General description With the 3-in-1 TDS Tester, pH Tester, and Conductivity Meter, you can easily monitor the water quality of your aquarium, swimming pool, or any water source. This device combines the functionality of a professional pH meter, TDS meter, EC meter, and temperature meter, providing reliable results in seconds without the need for expensive lab tests or professional equipment. Technical specifications High precision titanium alloy probe Automatic calibration function Measures TDS, pH, EC, and temperature Usage Immerse the meter in the water Stir gently and wait for results No calibration or setup required for immediate use