A TDS meter is a cost-effective andconvenient digital tool to instantly check your overall water quality, offeringmuch convenience for you and your families to get a more clean water.Features:TDS meter measuring principle is to measurethe electrical conductivity of water and indirectly reflects the TDS value.Test the impurities in water such as someelements of soluble salts, ionic organic compound, heavy metal ion, etc,offering much convenience for you and your families to get a more clean water.It supports hold function that can savemeasurement results for easy reading and record.Automatic power-off function allows it topower off after 5 minutes without any operation in order to save power.The TDS meter can be widely used foraquarium, beverages, quality control, fish hatcheries, food processing,laboratory, schools, colleges, swimming pools, etc.How to Use:1. Take down the protective cap and pressthe ON/OFF button for turning on.2. Put it into the ready to test solution, andthe solution height should not exceed 4cm (from the probe end to start)3. Stirring the measuring probe in thesolution to be tested gently for stable data reading.4. After use, please wipe and dry the probewith cloth, and put on the protective cover for storage.Specifications:TDS Range: 0-9990ppmTemperature Range: 0-99Accuracy: 2%Battery Type: 2 * 1.5V LR44 ButtonBatteries(Not included)Size: Approx. 15.5*3*1.8cm/6.1*1.18*0.71inWeight: Approx. 70gPackage Included:1 * TDS TesterNote:1.TDS (Total Dissolved Solids) is a measureof the combined content of all inorganic and organic substances contained in aliquid in molecular, ionized or micro-granular (colloidal sol) suspended form.2.TDS measurements will influenced bytemperature, therefore for temperature compensation to correct readings, pleasepress the "hold" button for fixed numerical value in a few minutes.3.The numerical value of TDS is biggermeans the more water dissolve solids and the numerical value of TDS is smaller meansthe less water dissolve solids. Less the total dissolve solids, more purifyingwater for you.Our products are made with the highest quality materials and are designed to provide you with the best possible user experience. We strive to ship out all orders within three days of purchase, and the estimated delivery time is 8-15 days.When shopping, please pay attention to the size and dimensions of the product to ensure that it meets your needs. In the title and , we have provided detailed information about the product, including its features and specificationsWe want you to be completely satisfied with your purchase, so if you have any questions or concerns, please don''''t hesitate to contact us. We are here to help and will do our best to assist you.Thank you for choosing our product. We hope you enjoy it