Bluelab pH Pen

The Bluelab pH Pen is a rugged, user-friendly handheld meter designed for precision pH and temperature measurement in nutrient solutions. Fully waterproof and floats if dropped, it features automatic temperature compensation, a backlit LCD, and easy two-point calibration for reliable accuracy. The pen offers ±0.1 pH and ±1 °C / ±2 °F precision, with an auto-off function to preserve battery life. Ideal for growers needing fast, accurate readings in dynamic environments. Includes one AAA battery and is covered by a one-year warranty.

Key Features:

• Measures pH (0.0-14.0) and temperature (0-50 °C / 32-122 °F)

• Resolution: 0.1 pH, 1 °C / 1 °F

• Accuracy: ±0.1 pH, ±1 °C / ±2 °F

• Automatic temperature compensation and backlit display

• Waterproof, floats, with auto-off and low-battery alert

• Simple two-point calibration (pH 7 and 4 or 10)

• Powered by one AAA battery

• One-year warranty

• Designed and manufactured in New Zealand