Bluelab Soil pH Pen – Direct pH & Temperature Testing for Soil & Coco

The Bluelab Soil pH Pen measures pH and temperature directly in soil, coco coir, potting mixes and nutrient solutions. This handheld tester helps you check conditions around your plants' roots without relying on guesswork.

Practical readings where you need them

A backlit LCD makes readings easier to see, while the hold function lets you retain a reading after removing the pen. Automatic temperature compensation supports pH measurement as sample temperature changes, and a calibration indicator shows successful pH calibration.

Key features

• Measures both pH and temperature.
• Suitable for soil, coco, potting mixes and nutrient solutions.
• Backlit LCD and hold-reading function.
• Integrated storage cap with dibber.
• Successful pH calibration indicator.
• Waterproof construction.

Listed measurement specifications

• pH display increments: 0.1 pH.
• pH accuracy: ±0.1 pH.
• Temperature accuracy: ±1°C / ±2°F.
• Automatic temperature compensation.

Care and use

Follow the Bluelab instructions for preparing the growing medium, using the dibber and taking measurements. Do not force the probe into compacted material. Clean, calibrate and store the probe as directed, using the recommended care solutions. Measurement accuracy depends on correct calibration, probe condition and sampling technique.

Warranty

The existing listing specifies a one-year repair or replacement guarantee. Refer to the manufacturer's current terms for eligibility and exclusions.