4-in-1 Water Quality Tester – pH TDS EC Temperature Meter

4-in-1 Digital Water Quality Tester with Backlit LCD

Get a complete picture of your water quality in seconds with this versatile 4-in-1 Digital Water Quality Tester. Measuring pH, TDS (Total Dissolved Solids), EC (Electrical Conductivity), and Temperature simultaneously, this compact meter is perfect for homeowners, aquarium enthusiasts, pool owners, and anyone who cares about the water they drink or maintain.

Why Monitor Your Water Quality?

Water quality directly impacts the health of your fish, the clarity of your pool, the performance of your hydroponic garden, and the purity of your drinking water. The U.S. Environmental Protection Agency (EPA) recommends regular water testing as a key step in ensuring safe, clean water for household and recreational use.

Key Features

• 4 Measurements in 1 Device: Instantly reads pH, TDS, EC, and Temperature — no need for multiple testers.
• Backlit LCD Display: Large, easy-to-read screen with backlight for clear readings in any lighting condition.
• Wide Application: Ideal for home drinking water, swimming pools, aquariums, fish tanks, hydroponics, and more.
• Compact & Portable: Slim pen-style design fits easily in your pocket or toolkit for on-the-go testing.
• Fast & Accurate Results: Advanced sensor technology delivers stable, reliable readings within seconds.
• Simple One-Button Operation: Intuitive controls make it easy for beginners and professionals alike.
• Durable Construction: Waterproof housing protects the meter from splashes and submersion during use.

Measurement Specifications

• pH Range: 0.00 – 14.00 pH
• TDS Range: 0 – 9990 ppm
• EC Range: 0 – 9990 µS/cm
• Temperature Range: 0°C – 80°C (32°F – 176°F)

Perfect For

• 🏠 Home Drinking Water — Verify tap or filtered water purity
• 🐠 Aquariums & Fish Tanks — Maintain optimal water conditions for your aquatic life
• 🏊 Swimming Pools & Spas — Monitor chemical balance effortlessly
• 🌿 Hydroponics & Gardening — Track nutrient levels for healthy plant growth
• 🍵 Coffee & Tea Brewing — Dial in the perfect water for your best brew

What's in the Box

• 1 × 4-in-1 Digital Water Quality Tester
• 1 × User Manual
• Note: Battery not included.

Made in China.

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Frequently Asked Questions

Q: What parameters does this 4-in-1 water quality tester measure?

A: This digital water tester measures four key water quality parameters simultaneously: pH (acidity/alkalinity), TDS (Total Dissolved Solids in ppm), EC (Electrical Conductivity in µS/cm), and Water Temperature in both Celsius and Fahrenheit.

Q: Is this water quality tester suitable for use in an aquarium or fish tank?

A: Yes! This tester is specifically designed for aquarium and fish tank use. Monitoring pH, TDS, EC, and temperature helps you maintain a safe and stable aquatic environment for your fish and other aquatic life.

Q: Does the water quality meter come with batteries?

A: Batteries are not included with this tester. Please check the user manual for the specific battery type required before first use.

Q: How do I read the results on the LCD display?

A: Simply submerge the probe end into the water sample and press the button. The large backlit LCD screen will display all four readings clearly — even in dim lighting — within a few seconds.

Q: Can I use this tester for pool water testing?

A: Absolutely. This 4-in-1 meter is ideal for swimming pool and spa water testing. Regular pH and EC monitoring helps you keep pool chemistry balanced for a safe and enjoyable swim experience.