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Nutrients ControlTreatments

THE name in nutrient measurement. Reliable, functional and an absolute must for your grow room. Over feeding your plants is very harmful to them, causeing them to scorch; The Blue Lab Truncheon / Pen effectively measures your nutrient levels in your plants with such ease and precision, you’ll never have to face a dissapointing crop again.



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 handyBluelab pH Penso you have every tool required to manage your nutrient solution.

Now isn’t that Handy!

  • 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 – Truncheon Meter 

  • New Version 2 – Better Build Quality
  • Industry Standard
  • EC (0.2 – 3.6), CF (2 – 36) and ppm scales (TDS and 700 scale)
  • Fully waterproof
  • No calibration required
  • Auto sense on and off
  • No external switches or adjustable buttons
  • Battery life minimum 1 year (or shelf life of battery)

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