Bluelab Soil pH Pen: Accurate Soil pH and Temperature Measurements

Introducing the Bluelab Soil pH Pen, a reliable and durable handheld device for measuring soil pH and temperature with ease. No matter the growing medium or environment, the Bluelab Soil pH Pen is designed to provide accurate readings, helping you grow healthy and thriving plants.

Features and Benefits

  • Wide range of applications: Effective in various growing media such as soil, coco coir, potting mixes, and water/solution
  • Fully waterproof: Designed to withstand water exposure and equipped to handle the rigours of everyday growing
  • One-year warranty: Industry-leading one-year limited written warranty for peace of mind
  • Hold reading function: Easily capture measurements with the convenient hold reading feature
  • Simple calibration: Two-point calibration process ensures increased accuracy
  • Energy-saving auto-off: Automatically powers off to extend the life of the included AAA alkaline battery
  • Automatic temperature compensation: Provides accurate readings in various conditions and environments

How to Use

  1. Insert a AAA alkaline battery into the Bluelab Soil pH Pen and power it on.
  2. Before first use, ensure the pen is calibrated using the simple two-point calibration process.
  3. Insert the probe end of the pen into the desired growing medium or solution.
  4. Allow the pen to stabilise and provide an accurate pH and temperature reading.
  5. Use the hold reading function to capture the measurement.
  6. Adjust your growing conditions as needed based on the gathered data for optimal plant growth.
  7. Maintain regular calibration to ensure continued accuracy in readings.

Aqua Gardening Suggests These are Best For

The Bluelab Soil pH Pen is perfect for gardeners, growers, and horticulturists seeking a reliable and precise method for measuring soil pH and temperature. Its robust and waterproof design makes it suitable for a wide range of growing media and environments, making it an ideal tool for achieving optimal plant health and growth.


How does the Bluelab Soil pH Pen work in different types of growing media?

The Bluelab Soil pH Pen is versatile and can be used in various growing media such as soil, coco coir, potting mixes, and solutions. It provides accurate pH and temperature measurements in all of these media.

Is the Bluelab Soil pH Pen water-resistant or waterproof?

The Bluelab Soil pH Pen is fully waterproof, making it suitable for use in different environments without worrying about damage from moisture or water exposure.

What is the warranty on the Bluelab Soil pH Pen?

The Bluelab Soil pH Pen comes with a 1-year limited written warranty. You will need to provide proof of purchase when making a warranty claim.

How does the Bluelab Soil pH Pen help with nutrient availability for plants?

The pH of your growing medium affects how soluble your nutrients are and how easily they can be absorbed by your plants. By measuring the pH and maintaining it within the optimal range, the Bluelab Soil pH Pen ensures that your plants can access all the nutrients they need for healthy growth.

What are the additional features of the Bluelab Soil pH Pen that make it user-friendly?

The Bluelab Soil pH Pen has several useful features, including a hold reading function for capturing measurements easily, simple two-point calibration for increased accuracy, auto-off function to extend battery life, and automatic temperature compensation to provide accurate readings everywhere.

Can the Bluelab Soil pH Pen be used in conjunction with other devices for better results?

Yes, the Bluelab Soil pH Pen can be paired with the Bluelab Pulse Meter to create the ultimate root zone toolkit. The Pulse Meter helps you measure conductivity, moisture, and temperature, allowing you to ensure that your plants are not over- or under-fed and optimizing nutrient usage.

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Product Manual

View PDF brochure for Bluelab Soil pH Pen


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