5in1 Professional Water Quality Tester Allinone measurement: pH, temperature, and conductivity in a single compact handheld device. Eliminates the need for multiple tools, saving time and reducing costs for hydroponics growers and aquaculture professionals. Laboratorygrade accuracy: pH range 0.00–14.00; conductivity 0–19900 µS/cm. Readings are reliable to ±0.01 pH and ±2% accuracy, suitable for pool maintenance, aquarium care, and professional labs. Smart app integration: connect with a dedicated mobile app to log measurements, track trends, set alerts, and generate reports for longterm water quality documentation. Easy to use: large, backlit LCD provides clear realtime readings; ergonomic design supports onehanded operation; automatic temperature compensation ensures accurate results in varying conditions. Practical features: compact, durable design with straightforward operation for routine checks in homes, schools, clinics, and professional settings. Use scenarios: monitoring hydroponic nutrient solutions; maintaining home aquariums or reef tanks; regular pool or spa water quality checks.