The Ninety Portable Digital PH Meter Pen gives you precise, real-time pH readings of your tap water, filtered water, or any liquid — right at your fingertips. Compact, accurate, and built for everyday use at home.
Key Features
Wide measurement range: 0–14 pH, covering everything from highly acidic to highly alkaline water
High accuracy: ±0.1 pH resolution for reliable readings every time
Digital LCD display: Clear, easy-to-read results in seconds
Automatic Temperature Compensation (ATC): Ensures accurate readings regardless of water temperature
One-button operation: Simple and intuitive — no expertise required
Portable pen design: Lightweight and pocket-sized, ideal for home, travel, or outdoor use
Replaceable electrode: Long-lasting and easy to maintain
Technical Specifications
Measurement range: 0.00 – 14.00 pH
Accuracy: ±0.1 pH
Resolution: 0.01 pH
Temperature compensation: 0–50°C (automatic)
Power: 2 × 1.5V LR44 button batteries (included)
Dimensions: approx. 155 × 28 × 18 mm
What's in the Box
1 × Digital PH Meter Pen
2 × Calibration buffer sachets (pH 4.0 and pH 7.0)
1 × Protective cap
2 × LR44 batteries
1 × User manual
Perfect for monitoring drinking water quality, aquariums, hydroponics, swimming pools, and more.
