Bluelab pH PenPlus Digital pH & Temperature Meter
Take the guesswork out of pH management with the Bluelab pH PenPlus – a premium digital pH and temperature meter designed for growers who demand fast, accurate, and reliable measurements. Featuring a replaceable pH probe, this next-generation meter offers exceptional long-term value by allowing you to replace only the probe instead of the entire unit.
Whether you're growing in hydroponics, coco, soil, or any nutrient solution, maintaining the correct pH is essential for maximum nutrient uptake and healthy plant growth. The Bluelab pH PenPlus provides laboratory-grade accuracy in a compact, waterproof design built for everyday use.
Features
- Measures pH and temperature
- Replaceable pH & temperature probe
- Double-junction probe for improved accuracy and longer lifespan
- Fast and stable readings
- Waterproof and dustproof (IP68 rated)
- Bright backlit LCD display
- Simple 2-point calibration
- 30-day calibration reminder
- Hold function to freeze readings on screen
- Automatic temperature compensation (ATC)
- Auto power-off to conserve battery
- Displays temperature in °C or °F
- Compact, lightweight and easy to carry
Technical Specifications
| Specification | Value |
|---|---|
| pH Range | 0.0 – 14.0 pH |
| Resolution | 0.1 pH |
| Accuracy | ±0.1 pH |
| Temperature Range | 0–50°C (32–122°F) |
| Temperature Resolution | 1°C / 1°F |
| Temperature Accuracy | ±1°C |
| Waterproof Rating | IP68 |
| Power | 1 × AAA Battery |
What's Included
- 1 × Bluelab pH PenPlus
- Replaceable pH & Temperature Probe
- pH 7.0 Calibration Solution (Single Use)
- pH 4.0 Calibration Solution (Single Use)
- KCl Storage Solution
- Quick Start Guide
Why Choose the Bluelab pH PenPlus?
Unlike traditional pH pens that require complete replacement when the probe wears out, the Bluelab pH PenPlus allows you to simply replace the probe, reducing long-term costs and downtime. Its rugged waterproof construction, reliable double-junction sensor, and automatic temperature compensation make it one of the most trusted handheld pH meters available.
Ideal for:
- Hydroponic systems
- Coco growing
- Soil cultivation
- Reservoir testing
- Nutrient solution monitoring
- Water quality testing
Keep Your Plants Performing at Their Best
Maintaining the correct pH is one of the most important factors in successful growing. The Bluelab pH PenPlus gives you the confidence to make accurate nutrient adjustments, helping your plants absorb nutrients efficiently and achieve healthier growth and bigger yields.
Homegro Depot recommends calibrating your meter regularly using Bluelab pH 4.0 and pH 7.0 calibration solutions and storing the probe in KCl Storage Solution to maximise probe life and maintain measurement accuracy.