Bluelab pH Pen Soil – pH Meter for Soil in Culture
Bluelab pH Pen Soil – pH Meter for Soil in Culture
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Rango de medición: 0,0 a 14,0 pH y 0 a 50 °C con resolución 0,1 pH.
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Precisión: ±0,1 pH y ±1 °C a 25 °C con compensación automática de temperatura.
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Electrodo: doble unión integrado, totalmente impermeable, apto para tierra, coco y soluciones.
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Alimentación: 1 pila AAA con apagado automático y función hold para congelar lectura.
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Description
Measuring the pH of the crop does not have to be a complicated task, and Bluelab is clear about that, which is why it has designed this pencil-shaped meter , so that you can have quick and accurate results about the acidity level of your irrigation solution.
Full description
Bluelab Soil pH Pen – Direct pH Meter for Substrate and Solutions
The Bluelab Soil pH Pen is a portable world reference meter that allows you to read the pH and temperature directly on the substrate, without the need to prepare liquid samples. Its double junction electrode is specifically designed to stick into soil, coco coir, potting mixes or nutrient solutions, providing reliable readings right in the root zone.
Direct measurement on substrate: saves time and precision
Unlike conventional meters that require samples to be extracted and prepared in distilled water, the Soil pH Pen It is introduced directly into the culture medium. This reduces manipulation, avoids dilution errors and provides the actual pH data to which the plant's roots have access.
Automatic temperature compensation
The device offers fully temperature compensated readings, which ensures precision even in the face of thermal variations. Shows simultaneously pH and temperature in a single measurement, optimizing the daily control of the crop.
Technical specifications
- pH range: 0.0 to 14.0 pH
- Temperature range: 0 to 50°C
- Resolution: 0.1 pH / 1 °C
- Accuracy at 25°C: ±0.1 pH / ±1°C
- Calibration: 2 points (pH 7.0 and pH 4.0 or pH 10.0)
- Temperature compensation: automatic
- Power: 1 AAA alkaline battery
- Electrode: double junction, integrated
- Resistance: completely waterproof
Advanced Features
Includes freeze reading function (hold) which allows you to capture the value on the screen when measuring in areas that are difficult to see. Your automatic shutdown prolongs battery life, and by being completely waterproof (not only waterproof) can be safely submerged during electrode cleaning.
Applications
Essential for growers in soil, substrate and coconut, as well as for professional horticulturists who need to monitor the pH directly in the growing medium without disturbing the roots. Also compatible with reading in liquid nutrient solutions, which makes it a versatile instrument in any grower's kit.
Bluelab quality and guarantee
Bluelab is a world leader in cultivation instrumentation. The Soil pH Pen maintains the brand's reliability standards with easy calibration and robustness for intensive use.
Warranty
At GrowIndustry we only work with proven quality products and trusted brands.
Every item goes through a check before shipping to make sure it arrives in perfect condition and ready to use.
Your satisfaction is our priority.

Bluelab pH Pen Soil – pH Meter for Soil in Culture
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Desde 39 € en Bronze y sin mínimo en Platinum (hasta 10 kg)
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Extended warranty
Up to 3 years
Frequently asked questions
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It lets you read pH and temperature directly in the substrate, without having to prepare liquid samples. Its double-junction electrode is designed to be inserted into soil, coco fibre or potting mixes. This way you get the actual reading of the root zone, which is what really matters.
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Conventional meters require you to take a sample and prepare it in distilled water, with the risk of dilution errors. Because it's inserted directly into the growing medium, the Soil pH Pen reduces handling and saves you time. The result is the pH that the plant's roots actually experience.
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Yes, it's fully waterproof, not just water-resistant, so it can be submerged safely while cleaning the electrode. This makes maintenance much easier after inserting it into soil or coco. Washing it after every use keeps the readings reliable.
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It covers 0.0 to 14.0 pH and 0 to 50°C, with a resolution of 0.1 pH and 1°C. At 25°C its accuracy is ±0.1 pH and ±1°C, and temperature compensation is automatic. Calibration is done at two points, with pH 7.0 and pH 4.0 or 10.0.
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The hold function locks the reading on the screen, which is very useful when measuring in spots where you can't see the display clearly. You can pull the meter out and read the value comfortably. It also has auto shut-off to extend the life of the AAA alkaline battery.
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It's essential for growing in soil, substrate and coco, but it's also compatible with reading liquid nutrient solutions. That dual capability makes it a very versatile instrument in any grower's kit. It's also perfect for professional horticulturists who need to monitor the medium without disturbing the roots.