6in1 Water Quality Tester: Bluetooth compatible and capable of measuring pH, ORP, residual chlorine, EC, TDS, and temperature. Suitable for home use, swimming pools, hydroponics, laboratories, and aquariums. Cloud Data Management System: Realtime Bluetooth data transmission lets you easily save, manage, and share your testing data without data loss, ensuring accurate measurement values are always at your fingertips. Automatic Calibration for Accuracy: Features a sensitivity glass probe and a fivepoint calibration method. Includes calibration powders (pH 4.00, pH 6.86, pH 9.18) to ensure precise measurements every time. Comprehensive Display with APP Control: Immerse the electrode in the solution and view multiple parameters on the mobile app. The backlit display is controlled via the app, allowing for easy reading under any conditions. Use scenarios: Home water testing:Monitor pH, ORP, chlorine, EC, TDS, and temperature to maintain safe, consistent drinking water and household water quality. Pool care:Track residual chlorine and pH to support proper sanitation and swimmer comfort, while monitoring EC/TDS and temperature for overall pool conditions. Hydroponics and aquariums:Maintain nutrient balance and water quality by regularly checking pH, EC, TDS, and temperature, with data stored and accessible via Bluetooth and the cloud.