Bluelab Soil pH Pen
The Bluelab Soil pH Pen measures pH and temperature directly in soil, coco coir, rockwool, and nutrient solutions. Designed for convenient root zone testing, it features a waterproof body, backlit display, and double-junction pH probe for accurate, reliable measurements.
Key Features
- Measures pH and temperature in soil, substrates, and solutions
- Waterproof design with backlit display
- Double-junction pH probe
- pH accuracy of ±0.1
- Automatic temperature compensation
- Two-point calibration with 30-day reminder
- Dual-purpose storage cap and dibber
- Includes pH 4.0, pH 7.0, and KCl storage solution sachets
- 1-year limited manufacturer warranty


