7in1 Smart pH Meter with Bluetooth Measures pH, TDS (ppm), EC (conductivity), ORP, Specific Gravity (S.G), Salinity (ppt), and Temperature. Ideal for household drinking water hardness testing, hydroponics, labs, and aquarium water quality. Works as a classic water quality tester even when not connected to a smartphone. Cloudbased data management Realtime Bluetooth data transmission with clear measured values. Easy to save, manage, and share test data while eliminating worries about data loss. Automatic calibration pH tester sensitivity pH sensor with full measurement range 014 pH and 0.01 pH resolution. Uses a 5point calibration method for enhanced accuracy, compared with the common 3point approach, enabling effortless and reliable precision. 7in1 analyzer information display Simply immerse the pH meter sensor in the solution and view readings quickly on a large LCD display. Simultaneous multiparameter display with backlight. Smartphone app control supported for extended functionality. Use scenarios Home drinking water and hardness testing to ensure safety and suitability for household use. Hydroponics and nutrient solution monitoring to maintain pH, EC, TDS, and salinity for plant growth. Aquarium and lab water quality checks to track pH, temperature, ORP, and related parameters for stable environments.