Achieve consistent and thriving plant growth with the Bluelab pH Pen—a compact, durable, and user-friendly tool designed specifically for growers. This high-performing pH and temperature pen ensures that your plants receive the perfect nutrient balance by delivering accurate readings directly from your solution.
 
Why Measure pH and Temperature?
Healthy plants require a balanced diet, which depends on the right pH levels. The pH of your nutrient solution affects its ability to dissolve essential nutrients, making them available to your plants. An overly acidic or alkaline solution can prevent proper nutrient uptake, leading to poor growth. Additionally, the solution’s temperature impacts growth rates and plant structure.
The Bluelab pH Pen helps you monitor these vital factors, ensuring that your plants have the best chance to thrive.
 
Everyday Accuracy for Growers
The Bluelab pH Pen measures pH levels in 0.1 increments and is temperature compensated for reliable results. This ensures your plants receive optimal conditions for nutrient absorption and healthy growth.
 
Create the Perfect Starter Pack
Pair the Bluelab pH Pen with the Bluelab Conductivity Pen for a complete nutrient solution monitoring system. The conductivity pen allows you to measure EC (electrical conductivity) or PPM (parts per million) to determine nutrient levels. Together, these tools help you maintain the right balance of nutrients and pH, ensuring your plants flourish while optimizing your nutrient use.
 
Why Choose Bluelab?
Trusted by growers worldwide, the Bluelab pH Pen is a top-selling product designed with grower environments in mind. Its reliability, ease of use, and rugged build make it the go-to tool for both beginners and experienced cultivators.
Invest in the Bluelab pH Pen and gain the confidence that your plants are growing in the best possible conditions!