Bluelab pH Pen

Bluelab pH pen is a temperature pen that was made to be hardy and compact.

• Fully waterproof.
• Accuracy with a simple two-point calibration process.
• Accurate readings with automatic temperature compensation.
• Extended battery life with auto-off function.
• One-year warranty.
• Create the ultimate Grower’s Toolbox with the Bluelab Conductivity Pen.

Note: Requires 1 x AAA batteries.

Measuring pH and temperature is important to ensure your plants are able to access the nutrients in the nutrient solution, the right pH making the nutrients soluble, whilst the wrong temperature can stunt a plant’s growth rate and structure. With these measurements, you can ensure your plants can thrive in optimal pH and temperature ranges.