pH / EC / TDS Meters & Solutions

  • Grow Kings - Mad Farmer Get Up Quart (12/Cs)
    from $10.99

    Mad Farmer Get Up Quart (12/Cs)

    Mad Farmer Get Up™ is proudly made in the USA and is specifically designed to raise the pH levels of liquid nutrient solutions. It is comp...

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    from $10.99
  • Grow Kings - Bond 3 Way Soil Meter (12/Cs)
    $13.25

    Bond® 3 Way Soil Meter

    Measures moisture content of soil. Lets you know to water. Helps you determine if plant is getting adequate light. Helps you control pH le...

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    $13.25
  • Grow Kings - Soil Savvy - Soil Test Kit (12/Cs)
    $34.99

    Soil Savvy™ Soil Test Kit

    Soil Testing Simplified! Soil Savvy™ is a teady-to-use professional-grade soil test kit available to the general public that provides an e...

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    $34.99
  • 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 ...

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    $8.17
  • Grow Kings - Bluelab pH 7.0 Calibration Solution 500 ml (6/Cs)
    $11.10

    Bluelab pH 7.0 Calibration Solution 500 ml (6/Cs)

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

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    $11.10
  • Grow Kings - Bluelab pH 7.0 Calibration Solution 20 ml Sachets (25/Cs)
    $1.80

    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...

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    $1.80
  • Grow Kings - Alchemist pH Up Non-Caustic Quart (12/Cs)
    from $18.99

    Alchemist® pH Up Non-Caustic

    Alchemist pH Up is comprised of very pure, food-safe ingredients. This unique buffer is non-toxic, non-caustic and non-hazardous, making i...

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    from $18.99
  • Grow Kings - Alchemist® pH Down Non-Corrosive
    from $18.99

    Alchemist® pH Down Non-Corrosive

    Alchemist pH Down is comprised of very pure, food-safe ingredients. This unique buffer is non-toxic, non-corrosive and non-hazardous, maki...

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    from $18.99
  • Grow Kings - GH pH 7.01 Calibration Solution 8 oz (12/Cs)
    $7.96

    General Hydroponics® Meter Calibration Solutions

    General Hydroponics™ uses the highest-quality reference solutions, allowing growers to calibrate many popular brands of PH, EC and TDS met...

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    $7.96
  • Grow Kings - GH pH 4.01 Calibration Solution 8 oz (12/Cs)
    $7.96

    722015 - GH pH 4.01 Calibration Solution

    General Hydroponics™ uses the highest-quality reference solutions, allowing growers to calibrate many popular brands of PH, EC and TDS met...

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    $7.96
  • Grow Kings - GH 1500 PPM Reference Solution 8 oz (12/Cs)
    $8.66

    GH 1500 PPM Reference Solution 8 oz (12/Cs)

    General Hydroponics™ uses the highest-quality reference solutions, allowing growers to calibrate many popular brands of PH, EC and TDS met...

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    $8.66
  • 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...

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    $16.29
  • Grow Kings - Milwaukee Martini pH55 - pH/Temp Tester
    $88.99

    Milwaukee Instruments Martini pH55 pH/Temp Tester

    This is a waterproof pH tester with large dual-level LCD that displays pH and temperature (C or F). The large display shows readings in an...

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    $88.99
  • 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...

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    $17.99
  • Grow Kings - Rapitest pH Soil Tester (12/Cs)
    $5.99

    Luster Leaf® Rapitest® pH Soil Tester Model 1612

    Kit includes: color comparator, 10 pH test capsules, complete instructions for adjusting soil pH and pH preferences list for over 450 plan...

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    $5.99
  • Grow Kings - Luster Leaf® Rapitest® 4 Way Analyzer Model 1880
    $39.99

    Luster Leaf® Rapitest® 4 Way Analyzer Model 1880

    Measures four different levels for fertilizer, light, moisture and pH. Includes instructions and guides for all four measuring levels. Ins...

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    $39.99
  • Grow Kings - Milwaukee pH Controller
    $215.99

    Milwaukee Instruments pH Controller - MC122

    Professional pH controller especially designed for use with hydroponic systems and aquariums. Range: 0.0 to 14.0, 2 point manual calibrati...

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    $215.99
  • Grow Kings - Milwaukee pH Meter pH600 AQ
    $35.95

    Milwaukee Instruments pH Tester Model pH600 AQ

    Milwaukee’s most affordable pH tester, range: 0.0 to 14.0 pH, with one point manual calibration and accuracy of ±0.2 pH. Battery life: 700...

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    $35.95
  • Grow Kings - Milwaukee Instruments pH Controller with Dosing Pump Kit Model MC720
    $352.99

    Milwaukee Instruments pH Controller with Dosing Pump Kit Model MC720

    The small and precise flow of the MP810 provides fully automated pH control of aqueous solutions in the hydroponic systems. It has been sp...

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    $352.99
  • Grow Kings - Bluelab Inline pH Probe (Replacement Probe Guardian Monitor Connect In-Line)
    $180.00

    Bluelab Inline pH Probe (Replacement Probe 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...

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    $180.00
  • Grow Kings - Bluelab pH Controller Power Supply
    $35.00

    Bluelab pH Controller Power Supply

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

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    $35.00
  • Grow Kings - Bluelab Sample Pot
    $199.00

    Bluelab® Sample Pot

    The Bluelab® Sample Pot is perfect for reservoirs located more than 6.5 ft from your controller unit. All you have to do is place the prob...

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    $199.00
  • Grow Kings - Bluelab® External Lockout & Alarm Box
    $59.00

    Bluelab® External Lockout & Alarm Box

    Use the Bluelab® External Lockout & Alarm Box to connect the Bluelab® Pro Controller™ to external switches, for example, a float switc...

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    $59.00
  • Grow Kings - Bluelab PowerPod
    $550.00

    Bluelab® PowerPod™

    The Bluelab® PowerPod™ is an electronically controlled mains switching box that is designed to activate mains powered equipment via contro...

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    $550.00