General description The 4-in-1 pH Meter is a versatile water quality tester that accurately measures pH, TDS (ppm), EC (conductivity), and temperature. It is designed for various applications including hydroponics, gardening, pools, and aquariums. The device features an IP67 waterproof and dustproof design, making it suitable for both indoor and outdoor use. Technical specifications Measuring range: 0.00 to 14.00 pH Measurement accuracy: 0.01 pH Temperature compensation range: 0°C to 60°C (32°F to 140°F) Installation Automatic calibration: Place the electrode in a standard pH solution and press the MODE/CAL button for 3 seconds to initiate calibration. Calibration powders included: pH 4.00, pH 6.86, pH 9.18 (3 sachets provided). Usage Ideal for testing pH/TDS/EC/Temperature values in drinking water, tap water, swimming pools, aquariums, bathtubs, spas, wine, beer, and other liquids. Can be used in various environments such as kitchens, hydroponic rooms, laboratories, and outdoor humid