A TDS meter is a cost-effective and convenient digital tool to instantly check overall water quality, offering convenience for monitoring water purity. Features: - The TDS meter measures the electrical conductivity of water to indirectly reflect the TDS value. - Tests impurities in water such as soluble salts, ionic organic compounds, and ions. - Features a hold function to save measurement results for easy reading and recording. - Automatic power-off function turns the device off after 5 minutes of inactivity to conserve battery life. - Suitable for use in aquariums, beverages, quality control, fish hatcheries, food processing, laboratories, schools, colleges, and swimming pools. How to Use: 1. Remove the protective cap and press the ON/OFF button to turn on the device. 2. Immerse the probe into the solution to be tested, ensuring the liquid level does not exceed 4 cm from the probe tip. 3. Gently stir the probe in the solution until a stable reading appears. 4. After use, wipe the probe dry with a cloth and replace the protective cap for storage. Specifications: - TDS Range: 0–9990 ppm - Temperature Range: 0–99°C - Accuracy: ±2% - Battery Type: 2 x 1.5V LR44 button batteries (not included) - Size: Approx. 15.5 x 3 x 1.8 cm (6.1 x 1.18 x 0.71 in) - Weight: Approx. 70g Package Included: 1 x TDS Tester Notes: - TDS (Total Dissolved Solids) measures the total concentration of dissolved substances in water, including inorganic salts and small amounts of organic matter. - TDS readings are affected by temperature. For accurate results, allow the device to stabilize in the solution and press the hold button to lock the reading once stable. - A higher TDS value indicates more dissolved solids in the water, while a lower value indicates fewer dissolved solids and generally purer water.