Cloudbased data management system: Accurate realtime Bluetooth data transmission and clear measured values. Easy to save, manage, and share data without worrying about data loss. pH meter with Bluetooth: Professional measurement of pH, EC, TDS, and Temp. Suitable for household drinking water, hydroponics, lab, and aquarium. Can be used as a classic tester even if not connected to a smartphone. Comprehensive information display: Simply immerse the pH meter electrode in the solution to be tested, and readings are quickly displayed on a large LCD display. TDS meter with automatic temperature compensation: Temperature can affect reading levels. Digital pH tester supports a range of 0.0°C–50.0°C (32.0°F–122.0°F). Automatic temperature compensation ensures accurate readings in any environment. Use scenarios: Test and monitor drinking water at home with cloudsynced records that can be shared with family. Manage Manage Manage nutrient solutions in hydroponics, keeping pH, EC, TDS, and temperature within ranges. Conduct aquarium maintenance or laboratory experiments with reliable, ATCassisted readings and easy data export.