Digital pH Meter & TDS Water Tester | 0–14 pH, Auto Calibration

Know Exactly What's in Your Water — Instantly

Whether you're monitoring your home drinking water, maintaining a thriving aquarium, or keeping your swimming pool balanced, the Digital pH & TDS Water Quality Tester gives you fast, accurate readings at the touch of a button. With a precise 0.01 pH resolution across the full 0–14 pH range, this pocket-sized device takes the guesswork out of water quality testing.

Key Features

• Wide pH Range: Measures 0–14 pH with ±0.01 resolution for highly accurate readings
• Automatic Calibration: Supports 2-point and 3-point automatic calibration for reliable, consistent results every time
• TDS Testing: Measures Total Dissolved Solids to give you a comprehensive picture of your water quality
• Digital Display: Clear, easy-to-read digital screen shows readings instantly
• Lightweight & Portable: Compact plastic body weighing just 110g — perfect for home, poolside, or aquarium use
• Multiple Uses: Ideal for household drinking water, fish tanks, hydroponic systems, swimming pools, spas, and more
• Available in Multiple Colors: Yellow, Blue, or Orange

Specifications

• Measurement Range: 0–14 pH
• Resolution: 0.01 pH
• Calibration: 2-point or 3-point automatic calibration
• Material: Plastic
• Weight: 110g
• Colors Available: Yellow / Blue / Orange
• Battery: Not included
• Country of Origin: Made in Mainland China

Who Is This For?

This versatile tester is a must-have for hobbyist aquarium keepers who need stable water conditions for fish and plants, homeowners who want to verify their tap or filtered water quality, and pool owners who need to keep chemical levels safe and balanced. It's also a great tool for hydroponic gardeners, science educators, and anyone who wants peace of mind about the water they use every day.

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Learn More About Water Quality

For detailed information on drinking water quality and safety standards, visit the U.S. Environmental Protection Agency (EPA) – Drinking Water Resources. For aquarium water quality guidance, the USGS Water Science School – pH and Water is an excellent reference.

Frequently Asked Questions

Q: What does this digital pH meter measure?

A: This digital water quality tester measures pH levels across the full 0–14 scale with 0.01 resolution, as well as TDS (Total Dissolved Solids), giving you a comprehensive look at your water's chemical balance. It's suitable for aquariums, swimming pools, household tap water, and more.

Q: How do I calibrate the pH meter?

A: The tester supports both 2-point and 3-point automatic calibration. Simply use the included calibration process with standard buffer solutions to set accurate reference points. Automatic calibration makes it easy to maintain accuracy over time with minimal effort.

Q: Does the pH meter come with batteries?

A: No, batteries are not included. Please check the product or packaging for the required battery type before first use.

Q: Is this tester suitable for aquarium use?

A: Yes! This tester is an excellent tool for aquarium enthusiasts. Maintaining the right pH level is critical for fish health and plant growth. The precise 0.01 resolution makes it easy to spot even small fluctuations in your tank's water chemistry.

Q: Can I use it for my swimming pool?

A: Absolutely. The 0–14 pH range covers all typical pool water pH levels. Regular testing helps ensure your pool's chemical balance stays within the ideal range for safe, comfortable swimming.