The Bluelab Soil pH Pen gives growers fast and accurate insight into their root zone conditions. This portable tool measures both soil pH and temperature directly, ensuring your plants receive the perfect environment for nutrient uptake. Designed for soil, coco coir, rockwool, or nutrient solutions, it removes the need for time-consuming soil slurries.

With its rugged, waterproof body and easy-to-read backlit display, this handheld device makes regular soil testing simple and precise. Whether you’re growing in pots or hydroponics, consistent pH management helps prevent nutrient lockout and promotes vibrant plant growth.

Features
• Measures pH and temperature directly in soil or growing media
• Dual-purpose storage cap acts as a dibber for root zone testing
• Compact handheld design with bright backlit display
• Durable double-junction pH probe for accuracy and longevity
• Simple two-point calibration with 30-day calibration reminder
• Waterproof and easy to clean for reliable performance

Suggested Uses
• Ideal for gardeners, hydroponic growers, and farmers
• Use to monitor pH balance in soil, coco coir, and nutrient solutions
• Perfect for maintaining healthy root environments and maximising plant yield

How to Use

1. Turn on the pen and select pH mode.

2. Insert the probe directly into moist soil or nutrient solution.

3. Wait for the reading to stabilise.

4. Rinse the probe with clean water after each use and store in the KCl-filled cap to maintain accuracy.