1.8 in 1 water quality tester Eight parameter measurement in a single unit: pH, EC, TDS (ppm), ORP, CF, Salinity, SG, and Temperature. The measurement units can be switched on the screen with one click. WiFi App connected: Accurate realtime wireless data transmission and clear measured values. Makes it easy to save, manage and share test data without worrying about data loss. Data logger: Data is automatically stored and saved after 30 days. Data is received continuously; a set of data is transmitted in 15 seconds. Includes data curve graphs for analysis. You can export an Excel file to your phone or PC. LCD backlight display: Multiparameter display at the same time; LCD backlight display for clear reading; supports night monitoring. Use scenarios: Hydroponics and aquarium maintenance: monitor pH, EC/TDS, temperature, and other parameters, then log and compare trends over time via the app. Seawater or irrigation water testing: track salinity, SG, CF, and temperature, and easily share results with teammates. Field testing and data sharing: realtime data streaming to Excel on phone or PC, with quick data curves for analysis in the field or on site.