Product Features: 6-in-1 Meter Bluetooth Compatibility: Using mobile applications, this device can professionally measure pH, ORP, chlorine, EC, TDS, and temperature. It is suitable for domestic drinking water, hydroponics, laboratories, and aquariums. Cloud Data Management System: Offers accurate real-time Bluetooth data transmission with clear measurement values. Save, manage, and share test data effortlessly without concerns about data loss. Automatic Calibration of pH Tester: Features a high-sensitivity glass probe and a five-point calibration system (pH 4.00, pH 6.86, pH 9.18, pH 7.00, pH 0.01) for precise measurements, Compared to the standard three-point calibration of other pH meters. Comprehensive Information Display: Simply immerse the pH meter electrode in the solution to measure, and the readings are quickly displayed on the APP. The APP also controls the backlight display for multiple parameters. High Precision Water Quality Tester: Equipped with a high-precision algorithm chip and electrode for accurate and fast responses. The green backlight LCD design ensures readable measurement results under any conditions. Specifications: PH Value Range: 0.1-14.0 Resolution: 0.1ph Precision: 0.1ph Temperature Range: 0.1 - 8.0 (31.2 - 176F) Resolution: 0.1 / 0.1F Accuracy: 0.5F EC Range: 0-1999us/cm, 10.01-20.0mS/cm, 2000-10000uS/cm Resolution: 1uS/cm, 10uS/cm, 0.01mS/cm Precision: 2% F.S. TDS Range: 0-999ppm, 1000-9990ppt Resolution: 1ppm, 10ppm Precision: 2% F.S. ORP Range: 999mv Resolution: 1mv Precision: 15mv Battery: 3 x AAA (not included) Display: LCD digital display Backlight: APP control Temperature: Automatic temperature compensation (0-60C) Working Environment: 0.1 - 80C; Relative humidity: max 90% PH Calibration: PH 6.86/4.00/9.18 or 7.00/4.00/0.01 Shell Material: ABS Size: Approximately 160x90mm/6.29x3.54inch Color: As shown Material: Plastic Package Contents: 1 x Water quality detector Note: Only the above package content is included. Other products are not included. Light reflection and different displays may cause the color of the item in the picture to be slightly different from the actual product. The measurement allowed error is +/- 1-3cm.