Portable Digital PH Meter Pen 0-14pH Water PH Tester

Know Your Water. Instantly.

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.