Smart pH Meter with Bluetooth Measures pH, TDS (ppm), EC (conductivity), ORP, SG, Salinity (ppt), and Temperature. Suitable for household drinking water hardness testing, hydroponics, labs, and aquarium water quality. Can function as a classic water quality tester without connecting to a smartphone. 7in1 analyzer with information display: simply immerse the sensor in the solution to be tested. Readings are shown on a large LCD display, with multiparameter values available at a glance. Supports mobile phone app control and backlight display for easy viewing. Cloudbased data management system Realtime data transmission with clear measured values. Easily save, manage, and share test data, reducing the risk of data loss and enabling seamless data access across devices. Automatic calibration pH tester sensitivity pH sensor with a measurement range of 014 pH and 0.01 pH resolution. Uses a 5point calibration method for improved accuracy, compared to the common 3point approach, allowing effortless calibration to ensure precise readings. Use scenarios Home use: test hardness and overall water quality for drinking water safety. Hydroponics and nutrient solution monitoring: track pH, EC, TDS, and temperature to optimize plant growth. Aquariums and labs: monitor water parameters to maintain suitable conditions for living organisms and experimental samples.