8in1 water quality tester: professionally measures pH, conductivity, total dissolved solids (TDS), oxidationreduction potential (ORP), chloride, salinity, specific gravity, and temperature. The measurement units can be easily switched on the screen for convenient reading. Wifi app connection: enables accurate realtime wireless data transmission and clear measurement values. Facilitates easy saving, management, and sharing of test data without worrying about data loss. Data logger: automatically stores data for 30 days. Access data at any time and transmit a data set every 15 seconds. Includes data curve analysis. Files can be received on your mobile phone or computer. LCD backlight display: shows multiple parameters simultaneously. The backlit display is clear and easy to read, supporting night monitoring. 23 practical use scenarios Aquaculture and pond management: monitor pH, salinity, temperature, and other critical parameters to maintain healthy water conditions for fish and other aquatic life. Hydroponics and irrigation systems: keep nutrient solution parameters in balance by tracking pH, conductivity, TDS, and temperature to optimize plant growth. Industrial or municipal water testing: continuously track key metrics, log data automatically, and share results with team members for process control and compliance.