pH

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    General Hydroponics pH Test Indicator 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 observe the coloration of the liquid in the test vial. Many experienced growers prefer our pH Test Kit to expensive electronic meters because of its reliability and ease of use, which are important factors when the health of a valuable crop is at stake. Use 3 drops per 5mL of solution.

    • $14.95

    Score: 3.07 (votes: 1113)
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    Bluelab Combo Meter

    It's all you need for simple and reliable crop management

    It's all you need for simple and reliable crop management.

    The Bluelab Combo Meter is a portable pH, conductivity and temperature meter all in one. If you are experiencing problems with yellow leaves, or slow stunted growth, the Bluelab Combo Meter will soon tell you if each parameter is within the plants requirements. Adjustments can be quickly made to get your crop back on track.


    The Bluelab Combo Meter has two probes, a Bluelab pH Probe and a Bluelab Conductivity/Temperature Probe. When taking a reading, simply place them into the solution and the selected reading is displayed on screen. As the Bluelab Combo Meter is portable and does not require a power supply to operate, it can be used anywhere, anytime to help you manage your crops’ daily nutrient requirements.


    Calibration of the pH probe is simple as instructions are supplied on the back of the meter and the easy push button method makes this one of the simplest meters to use.


    The pH probe is replaceable so you can use this meter for years to come. The Conductivity/temperature probe does not require calibration as this is locked in during manufacture.


    Often referred to as “The Cadillac of Meters”!

    • $289.95

    Score: 3.02 (votes: 1493)
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    The Nutradip GrowBoss is the meter you have always wanted. This meter didn't happen by accident, it has been designed and manufactured by the creators of the "Original" three in one meter for the hydroponic industry the Trimeter. The Nutradip GrowBoss meets todays demand for better and more reliable information about your growing environment as it pertains to the parameters of your growing solution.

    • $299.99

    Score: 3.12 (votes: 1404)
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    Bluelab Conductivity Pen (EC or ppm)

    The ultimate handy solution for measuring conductivity (EC or ppm) and temperature!

    The ultimate handy solution for measuring conductivity (EC or ppm) and temperature!

    The Bluelab Conductivity Pen simply tells you that your plants have the right amount of nutrient in your solution and lets you know if adjustments are needed. To feed plants well, we need to know what we're feeding them. Start with a quality nutrient.


    Measuring the conductivity every day is the best way to avoid over-diluting or over-concentrating your nutrient solution. Completely change the reservoir solution every 7 days. Top up the nutrient level between changes - so your plants always have the right amount of food.


    The Bluelab Conductivity Pen also measures the temperature of the solution, as root health is vital to the success of a crop. Temperature affects the growth rate and structure of a plant so a solution temperature of 18 - 22˚C or 65 - 72˚F is recommended.


    To make sure the plants can get at the food, you need to measure the pH of the solution. Check out our handy Bluelab pH Pen so you have every tool required to manage your nutrient solution.


    Now isn't that Handy!

    Features

     

    • Measures conductivity and temperature
    • Selectable units for conductivity and temperature
    • Backlit LCD display
    • Calibration optional
    • Successful EC or ppm calibration indicator
    • Hold reading function
    • Low battery indicator
    • Fully waterproof
    • Auto off function
    • Automatic temperature compensation
    • 1 x AAA alkaline battery included


    Bluelab-limited-guarantee-1-year
    Guarantee
    1 year guarantee for Bluelab Conductivity Pens
    (proof of purchase is required)
    • $119.99

    Score: 2.88 (votes: 1179)
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    Bluelab pH Pen

    The ultimate handy solution for measuring pH and temperature!

    The ultimate handy solution for measuring pH and temperature!

    Plants get their nutrient from minerals but they can only get all the right minerals they need if certain conditions are right. Think of nutrients like a lock. pH is the key. A key factor that affects food uptake is whether your solution is acid or alkaline. We measure this in pH.


    The Bluelab pH Pen also measures the temperature of the solution, as root health is vital to the success of a crop. Temperature affects the growth rate and structure of a plant so a solution temperature of 18 - 22˚C or 65 - 72˚F is recommended.


    The hand held pH pen provides a compact quick and handy way to manage the success of your crop to ensure maximum uptake of nutrients.


    Teamed with our Bluelab ppm or EC Pen, you have a handy, convenient and accurate system for ensuring optimum plant growth and health.


    Now isn't that Handy!

    Features

     

    • Measures pH and temperature
    • Selectable units for temperature
    • Backlit LCD display
    • Double junction probe (not replaceable)
    • Successful pH calibration indicator
    • Hold reading function
    • Low battery indicator
    • Fully waterproof
    • Auto off function
    • Automatic temperature compensation
    • 1 x AAA alkaline battery included


    Bluelab-limited-guarantee-1-year
    Guarantee
    1 year guarantee for Bluelab pH Pen
    (proof of purchase is required)

     

    • $129.99

    Score: 2.92 (votes: 1325)
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    Bluelab Soil pH Pen

    The ultimate handy solution for measuring soil pH and temperature!

    The ultimate handy solution for measuring soil pH and temperature!

    The Bluelab Soil pH Pen provides a pH and temperature reading of soils and media, so you know that the right nutrients will be made available to your plants.
     
    In soils or growing media, pH strongly influences the availability of the microorganisms to plants in the soil. Now you can closely monitor and adjust the pH levels to optimize plant health and performance.
     
    It will also measure solutions too…

    Now isn't that Handy!

    Features

     
    • Direct pH and temperature measurements into soils/media
    • Backlit LCD display
    • Hold reading function
    • Integrated storage cap/dibber
    • Successful pH calibration indicator
    • Low battery indicator
    • Fully waterproof
    • Auto off function
    • Selectable units for temperature
    • Automatic temperature compensation
    • 1 x AAA alkaline battery included

    Bluelab-limited-guarantee-1-year
    Guarantee
    1 year guarantee for Bluelab Soil pH Pen
    (proof of purchase is required)
    • $169.99

    Score: 2.65 (votes: 1422)
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    Bluelab Guardian Monitor

    The simplest and most effective reservoir monitor you could ever own!

    The Bluelab Guardian Monitor provides 24 hour continuous reading for pH, conductivity (EC/ppm 700/TDS/CF) and temperature within a nutrient solution.

    Optimizing these critical parameters through a plants’ growing phase helps ensure a successful crop.

    Designed for indoor use, the Guardian Monitor can be mounted on a wall or hung on a support bar. Set up your reservoir, place the pH and conductivity probes in the solution, then adjust and glance!

    Simply set high and low alarm states – if the solution moves away from the ideal range, the display flashes. A quick look at the monitor will let you know when your nutrient solution needs adjusting.

    Features

     

    • Plant-safe green LEDs
    • Large easy to read displays
    • No calibration required for conductivity and temperature
    • Simple push button pH calibration
    • Selectable values for conductivity and temperature
    • Flashing high and low alarms
    • Greater tolerance to RF / electronic interference provided
    • Water resistant design
    • International power supply included
    • Replaceable double junction pH probe included
    • Adjustable display brightness
    • Non-volatile memory (setting retained when power lost)


    Bluelab-limited-guarantee-2-years      Bluelab-limited-guarantee-6-months
    Guarantee
    2 year guarantee for Bluelab Guardian Monitor
    6 month guarantee for Bluelab pH Probe
    (proof of purchase is required)
    • $559.99

    Score: 4.00 (votes: 1)
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    Score: 3.12 (votes: 1404)
    • $299.99
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