4-in-1 Water Quality Tester Pen
pH • ORP • Hydrogen (H₂) • Temperature
Take your water testing further with the 4-in-1 Water Quality Tester Pen — a versatile digital device designed to give deeper insight into the quality and characteristics of your water.
Beyond basic testing, this advanced pen measures dissolved hydrogen (H₂) and oxidation-reduction potential (ORP) — key indicators often associated with hydrogen water systems and overall water balance.
4 Key Measurements in One Device
This multi-parameter tester measures:
- pH (0.01–14.00)
Indicates acidity or alkalinity of your water - Hydrogen (H₂) (0–2400 ppb)
Measures dissolved hydrogen gas levels - ORP (±999mV)
Indicates oxidation-reduction potential - Temperature (0–60°C)
With automatic temperature compensation (ATC) for improved accuracy
Together, these readings provide a broader understanding of water quality.
Fast, Easy, Real-Time Results
Simply place the probe into water and receive instant readings on the clear, backlit LCD screen.
Ideal for:
- Drinking water testing
- Hydrogen water systems
- Water filtration monitoring
- Aquariums & fish tanks
- Hydroponics
- General water quality checks
Designed for Everyday Use
Lightweight and compact (approx. 90g), this tester is easy to use at home or on the go.
Its IP67 waterproof rating means it can handle everyday use with confidence.
More Than Basic Testing
Unlike standard water testers, this unit provides additional insights:
- Hydrogen levels (H₂) for hydrogen water users
- ORP readings to better understand water characteristics
- Combined metrics for a more complete water profile
Calibration & Accuracy
The tester supports 3-point pH calibration for improved accuracy over time.
- Factory calibrated for convenience
- Recalibration recommended periodically
- Buffer solutions required for calibration
Portable & Convenient
Powered by replaceable button batteries, this pen is:
✔ Lightweight
✔ Easy to carry
✔ Simple to store
✔ Ready whenever you need it
Why Customers Choose It
- More advanced than standard testers
- Measures hydrogen water performance
- Easy-to-read results
- Compact and convenient
- Supports informed water choices
Ideal For
- Health-conscious households
- Hydrogen water users
- Water filter owners
- Aquariums & hydroponics
- Coffee & beverage enthusiasts
- Anyone wanting deeper insight into their water
FAQs – 4-in-1 Water Quality Tester Pen
What does this tester measure?
It measures:
- pH (acidity/alkalinity)
- ORP (oxidation-reduction potential)
- Dissolved hydrogen (H₂)
- Temperature
What is ORP?
ORP (Oxidation-Reduction Potential) measures how water behaves in terms of oxidation.
It provides insight into whether water tends toward oxidation or reduction, which some users monitor when comparing different water types.
What is dissolved hydrogen (H₂)?
Dissolved hydrogen refers to hydrogen gas present in water.
This measurement is commonly used by people testing hydrogen water systems or generators.
How do I use the tester?
- Turn on the device
- Place the probe into the water
- Wait a few seconds
- Read results on the display
Always rinse the probe after use.
Is it waterproof?
Yes. It has an IP67 rating, meaning it is protected against dust and can handle brief immersion in water.
Does it need calibration?
Yes, for best accuracy:
- pH should be calibrated periodically
- Calibration requires buffer solutions
- The unit is typically factory calibrated initially
Can I use it for drinking water?
Yes. It is suitable for testing:
- Tap water
- Filtered water
- Hydrogen water
- Mineral water
What temperature range does it measure?
It measures from 0°C to 60°C, with automatic temperature compensation for more reliable readings.
Why are my readings changing?
Water readings can vary due to:
- Temperature
- Mineral content
- Water source
- Time between tests
This is normal and expected.
Who is this best for?
Ideal for:
- Hydrogen water users
- Health-conscious individuals
- Water filtration users
- Aquariums & hydroponics
- Anyone wanting deeper insight into water quality
