Bluelab pH Soil Pen - Waterproof Digital pH Meter

Professional pH Testing for Soil and Growing Media

The Bluelab pH Soil Pen is a rugged, fully waterproof digital pH meter designed specifically for growers. Get accurate pH and temperature readings in soil, coco coir, potting mixes, and nutrient solutions with this versatile, professional-grade pen.

Why Choose the Bluelab pH Soil Pen

• Fully Waterproof: Not just water resistant - built to withstand deep-water plunges and harsh grow room conditions
• Versatile Testing: Works in soil, coco coir, potting mixes, and water/nutrient solutions
• Accurate Readings: Measures in 0.1 pH increments with automatic temperature compensation
• Easy Calibration: Simple two-point calibration for increased accuracy
• Hold Function: Capture and lock measurements for easy recording
• Auto-Off: Extends battery life automatically
• Ready to Use: Includes 1 AAA battery - power on and start testing immediately
• Built Tough: Made in New Zealand for real growing environments, not labs
• Industry-Leading Warranty: One-year warranty for peace of mind

Why pH Matters

Maintaining proper pH is critical for nutrient availability. If your growing medium is too acidic or alkaline, plants can't absorb nutrients even if they're present. The Bluelab pH Soil Pen helps you dial in the perfect pH range for optimal nutrient uptake and vigorous growth.

Specifications: 0.1 pH resolution, automatic temperature compensation, fully waterproof, works in soil/coco/solution, includes AAA battery, 1-year warranty