What Is the Bluelab pH PenPlus?
The Bluelab pH PenPlus is a professional-grade, IP68-rated waterproof pH and temperature meter designed for growers, aquarists, food producers, and water quality professionals who demand accuracy and durability. With its replaceable probe design, it offers long-term value without sacrificing precision.
Key Features
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IP68 Waterproof Rating – Fully submersible and built to withstand demanding environments.
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Replaceable Probe – Extend the life of your meter by simply replacing the probe instead of the entire unit.
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Dual Measurement – Measures both pH and temperature simultaneously.
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High Accuracy – ±0.1 pH accuracy for reliable, repeatable results.
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Easy Calibration – Simple 2-point calibration for consistent performance.
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Compact & Portable – Pen-style form factor fits easily in a pocket or tool kit.
Who Is It For?
The Bluelab pH PenPlus is ideal for:
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Hydroponic growers monitoring nutrient solution pH
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Aquarists maintaining healthy tank water
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Food & dairy producers ensuring product quality
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Water treatment professionals testing source and treated water
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Home users checking drinking water quality
Why the Replaceable Probe Matters
pH probes degrade over time — it's unavoidable. Most pen meters require you to replace the entire unit when the probe fails. The Bluelab pH PenPlus solves this with a user-replaceable probe, saving you money and reducing waste. Simply swap the probe and you're back to factory-fresh accuracy.
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Calibrate using the included pH 4.0 and 7.0 calibration solutions.
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Rinse the probe with clean water before each use.
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Submerge the probe tip in your sample and wait for the reading to stabilize.
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Record your pH and temperature readings.
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Rinse and store the probe in storage solution to maintain longevity.
Maintenance Tips
- Always store the probe in KCl storage solution — never dry storage.
- Calibrate regularly, especially with frequent use.
- Replace the probe when readings become inconsistent or slow to stabilize.
- Clean the probe with a soft cloth; avoid abrasive materials.
Final Verdict
The Bluelab pH PenPlus is a premium investment for anyone serious about water quality. Its IP68 waterproofing, replaceable probe, and dual pH/temperature measurement make it one of the most versatile and cost-effective pH meters on the market. Whether you're a professional grower or a home enthusiast, this meter delivers lab-grade accuracy in a rugged, portable package.
Ready to upgrade your water testing? Get the Bluelab pH PenPlus today and experience the difference precision makes.
