5-in-1 Water Quality Test: The PH tester has 5 functions, professional measurement of pH, TDS, EC, TEMP and ASLT values, suitable for home drinking water, hydroponics, laboratories, aquariums, etc., can help you measure water quality and protect your health. Real-time Data Transmission: Our water quality testing instruments can be connected to a mobile app, so that the data can be transmitted in real time accurately, the measured values are clear at a glance, allowing you to easily save, manage and share test data without worrying about data loss. Quick Detection: This Water Quality Tester adopts a high-sensitivity glass probe, which can quickly detect the data of water and provide you with instant and accurate results. Simple to Apply: Simply immerse the pH meter electrode in the solution to be measured and the reading can be quickly displayed on the large LCD display. Equipped with calibration powders (Asian standard: pH 4.00, pH 6.86, pH 9.18, EU standard: pH 4.00, pH 7.00, pH 10.01), you can easily calibrate to ensure measurement accuracy. Simple to Carry: Our Water Quality Tester can be put in your pocket for its small size, so that you can measure water quality anytime and anywhere, which is convenient for you. Its back has a hole, can be hung up.