High AccuracyWith the titanium alloy probe and the latest sensors, you can get nearly exact measurements every time. Plus, the meter can easily be recalibrated if needed to increase accuracy. Easy to UseSimply immerse yourself in the meter, stir, and get your results in seconds . No calibration or setup required, you can use it right away. Save MoneyInstead of getting involved in expensive lab test or professional equipment, you can get reliable results at home. Simple and immediateProfessional pH meter, TDS meter, EC meter and temperature meter 4 in 1. You can know the water quality in seconds. With calibration function to ensure the measurement accuracy. Suitable forCheck the TDS or EC of your aquarium, swimming pool or water source. You can determine the efficiency of your RO, DI or distillation system, check the nutrient content of your hydroponic setup and much more.