Bluelab Soil pH Pen – Digital Soil pH & Temperature Meter - New Zealand

Measure soil pH directly at the root zone for healthier plants and better growing results.

The Bluelab Soil pH Pen is a professional-quality, handheld digital tester designed to accurately measure pH and temperature directly in soil, potting mixes, coco coir, rockwool and other growing substrates. It can also be used to test nutrient solutions.

Understanding your growing medium's pH is essential for healthy plant development. Incorrect pH levels can restrict nutrient availability, affecting plant growth and overall performance.

With its specially designed tapered-tip probe, the Bluelab Soil pH Pen makes checking root-zone conditions quick and convenient without the need to prepare soil slurry samples.

Whether you're a home gardener, nursery operator, horticultural professional or hydroponic grower, this reliable testing tool helps you make informed decisions about soil management and nutrient availability.

Key Features & Benefits

• Direct soil pH measurement – Test pH directly in soil and growing media without preparing slurry samples.

• Measures pH and temperature – Monitor two important growing conditions using one compact device.

• Tapered-tip probe – Designed for easier penetration and effective contact with the root zone.

• Versatile applications – Suitable for soil, potting mixes, coco coir, rockwool, growing substrates and nutrient solutions.

• Accurate digital readings – pH accuracy of ±0.1 with 0.1 pH resolution.

• Automatic Temperature Compensation (ATC) – Helps maintain reliable pH measurements across operating temperatures.

• Backlit LCD display – Clear readings with a convenient hold function.

• Simple two-point calibration – Easy calibration for ongoing measurement accuracy.

• Waterproof design – Built for everyday growing environments.

• Automatic power-off – Helps conserve battery life.

• Protective storage cap – KCl storage solution helps keep the pH sensor hydrated between uses.

Ideal For

• Home gardening and vegetable gardens

• Commercial nurseries and plant propagation

• Horticulture and greenhouse production

• Hydroponics and indoor growing

• Coco coir and rockwool cultivation

• Potting mix and container-grown plants

• Professional growers and garden enthusiasts

Technical Specifications

What's Included

• 1 × Bluelab Soil pH Pen

• 1 × pH 7.0 Calibration Solution Sachet (18 mL)

• 1 × pH 4.0 Calibration Solution Sachet (18 mL)

• 1 × KCl Storage Solution Sachet (18 mL)

• 1 × KCl-Keep Plug

• 1 × AAA Alkaline Battery

• 1 × Getting Started Guide

Important Usage & Care Information

For accurate readings, the soil or growing substrate must contain sufficient moisture. When testing dry soil, add a small amount of distilled or deionised water and allow it to absorb before taking measurements.

Always keep the pH sensor properly hydrated using the recommended KCl storage solution, and calibrate as instructed by Bluelab.

Take the guesswork out of soil pH management with the Bluelab Soil pH Pen – a practical testing tool for confident growing.