MultiParameter water quality meter: measures pH, forTDS, electrical conductivity (EC / EC), humidity, and temperature for comprehensive checks in pools, hot tubs, households, labs, and more. Wide range and versatile resolution: forTDS 1–9999 ppm, /EC 0–9999 uS/cm, pH 0.00–14.00; resolutions 1 ppm, 1 uS/cm, and 0.01 pH to cover from tap and well water to hydroponics and aquariums. accuracy for reliable monitoring: pH ±0.05; forTDS/EC/humidity ±2%; temperature ±0.1 C, delivering repeatable readings for home safety and professional use. Portable and flexible design: compact size 115 x 70 x 18 mm and weight 564 g; easy to install and carry. Two versions available: A 220V plugin dualTDS+PH, B rechargeable dualTDS+PH for different scenarios. Practical use scenarios: Pool and hot tub maintenance: monitor pH, TDS, EC, humidity, and temperature to maintain safe water conditions. Hydroponics and aquariums: ensure nutrient balance and water quality with precise multiparameter readings. Household water testing and small labs: quick checks on tap or well water and test samples in compact, portable form. Compatibility and performance: supports five essential water quality parameters in a single unit, suitable for diverse environments while offering two power options to suit different setups.