Key benefits Multiparameter water quality measurement in one device. TDS, EC, SG and pH are available to assess water suitability for drinking, aquaculture, hydroponics and general use. Broad measurement ranges for versatile applications. TDS 09990 ppm; EC 019990 μS/cm (019.99 mS/cm); SG 1.0001.400; pH 0.0014.00. Healthoriented guidance. Water quality is closely related to health, and good water quality can delay aging. Clear, straightforward readings for quick decision making. Helps you determine when filtration, dilution or adjustment is needed. What this device measures and how it helps TDS: 09990 ppm. TDS represents the total dissolved solids in water; 1 liter of water contains up to 9990 mg of dissolved solids. Use this to assess filtration effectiveness, taste and suitability for drinking or cooking. EC: 019990 μS/cm (019.99 mS/cm). Electrical conductivity indicates the concentration of dissolved ions; useful for evaluating overall water quality and nutrient concentration in various contexts. SG: 1.0001.400. Specific gravity reflects salinity levels typical of seawater and brackish environments; helpful for marine and freshwater applications where salinity matters. pH: 0.0014.00. Measures how acidic or basic the water is; pH balance can directly affect health and the suitability of water for different uses. Health context statement. The acidbase reaction of pH is related to body health, and pH measurement can help maintain balance. Specifications TDS range: 09990 ppm; interpretation note: 1 liter of water contains up to 9990 mg of dissolved solids. EC range: 019990 μS/cm (019.99 mS/cm). SG range: 1.0001.400. pH range: 0.0014.00. Use scenarios Home drinking and cooking water quality monitoring. Quickly check tap, filtered or bottled water to ensure acceptable TDS and pH levels for everyday use and safety. Aquaculture and marine setups. Monitor SG to maintain appropriate salinity for fish and invertebrates; track EC to gauge overall ion content and adjust salinity within safe ranges. Hydroponics and nutrient solutions. Use EC and TDS readings to maintain proper nutrient strength; monitor pH to ensure nutrient availability and plant health. This description retains the original measurements and functions, presenting them in a clear, customerfriendly format that highlights applicability, useful ranges, and health relevance.