Bluelab® - Soil pH Pen

The Bluelab Soil pH Pen is a rugged, waterproof meter designed for precision measurement of pH and temperature in soil, coco, potting mixes, or nutrient solutions. The built-in dibber allows you to create a clean insertion point in soil before probing, protecting the sensor and extending its life. It offers 0.1 pH resolution (±0.1 accuracy) and full temperature compensation, delivering reliable readings under varying conditions.

Engineered to endure tough grow environments, it includes a backlit display, auto-off, low battery indicator, and one-year warranty. Powered by a single AAA battery, it's ready to go out of the box and designed to float if dropped in water.

Key Features:

• Measures pH (0-14) and temperature (0-50 °C / 32-122 °F)

• Resolution: 0.1 pH, 1 °C / °F; Accuracy: ±0.1 pH, ±1 °C / ±2 °F

• Automatic temperature compensation

• Includes soil dibber for safe soil insertion

• Waterproof casing and floats

• Auto-off, hold reading, and backlit display

• Powered by 1 AAA battery; one-year warranty

Perfect for direct root-zone monitoring, this pen supports healthy plant growth across media types.