pH and Nutrient pens

Conductivity, pH, care and calibration – in one box

Fully waterproof - not just water resistant

• Simple two-point calibration process for accuracy
• One-year peace-of-mind warranty
• Automatic temperature compensation for accurate readings everywhere
• Auto-off function to extend battery life
• 1 AAA battery included - simply power on and go

Why measure pH, conductivity and temperature?

Healthy growing plants, need a balanced diet of appropriate nutrients (food). However, plants can only access these nutrients when the nutrient solution is within a certain pH range.

From a water chemistry perspective, pH (potential Hydrogen) plays a pivotal role in making the nutrients in your solution soluble so that they can be accessed by your plants. That’s why if your growing solution becomes too acidic or too alkaline, the plants won’t be able to get access to the nutrients they need to grow. The temperature of your growing solution is equally important as having a solution that’s too hot or too cold can affect growth rate and structure.

The easiest way to keep track of the amount of nutrients in your solution is to regularly measure conductivity, which refers to the total ionic content (dissolved salts) in a solution. From a scientific perspective, when nutrients are added, this creates the potential for electricity to move through a solution, increasing the electrical conductivity.

Measuring the temperature of your solution is equally important, as - if it’s too hot or too cold - this can affect the plants’ growth rate and structure. To help your plants thrive, ensuring pH, conductivity and temperature are always in the optimal range is essential.

What is included:

• Bluelab pH meter reading pen 
• Bluelab Conductivity pen for measuring Nutrients in your water 
• Pen cleaning kit
• Calibration fluid for both pens
• Storage solution