Portable & Accurate pH Measurement for Water, Lab, Hydroponics

This Digital pH Pen Tester is the perfect tool for quick, accurate pH readings on the go. Designed with a 0.01pH resolution, it offers auto calibration, a compact pen-style design, and is ideal for use in aquariums, labs, drinking water, pools, and hydroponic systems.

Key Features

✅ Wide Measuring Range (0.00–14.00 pH)
Covers all general water testing applications.

✅ Automatic Calibration
Calibrate easily with a single button using included pH 4.00, 6.86, and 9.18 buffer powders.

✅ High Accuracy & Fast Reading
±0.05pH accuracy and quick response time on LCD digital screen.

✅ Pocket-Size & Portable
Only 155mm long — easily fits in a bag or lab coat pocket.

✅ Versatile Use Cases
Perfect for drinking water, aquariums, food & beverage processing, hydroponics, labs, pools, and school experiments.

Specifications

• Display: Digital LCD
• Measurement Range: 0.00 – 14.00 pH
• Resolution: 0.01 pH
• Accuracy: ±0.05 pH
• Operating Temp: 0°C to 60°C
• Electrode Type: Precision glass bulb
• Power Supply: 2× LR44 batteries
• Size: 155×30×14mm

Package Includes

• 1× Digital pH Meter
• 3× Calibration Buffer Powders (pH 4.00 / 6.86 / 9.18)
• 1× User Manual

How to Use

1. Remove cap and rinse electrode with distilled water.
2. Press ON/OFF, immerse electrode in sample solution.
3. Wait for ~30 seconds for stable reading.
4. Rinse and dry electrode after use, replace cap.

Calibration Steps

1. Clean electrode, place in pH 6.86 buffer solution. Press CAL.
2. Repeat with pH 4.00 and pH 9.18 buffers for full-range accuracy.

🧪 Tip: Always recalibrate after extended periods of disuse or if accuracy drops.

Maintenance Notes

• Store with cap on to prevent drying.
• If dry, soak electrode in distilled water for a few hours.