2-in-1 pH & Salinity Water Tester for Aquarium & Pool
2-in-1 pH & Salinity Water Tester for Aquarium & Pool
2-in-1 pH & Salinity Water Quality Monitor — Aquarium, Pool & Hydroponics
Keep your aquarium, swimming pool, hydroponic garden, or reef tank in perfect balance with this portable 2-in-1 pH and Salinity Water Quality Tester. Featuring continuous real-time monitoring on a clear, easy-to-read LCD display, the PH-2685 lets you track both pH levels (0.00–14.00 pH) and salinity (0.00–199.9 ppt) simultaneously — all in a compact, lightweight unit that fits in the palm of your hand.
Whether you're maintaining a saltwater reef tank, freshwater aquarium, backyard swimming pool, or a thriving hydroponics setup, accurate water chemistry readings are essential. This tester delivers ±0.1 measurement accuracy so you can make confident adjustments every time.
Made in Mainland China.
Key Features
- Dual Measurement: Simultaneously monitors pH (0.00–14.00) and salinity (0.00–199.9 ppt) in one compact device.
- Continuous Real-Time Display: Large, backlit LCD screen shows both readings at a glance — no toggling required.
- Wide Application: Ideal for saltwater & freshwater aquariums, reef tanks, swimming pools, hydroponics, and gardening.
- High Accuracy: ±0.1 measurement accuracy for reliable, consistent water quality data.
- Wide Operating Range: Functions reliably between 0°C and 50°C (32°F–122°F).
- Portable & Lightweight: Compact 88×55×22 mm body weighing just 135 g — easy to carry and install.
- Easy to Use: Simple setup with straightforward controls — no technical expertise required.
- DC 6V Power: Stable power supply for consistent performance.
Specifications
| Model | PH-2685 |
| pH Measuring Range | 0.00 – 14.00 pH |
| Salinity Measuring Range | 0.00 – 199.9 ppt |
| Measurement Accuracy | ±0.1 |
| Operating Temperature | 0–50°C (32–122°F) |
| Power | DC 6V |
| Dimensions | 88 × 55 × 22 mm |
| Weight | 135 g |
| Origin | Mainland China |
Who Is This For?
This monitor is perfect for hobbyist and professional aquarists managing reef or marine tanks, pool owners who want quick water quality checks, and hydroponic growers who need to maintain optimal nutrient uptake by monitoring pH levels closely. It's also great for ornamental pond enthusiasts and anyone growing plants in water-based systems.
For more information on water quality standards and best practices for aquatic environments, visit the EPA Water Quality Criteria page.
Frequently Asked Questions
Q: What water types can this 2-in-1 pH and salinity tester be used with?
A: The PH-2685 water quality tester is versatile and works with saltwater aquariums, freshwater fish tanks, reef tanks, swimming pools, hydroponic systems, and ornamental garden ponds. Its wide salinity range (0.00–199.9 ppt) covers everything from fresh to full seawater.
Q: How accurate is the pH and salinity reading on this monitor?
A: This portable aquarium monitor provides a measurement accuracy of ±0.1 for both pH and salinity readings, making it dependable for everyday water quality monitoring in home and professional settings.
Q: Does this water tester display pH and salinity at the same time?
A: Yes! The PH-2685 features a continuous monitoring LCD display that shows both pH and salinity values simultaneously — no switching between modes required, giving you a complete picture of your water quality at a glance.
Q: What is the operating temperature range for this water quality tester?
A: The monitor operates reliably between 0°C and 50°C (32°F to 122°F), making it suitable for use in most indoor and outdoor aquatic environments throughout the year.
Q: Is this device easy to set up and use?
A: Absolutely. The PH-2685 is designed for ease of use — it's compact (88×55×22 mm, 135 g), simple to install, and requires no advanced technical knowledge. It's ready to use right out of the box, ideal for beginners and experienced aquarists alike.