- 4-in-1 multifunction digital meter: measures pH, TDS, EC, and water temperature - High accuracy: pH range 0.00-14.00, resolution ±0.01 pH, TDS 0-9999 ppm, EC 0-9990 μs/cm, temperature 0.1-60 °C - Automatic 3-point calibration (pH 4.00, 6.86, 9.18) for maximum reliability - Automatic temperature compensation for stable results under different conditions - Auto-off function for energy saving and longer lifespan - Backlit LCD screen displays measurement values and power consumption - Portable, water-resistant design (IP67), easy to carry and use anywhere - Ideal for analyzing water quality in pools, aquariums, drinking water, laboratories, agriculture, and more - Essential tool to ensure clean and safe water in multiple applications