Features:5in1 Water Quality Tester: Multifunctional design, real-time monitoring of PH, Total Dissolved Solids, S.G, EC, and temperature, high-accuracy and quick response, practical to use.Tuya APP Control: Support to connect to Tuya APP via WiFi, with stable data transmission, you can download APP to view current or historical data directly on the cellphone. The APP is compatible with iOS and Android systems.Long Data Record: The application support check the real time data, and you can see the recorded historical data , easy to compare and analyze, and easy to develop solutions.Data Output in Excel Sheet: Data in hour/dav/week/month is sent to the mailbox in the form of excel sheet. Download after sending email.Wide Applications: Multi-parameter intelligent water quality detector, strong practicability, very suitable for aquarium, hydroponics, aquaculture, swimming pool, drinking water, laboratory, etc.