Get accurate, instant pH readings anywhere with this portable digital pH meter pen — a high-precision testing tool designed for hydroponics, aquariums, drinking water, soil testing, swimming pools, and more.
High Precision, Easy to Read Featuring a clear LCD display and ±0.1 pH accuracy, this meter gives you reliable readings across the full 0–14 pH range — from highly acidic (gastric acid, lemon juice) to highly alkaline (bleach, soapy water). The compact pen-style design fits in your pocket, making it ideal for on-the-go testing in gardens, labs, or kitchens.
Simple 2-Point Calibration Calibrate in minutes using standard buffer solutions (pH 4.00, 6.86, and 9.18) for maximum accuracy. The dedicated CAL button makes recalibration quick and straightforward — no technical expertise required.
How to Calibrate:
- Turn on the pH meter
- Dissolve buffer solution in 250ml distilled water
- Immerse electrode in pH 6.86 solution and press CAL for 5 seconds
- Rinse electrode with distilled water, then immerse in pH 4.00 solution
- Press CAL again for 5 seconds and wait for reading to stabilize
- Rinse and dry — your meter is ready to use
Wide Range of Applications
- Hydroponics — monitor nutrient solution pH for optimal plant uptake
- Aquariums — maintain safe water pH for fish and aquatic plants
- Drinking water — verify water quality at home
- Swimming pools & spas — keep water balanced and safe
- Soil testing — check soil acidity for garden and farm use
- ☕ Food & beverage — test coffee, juice, kombucha, and more
Specifications
- pH Range: 0.00–14.00
- Accuracy: ±0.1 pH
- Resolution: 0.01 pH
- Dimensions: 155 × 31 × 17 mm
- Display: LCD
- Calibration: 2-point (pH 4.00, 6.86, 9.18)
- Power: Button cell battery (included)
What's in the Box
- 1 × Digital pH Meter Pen
- 1 × Protective cap
- 1 × Battery
- 1 × User manual
