Water Quality Tester, Digital TDS Total Dissolved Solids Meter Pen PH High Accuracy Purity Temp/PPM Testing

【Multifunctional TDS Tester】The TDS meter can be widely used for aquariums, beverages, quality control, fish hatcheries, food processing, laboratories, schools, colleges, swimming pools, etc. 【Test Your Water】Test the impurities in water, such as some elements of soluble salts, ionic organic compounds, heavy metal ions, etc., and provide you and your families much convenience to get cleaner water. 【Accurate and reliable】The TDS measuring principle measures the electrical conductivity of water and indirectly reflects the TDS value. 【Hold Function】Supports hold function, which can save measurement results for easy reading and recording. 【Simple and Fast】Simply turn on the TDS meter and stir the water gently. The stabilized readings will be automatically saved on the LCD screen in seconds. It will automatically shut off after 5 minutes of inactivity to conserve battery life.