6-in-1 meter driven by an app, professionally measuring pH, ORP, chlorine, EC, TDS and temperature. Suitable for home drinking water, hydroponics, laboratories and aquariums. High accuracy and fast response. A high precision algorithmic chip and stable electrodes deliver reliable readings, with a green backlit LCD for easy viewing in any light. IP67 waterproof protection. Built to endure use in wet environments and provide a long service life. Comprehensive information display. Simply immerse the pH electrode in the solution and the reading appears on the app. Multiple parameters are shown at once and the app controls the backlight display. Synchronized data display. Readings are automatically synced to the app as soon as measured, with multiple data points visible simultaneously for convenient monitoring. No need to repeatedly operate the device just to view results. Use scenarios: - Test and monitor home drinking water quality for pH, chlorine and other metrics. - Manage nutrient solutions in hydroponics to optimize plant health. - Track water parameters in aquariums or laboratory experiments for quick, coordinated insights.