pH / EC / TDS Meters & Solutions

  • General Hydroponics® pH Down Liquid - 8oz
    $7.93

    General Hydroponics® pH Down Liquid - 8oz

    The acid formulation uses food-grade phosphoric acid to lower the pH to the proper level.

    $7.93
  • General Hydroponics® pH Up Liquid
    from $7.77

    General Hydroponics® pH Up Liquid

    This Base solution is formulated using potassium hydroxide and potassium carbonate. Add a little at a time when your nutrient pH is too low in orde...

    View full details
    from $7.77
  • General Hydroponics® pH Down Liquid
    from $11.73

    General Hydroponics® pH Down Liquid

    The acid formulation uses food-grade phosphoric acid to lower the pH to the proper level.

    from $11.73
  • Sure Test® Pro EC/TDS Pen
    $59.99

    Sure Test® Pro EC/TDS Pen

    The Sure Test® Pro EC/TDS Pen reads EC, TDS and temperature (ºF or ºC) with automatic temperature compensation (ATC) for more reliable conductivity...

    View full details
    $59.99
  • Bluelab® pH 7.0 Calibration Solution - 250ml
    $8.67

    Bluelab® pH 7.0 Calibration Solution - 250ml

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

    View full details
    $8.67
  • Gardena Smart Flow Water Meter
    $49.99

    Gardena Smart Flow Water Meter

    The Gardena Smart Flow Water Meter measures water usage daily, monthly, by season, or yearly. The LCD screen clearly displays information with mea...

    View full details
    $49.99
  • Grow Kings - Bluelab pH 4.0 Calibration Solution 250 ml (6/Cs)
    $8.17

    Bluelab pH 4.0 Calibration Solution 250 ml (6/Cs)

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

    View full details
    $8.17
  • Grow Kings - Bluelab pH 7.0 Calibration Solution 20 ml Sachets (25/Cs)
    $1.88

    Bluelab® Calibration Solution 20 ml Sachets

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

    View full details
    $1.88
  • Grow Kings - Rapitest Digital Soil pH Meter (12/Cs)
    $16.29

    Luster Leaf® Rapitest® Digital Soil pH Meter

    Plants need the correct pH level, which controls how well plants utilize the nutrients available in your soil. All plants have a pH prefer...

    View full details
    $16.29
  • Grow Kings - Luster Leaf® Rapitest® Soil Test Kit Model 1601
    $17.99

    Luster Leaf® Rapitest® Soil Test Kit Model 1601

    Kit includes: 4 color comparators, 40 test capsules, 10 each for pH, N, P and K, complete instructions for adjusting soil pH, fertilizatio...

    View full details
    $17.99
  • Grow Kings - Bluelab PeriPod L3
    $2,229.00

    Bluelab® PeriPod™ L3

    Peripod™ L3 doser is designed to be teamed with the Bluelab® Pro Controller™ for a fully integrated solution for optimal reservoir dosing....

    View full details
    $2,229.00
  • Grow Kings - Bluelab Pro Controller
    $1,099.00

    Bluelab® Pro Controller™

    Bluelab® Pro Controller™ automated pH and nutrient controller gives you full control of reservoir pH, conductivity and temperature in one place. Wh...

    View full details
    $1,099.00
  • Grow Kings - Bluelab Connect Stick
    $150.00

    Bluelab® Connect Product Suite

    The Bluelab Guardian Monitor Connect, Bluelab Connect Stick, Bluelab Connect Range Extender and Bluelab Connect Software. The Bluelab Guardian Moni...

    View full details
    $150.00
  • Grow Kings - Bluelab Guardian Monitor Connect In-Line
    $569.00

    Bluelab® Guardian Monitor Connect In-Line

    The Bluelab Guardian Monitor Connect In-Line is not only a constant indicator of the desired levels of pH, conductivity and temperature of your nut...

    View full details
    $569.00
  • Grow Kings - Bluelab Conductivity Pen
    $94.00

    Bluelab® ppm Pen — Now Bluelab® Conductivity Pen

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

    View full details
    $94.00
  • Grow Kings - Bluelab pH Pen
    $112.50

    Bluelab® pH Pen

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

    View full details
    $112.50
  • Grow Kings - Bluelab PeriPod M4
    $1,229.00

    Bluelab® PeriPod™ M4

    Designed to be teamed with the Bluelab® Pro Controller for a fully integrated solution for optimal reservoir dosing, the Bluelab® PeriPod™ is a sim...

    View full details
    $1,229.00
  • Grow Kings - Bluelab Multimedia pH Meter (Leap Probe Included)
    $257.00

    Bluelab® Multimedia pH Meter with Leap™ pH Probe

    The perfect, portable way to accurately measure and monitor pH levels in a wide range of media. We have combined the Bluelab® Multimedia pH Meter a...

    View full details
    $257.00
  • Grow Kings -Bluelab® Combo Meter Plus
    $348.00

    Bluelab® Combo Meter Plus

    The Bluelab® Combo Meter Plus is an all-in-one, convenient portable solution for accurate measurement of pH, conductivity and temperature in nutrie...

    View full details
    $348.00
  • Grow Kings - Sure Test GroGuru Base w/ Cellular Modem
    $1,149.00

    Sure Test® GroGuru Base with Cellular Modem

    The Sure Test® GroGuru Base (Collector) is used to collect data from the various Stems (sold separately) with sensors. The Base then forwards this ...

    View full details
    $1,149.00
  • Grow Kings - HM Digital™ pH Meter Model PH-80
    $46.50

    HM Digital™ pH Meter Model PH-80

    Resolution: pH 0.1 pH, 0.00–14.0 pH. Accurate to +/-0.1 pH. Hold button and auto shut-off. Automatic calibration: Auto-ranging to 4, 7 or 10 pH. Ve...

    View full details
    $46.50
  • Grow Kings - Bluelab pH Probe KCl Storage Solution 100 ml (6/Cs)
    from $11.94

    Bluelab® pH Probe KCI Storage Solution

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

    View full details
    from $11.94
  • Grow Kings - Bluelab® Probe Care Kit pH
    $16.50

    Bluelab® Probe Care Kit pH

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

    View full details
    $16.50