluorescent Grow Lamp Light Bulbs

    Original price $7.29 - Original price $7.29
    Original price
    $7.29
    $7.29 - $7.29
    Current price $7.29

    ✔Package Includes: 5 Packs T5 HO Fluorescent Grow Light Bulbs of 24W Each ✔Color Temperature: 2700K. Warm spectrum for flower production ✔Lumen: 22...

    View full details
    Original price $7.29 - Original price $7.29
    Original price
    $7.29
    $7.29 - $7.29
    Current price $7.29
  • iPower 4-Pack 19" Clean Cut Bowl Leaf Trimmer Replacement Stainless Cutting Blade, 2 Serrated Blades & 2 Straight Blades

    Original price $13.81 - Original price $13.81
    Original price
    $13.81
    $13.81 - $13.81
    Current price $13.81

    - FUNCTION: Stainless steel, razor sharp for crisp, clean cuts, replacement cutting blade for iPower 19" bowl trimmers- INCLUDES 4 BLADES: 2 serrat...

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    Original price $13.81 - Original price $13.81
    Original price
    $13.81
    $13.81 - $13.81
    Current price $13.81
  • Bluelab pH 4.0 Calibration Solution 250 ml

    Original price $10.00 - Original price $10.00
    Original price $10.00
    $10.00
    $10.00 - $10.00
    Current price $10.00

    pH measuring equipment must be cleaned and calibrated regularly to ensure they are giving the user accurate readings. pH instruments are calibrated...

    View full details
    Original price $10.00 - Original price $10.00
    Original price $10.00
    $10.00
    $10.00 - $10.00
    Current price $10.00
  • Out of Stock

    Oakton Waterproof EcoTestr pH 1

    Original price $77.02
    Original price $77.02 - Original price $77.02
    Original price $77.02
    Current price $45.95
    $45.95 - $45.95
    Current price $45.95

    Original price $77.02
    Original price $77.02 - Original price $77.02
    Original price $77.02
    Current price $45.95
    $45.95 - $45.95
    Current price $45.95
    Out of Stock
  • iPower 4-Pack 13.4" (L) x 0.4" (W) Inch Trimmer Blade Replacement 16" Inch Bud Trimmer Bowl, 2 Serrated & 2 Straight Blades

    Original price $11.48 - Original price $11.48
    Original price
    $11.48
    $11.48 - $11.48
    Current price $11.48

    FUNCTION: Stainless steel, razor sharp for crisp, clean cuts, replacement cutting blade for iPower 16" bowl trimmers INCLUDES 4 BLADES: 2 serrat...

    View full details
    Original price $11.48 - Original price $11.48
    Original price
    $11.48
    $11.48 - $11.48
    Current price $11.48
  • FALSE
    Out of Stock

    Bluelab pH Down 1 Gallon

    Original price $0.00 - Original price $0.00
    Original price $0.00
    $40.50
    $40.50 - $40.50
    Current price $40.50

    Original price $0.00 - Original price $0.00
    Original price $0.00
    $40.50
    $40.50 - $40.50
    Current price $40.50
    Out of Stock
  • Out of Stock

    GH pH 4.01 Calibration Solution Quart

    Original price $25.75
    Original price $25.75 - Original price $25.75
    Original price $25.75
    Current price $13.95
    $13.95 - $13.95
    Current price $13.95

    General Hydroponics® uses the highest quality reference solutions, allowing growers to calibrate many popular brands of PH, EC and TDS meters (NaCl...

    View full details
    Original price $25.75
    Original price $25.75 - Original price $25.75
    Original price $25.75
    Current price $13.95
    $13.95 - $13.95
    Current price $13.95
    Out of Stock
  • Out of Stock

    HM Digital Water Resistant Ec-TDS Meter with Temperature in C-F Hydrotester (Model COM-80)

    Original price $43.81
    Original price $43.81 - Original price $43.81
    Original price $43.81
    Current price $28.07
    $28.07 - $28.07
    Current price $28.07

    Original price $43.81
    Original price $43.81 - Original price $43.81
    Original price $43.81
    Current price $28.07
    $28.07 - $28.07
    Current price $28.07
    Out of Stock
  • Out of Stock

    Bluelab Soil pH Pen

    Original price $191.00
    Original price $191.00 - Original price $191.00
    Original price $191.00
    Current price $156.99
    $156.99 - $156.99
    Current price $156.99

