TDS Meter, Water Quality Tester Filter Pen, Accuracy Testing for Drinking Water Purity Test, Swimming Pools, Aquariums

Description TDS Meter is a great tool for home and professional use to determine the ppm (parts per million) Ideal for a variety of professional and home uses such as drinking water, hydroponics, aquariums, aquaculture, pool & hot tub, spa, car wash, food & beverage, coffee, kombucha, laboratory & scientific, colloidal silver, ecology testing, laboratory & scientific, and more! Hold function: Saves measurements for convenient reading and recording. Auto-off function: Turns off meter after 10 minutes of non-use to conserve batteries. What is TDS? TDS stands for Total Dissolved Solids, which are the inorganic salts and organic matter in a liquid.   Specifications: Condition: 100% Brand New Range: 0~9990ppm Accuracy: /-2% Precautions: Do not immerse the meter in liquid beyond the maximum immersion level of 4 cm. Do not store meters at high temperatures or in direct sunlight. Please refer below standard for testing water: 0~50ppm ——— High Purity Water 50~100ppm ——— Pure Water 100~300ppm ——— General Pure Water 300~600ppm ——— The water will have incrustation scale 600~1000ppm ——— Bad Taste Water Above 1000ppm ——— The water is not suitable for drinking