Bluelab pH Pen – Digital pH Tester for Nutrient Solutions

The Bluelab pH Pen is a compact digital pH tester for checking nutrient solutions. Monitoring pH helps you maintain conditions that allow plants to access the minerals they need for healthy growth.

With a simple interface, fast readings and an easy-to-read display, this portable tester makes routine checks straightforward. Use it to monitor reservoirs, feed solutions and runoff water in hydroponic, soil and coco growing setups. It measures liquids, rather than being inserted directly into soil or coco.

Key Features

• Accurate digital pH measurement for nutrient solutions.
• Helps you monitor the pH conditions that affect nutrient availability.
• Fast readings and an easy-to-read display for convenient checks.
• Compact, portable design for use around your growing space.
• Suitable for checking liquid feeds used in hydroponic, soil and coco systems.

Ideal For

• Monitoring nutrient solution pH.
• Checking hydroponic reservoirs and irrigation feed solutions.
• Testing feeds and runoff as part of soil and coco feeding routines.
• Gardeners seeking closer control over their nutrient solution.