Digital pH Meter with ATC – ±0.01 pH Accuracy for Aquariums, Pools, and Drinking Water
Your aquarium water might look clear, but incorrect pH levels can be fatal to fish in just a few hours. Similarly, swimming pool water can appear clean while chemical imbalances irritate your skin and damage your equipment. With this high-precision digital pH meter, you can monitor your water quality with confidence—getting accurate results in just 5 seconds, with no guesswork involved.
Note: This device is designed for measuring the pH of liquids only. It is not suitable for direct use on soil or solid substances without prior sample preparation.
Why choose this model? (Key Benefits):
- Automatic Temperature Compensation (ATC) — The integrated temperature sensor adjusts readings in real-time. Since pH levels fluctuate with temperature, this device automatically calculates the correct value, whether the water is 20°C or 35°C.
- 2-Point Automatic Calibration — The device intelligently recognises pH 4 and pH 7 buffer solutions. Calibration takes less than 2 minutes, with no complicated menus or manuals required.
- ±0.01 pH Accuracy — Enjoy laboratory-grade precision at an affordable price. Get exact readings like 6.85, rather than vague estimates.
- Food-Safe Electrode — The non-toxic electrode is safe for testing drinking water, juices, and other beverages without risk of contamination.
- Portable and Lightweight — Weighing just 48g and measuring 155mm, it fits easily in your pocket. Perfect for use at the pool, by the aquarium, or in the field.
- Complete Ready-to-Use Kit — Includes pH 4 and pH 7 calibration solutions (250 ml each), batteries, and a protective carry case. You are ready to test straight out of the box.
Performance and Specifications
The anti-clogging open-junction glass electrode is designed to maintain sensitivity over repeated use, outperforming cheaper models that lose accuracy within weeks. With a full 0.00–14.00 pH range and a thermal tolerance of 0–80°C, it is versatile enough for everything from cold spring water to warm industrial solutions. The LCD display ensures clear visibility even in low-light conditions, and the battery life is designed to last for months of occasional use or weeks of daily testing.
| Parameter | Specification |
|---|---|
| pH Measurement Range | 0.00 – 14.00 pH |
| Resolution | 0.01 pH |
| Accuracy | ±0.01 pH |
| Temperature Compensation | Automatic (ATC) |
| Temperature Range | 0 – 80°C |
| Calibration | Automatic, 2-point (pH 4 and pH 7) |
| Electrode Type | Glass, anti-clogging open junction |
| Display | LCD |
| Dimensions | 155 × 29 × 16 mm |
| Weight | 48g |
| Power Supply | 2× 1.5V batteries (included) |
| Applications | Aquariums, pools, drinking water, laboratory, food industry, agriculture |
How to Use
- Insert the batteries and switch the device on using the ON button.
- Remove the protective cap from the electrode.
- To calibrate, submerge the electrode in the pH 7 buffer solution, wait for the reading to stabilise, and confirm. Repeat the process with the pH 4 solution.
- Rinse the electrode with distilled water between measurements.
- Insert the electrode into the liquid you wish to test, ensuring it is submerged to the recommended depth.
- Gently stir to remove any air bubbles from the sensor.
- Wait approximately 5 seconds for the reading to stabilise on the display.
- Read the pH value on the LCD screen.
- After use, rinse the electrode, gently wipe it dry, and replace the protective cap.
What’s in the Box
- 1× Digital electronic pH tester
- 1× pH 7 calibration solution – 250 ml
- 1× pH 4 calibration solution – 250 ml
- 2× 1.5V batteries
- 1× Carry case
Frequently Asked Questions
Which liquids can be tested with this pH meter?
Any liquid with a temperature between 0°C and 80°C, including aquarium water, swimming pools, drinking water, beverages, diluted chemical solutions, and plant nutrient solutions. It is not intended for direct measurement in soil or solid materials.
How often should I calibrate?
Calibrate before any important measurement session and at least once a week if used frequently. Calibration takes less than 2 minutes using the included solutions.
Will the 250 ml calibration solutions last a long time?
A standard calibration uses approximately 20–30 ml. Each 250 ml bottle provides enough for 8–12 full calibrations. Store them at room temperature, away from direct sunlight, and check the expiry date on the packaging.
How do I maintain the electrode for longevity?
Rinse with distilled water after every use, wipe gently with a soft cloth, and replace the protective cap. Do not allow the electrode to dry out completely; if you are not using it for an extended period, store it in storage solution or distilled water.
What is ATC and why does it matter?
ATC stands for Automatic Temperature Compensation. The pH of a liquid changes with its temperature. Without ATC, you would get inaccurate readings if the water is too hot or too cold. This device measures temperature simultaneously and automatically corrects the displayed result.
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