    Original price $191.00
    Original price $191.00 - Original price $191.00
    Original price $191.00
    Current price $156.99
    $156.99 - $156.99
    Current price $156.99
    Out of Stock
  • Out of Stock

    Rapitest Digital Soil pH Meter

    Original price $10.99 - Original price $10.99
    Original price
    $10.99
    $10.99 - $10.99
    Current price $10.99

    Original price $10.99 - Original price $10.99
    Original price
    $10.99
    $10.99 - $10.99
    Current price $10.99
    Out of Stock
  • Out of Stock

    HM Digital pH 80 Meter

    Original price $46.50
    Original price $46.50 - Original price $46.50
    Original price $46.50
    Current price $35.71
    $35.71 - $35.71
    Current price $35.71

    Original price $46.50
    Original price $46.50 - Original price $46.50
    Original price $46.50
    Current price $35.71
    $35.71 - $35.71
    Current price $35.71
    Out of Stock
  • Bluelab 2.77EC Conductivity Solution 250 ml

    Original price $10.00 - Original price $10.00
    Original price $10.00
    $10.00
    $10.00 - $10.00
    Current price $10.00

    The EC2.77 solution is used as a reference or checking solution to ensure you have adequately cleaned the EC/ppm probe. Calibration Solutions shoul...

    View full details
    Original price $10.00 - Original price $10.00
    Original price $10.00
    $10.00
    $10.00 - $10.00
    Current price $10.00
  • Bluelab Probe Care Kit - pH

    Original price $22.00 - Original price $22.00
    Original price $22.00
    $22.00
    $22.00 - $22.00
    Current price $22.00

    Everything you need to clean, hydrate and calibrate pH probes. Probe cleaning and correctly storing pH probes ensures you get the most accurate rea...

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    Original price $22.00 - Original price $22.00
    Original price $22.00
    $22.00
    $22.00 - $22.00
    Current price $22.00
  • Out of Stock

    SureTest pH Test Strip Kit 5.5 - 8.0

    Original price $7.99 - Original price $7.99
    Original price
    $7.99
    $7.99 - $7.99
    Current price $7.99

    Original price $7.99 - Original price $7.99
    Original price
    $7.99
    $7.99 - $7.99
    Current price $7.99
    Out of Stock
  • Out of Stock

    Rapitest Mini pH Tester

    Original price $6.30 - Original price $6.30
    Original price
    $6.30
    $6.30 - $6.30
    Current price $6.30

    Original price $6.30 - Original price $6.30
    Original price
    $6.30
    $6.30 - $6.30
    Current price $6.30
    Out of Stock
  • Out of Stock

    HM Digital Waterproof pH Meter

    Original price $101.95
    Original price $101.95 - Original price $101.95
    Original price $101.95
    Current price $78.99
    $78.99 - $78.99
    Current price $78.99

    Original price $101.95
    Original price $101.95 - Original price $101.95
    Original price $101.95
    Current price $78.99
    $78.99 - $78.99
    Current price $78.99
    Out of Stock
  • Out of Stock

    Rapitest Soil Test pH N,P,K (6-Cs)

    Original price $13.99 - Original price $13.99
    Original price
    $13.99
    $13.99 - $13.99
    Current price $13.99

    Original price $13.99 - Original price $13.99
    Original price
    $13.99
    $13.99 - $13.99
    Current price $13.99
    Out of Stock
  • Out of Stock

    24-7 Nutrient Monitor

    Original price $159.99 - Original price $159.99
    Original price
    $159.99
    $159.99 - $159.99
    Current price $159.99

    Original price $159.99 - Original price $159.99
    Original price
    $159.99
    $159.99 - $159.99
    Current price $159.99
    Out of Stock
  • Out of Stock

    HM Digital pH Electrode Storage Solution

    Original price $5.11 - Original price $5.11
    Original price
    $5.11
    $5.11 - $5.11
    Current price $5.11

    Original price $5.11 - Original price $5.11
    Original price
    $5.11
    $5.11 - $5.11
    Current price $5.11
    Out of Stock
  • FALSE

    Bluelab pH Probe KCI Storage Solution 250ml

    Original price $23.33 - Original price $23.33
    Original price $23.33
    $23.33
    $23.33 - $23.33
    Current price $23.33

    The perfect solution to store and hydrate your Bluelab pH products. Bluelab® pH Probe KCl Storage Solution is made specifically for use with Bluela...

