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A Must-Have Tester for RO Systems
The ppm pen is the perfect way for measuring and tracking your water’s levels of TDS to make sure your water filter is doing its job. With this water ppm tester, you won’t just need to take the filter manufacturer’s word that it reduces TDS in your water; you can test it yourself with confidence.

We cannot visually determine the purity of drinking water. Even seemingly clear and transparent water may contain a lot of impurities. That's why it's essential to test your water before drinking it. This water tester detects major impurities including heavy metal ions, ionic organic matter, and soluble salts of calcium and magnesium, ensuring the safety of every sip.

TDS stands for Total Dissolved Solids, which refers to any salt, metal, or mineral dissolved in the water. Lower TDS levels mean your body's cells can use the water more effectively, while higher levels can indicate more contaminants. Monitoring TDS ensures you maintain the highest water quality for your health.

Look no further than MEXYBE’s 2025 ALL-NEW high precision chip, engineered to deliver accurate and reliable performance consistently for every testing session.

The tester uses a highly sensitive titanium alloy probe, ensuring quick and precise detection of contaminants to give you dependable results in seconds.

Featuring a high-definition LED screen with backlight, this meter makes it effortless even for children to clearly read the testing results anytime, anywhere.

MEXYBE’s mission is to provide a simple and affordable solution to test water quality, helping you save money by avoiding unnecessary filter replacements and ensuring safe water.

First, immerse the meter into the water between the upper and lower immersion lines for accurate sampling.

Second, lightly stir the meter to remove any trapped air bubbles, ensuring consistent readings.

Third, wait 5 seconds for the readings to stabilize and for the meter to automatically lock your test result.

Fourth, read your test results clearly on the display and compare with the colorful TDS value chart printed on the back of the meter for guidance.
