Bluelab pH PenPlus – Professional pH meter with replaceable probe

The Bluelab pH PenPlus is designed specifically for professional use in hydroponics, coco substrates, soil cultivation, aquaponics and all systems where precise pH control is crucial. Thanks to the high-quality dual-coupled pH probe, the device provides stable, fast and reliable measurements even with frequent use in nutrient solutions.

The biggest advantage of the PenPlus model is the replaceable pH probe (Bluelab pH ProbePlus) . With standard pH meters, after the electrode wears out, the entire device has to be replaced. With the PenPlus, you only need to replace the probe using the practical screw mechanism, which significantly extends the life of the device and reduces operating costs.

The device measures both pH and temperature , features a bright LCD display with backlight, Hold function to retain readings, automatic shutdown to save battery and a calibration reminder every 30 days. It is certified to the IP68 standard, which means it is completely protected from dust and water and is suitable for use in harsh environments.

Bluelab is one of the most recognizable manufacturers of measuring instruments for professional horticulture, and the PenPlus is designed and manufactured in New Zealand with a focus on long-term reliability and easy maintenance.

Technical characteristics

✔️ Manufacturer: Bluelab

✔️ Model: pH PenPlus

✔️ Type: Portable pH and temperature meter

✔️ pH measurement range: 0.0 – 14.0 pH

✔️ Resolution: 0.1 pH

✔️ Accuracy: ±0.1 pH

✔️ Temperature range: 0 – 50°C

✔️ Temperature units: °C / °F

✔️ Automatic Temperature Compensation (ATC)

✔️ Dual-coupled pH probe

✔️ Replaceable pH/temperature probe

✔️ LCD display with backlight

✔️ Hold function

✔️ Two-point calibration

✔️ Calibration reminder every 30 days

✔️ Automatic shutdown

✔️ IP68 waterproof and dustproof housing

✔️ Power supply: 1 × AAA alkaline battery

✔️ Compatible with Bluelab pH ProbePlus

📦 The set includes

✔️ Bluelab pH PenPlus

✔️ Replaceable pH/temperature probe

✔️ Sachet with calibration solution pH 7.0

✔️ Sachet with pH 4.0 calibration solution

✔️ Sachet with KCl storage solution

✔️ AAA battery

✔️ User manual

Advantages

✔️ Replaceable probe – you only change the electrode, not the entire device

✔️ Extremely accurate and stable measurements

✔️ Measures pH and temperature simultaneously

✔️ Double-bonded probe for longer service life

✔️ Waterproof and dustproof housing (IP68)

✔️ Easy two-point calibration

✔️ Reminder for next calibration

✔️ Compact and convenient for everyday use

✔️ Suitable for both professional growers and hobbyists

✔️ Reduces maintenance costs thanks to the replaceable probe

Application

Suitable for:

• Hydroponic systems

• Soil cultivation

• Coconut substrates

• Aquaponics

• Greenhouses

• Measurement of nutrient solutions

• pH control during irrigation

• Laboratory applications

• Aquaristik

• Professional and amateur plant growing

📋 Method of use

1. Remove the protective cap and rinse the probe with clean water.
2. Immerse the probe in the solution being measured.
3. Wait for the readings to stabilize.
4. If necessary, use the Hold function to hold the value.
5. After completion, rinse the probe and store it with KCl solution in the protective cap.
6. Calibrate the instrument regularly with pH 7.0 and pH 4.0 buffer solutions for maximum accuracy.

💡 Tip from Urban Botaniks: To maximize the life of your pH probe, never store it in distilled water. Use a specialized KCl Storage Solution and calibrate at least once a month or always after a prolonged period of non-use.