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    Original price $23.33 - Original price $23.33
    Original price $23.33
    $23.33
    $23.33 - $23.33
    Current price $23.33
  • FALSE
    Out of Stock

    Bluelab pH Down 1 Liter

    Original price $0.00 - Original price $0.00
    Original price $0.00
    $12.99
    $12.99 - $12.99
    Current price $12.99

    Original price $0.00 - Original price $0.00
    Original price $0.00
    $12.99
    $12.99 - $12.99
    Current price $12.99
    Out of Stock
  • FALSE

    Bluelab Guardian Monitor Power Supply

    Original price $29.00 - Original price $29.00
    Original price $29.00
    $29.00
    $29.00 - $29.00
    Current price $29.00

    Bluelab Guardian Monitor Power Supply

    Original price $29.00 - Original price $29.00
    Original price $29.00
    $29.00
    $29.00 - $29.00
    Current price $29.00
  • Out of Stock

    Accurate pH 8 Soil pH & Moisture Meter

    Original price $71.99 - Original price $71.99
    Original price
    $71.99
    $71.99 - $71.99
    Current price $71.99

    Original price $71.99 - Original price $71.99
    Original price
    $71.99
    $71.99 - $71.99
    Current price $71.99
    Out of Stock
  • Out of Stock

    HortiCare Nutrient Check PPM

    Original price $62.16 - Original price $62.16
    Original price
    $62.16
    $62.16 - $62.16
    Current price $62.16

    Original price $62.16 - Original price $62.16
    Original price
    $62.16
    $62.16 - $62.16
    Current price $62.16
    Out of Stock
  • FALSE

    Bluelab pH Controller

    Original price $699.00 - Original price $699.00
    Original price $699.00
    $699.00
    $699.00 - $699.00
    Current price $699.00

    Hands-free monitoring and dosing of solution pH levels. Our clever pH controller automatically monitors and fine-tunes the pH levels for you. You s...

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    Original price $699.00 - Original price $699.00
    Original price $699.00
    $699.00
    $699.00 - $699.00
    Current price $699.00
  • Out of Stock

    HM Digital Aquapro TDS Water Tester

    Original price $25.80 - Original price $25.80
    Original price
    $25.80
    $25.80 - $25.80
    Current price $25.80

    Original price $25.80 - Original price $25.80
    Original price
    $25.80
    $25.80 - $25.80
    Current price $25.80
    Out of Stock
  • Out of Stock

    GH 1500 PPM Reference Solution 8 oz

    Original price $5.99 - Original price $5.99
    Original price
    $5.99
    $5.99 - $5.99
    Current price $5.99

    Original price $5.99 - Original price $5.99
    Original price
    $5.99
    $5.99 - $5.99
    Current price $5.99
    Out of Stock
  • Out of Stock

    HM Waterproof EC-TDS-Temp Combo Meter

    Original price $56.99 - Original price $56.99
    Original price
    $56.99
    $56.99 - $56.99
    Current price $56.99

    Original price $56.99 - Original price $56.99
    Original price
    $56.99
    $56.99 - $56.99
    Current price $56.99
    Out of Stock
  • FALSE
    Out of Stock

    Bluelab pH Up 1 Liter

    Original price $0.00 - Original price $0.00
    Original price $0.00
    $16.95
    $16.95 - $16.95
    Current price $16.95

    Our new pH Up and pH Down solutions can be used undiluted with the Bluelab pH Controller and Bluelab pH Controller Connect. They're manufactured wi...

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    Original price $0.00 - Original price $0.00
    Original price $0.00
    $16.95
    $16.95 - $16.95
    Current price $16.95
    Out of Stock
  • Bluelab Guardian Connect

    Original price $479.00 - Original price $479.00
    Original price $479.00
    $479.00
    $479.00 - $479.00
    Current price $479.00

    The Bluelab Guardian Monitor Connect is not only a constant indicator of the desired levels of pH, conductivity and temperature of your nutrient so...

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    Original price $479.00 - Original price $479.00
    Original price $479.00
    $479.00
    $479.00 - $479.00
    Current price $479.00
pH/EC Maintenance