4-in-1 Electronic pH Meter for Swimming Pools, pH, TDS, and Temperature, with LCD Screen, for Drinking Water, Aquariums, Hydroponics, and Swimming Pools

General Description: A very complete 4-in-1 kit for checking the quality of your water, whether it comes from the tap, a rainwater harvesting system, an aquarium, or a swimming pool. The TDS and pH testers are small and lightweight, easy to carry in your pocket. Technical Specifications pH Tester: Measuring range 0.00 to 14.00 TDS Tester: Range 0 to 19990 ppm pH Resolution: 0.01 pH, Accuracy ± 0.05 pH TDS: 0 ~ 9990 ppm, Conductivity: 0 ~ 9990 µS/cm, Accuracy ± 2% Compatibility and Accessories Compatible with tap water, well water, seawater, aquarium water, and swimming pool water Package Contents: 1) One TDS-EC meter tester, 2) One pH tester with hard plastic storage case, 3) 3 pH calibration sachets, 4) Instruction manual Installation Remove the protective cover and immerse the pH meter electrode in the solution. No special installation is required. Operation Press the 'HOLD' button to lock the measurement result. The pH tester automatically calibrates at three points. Press 'ON/OFF' to turn on the device, shake it gently, and wait a few seconds until the readings stabilize. Other information: These portable pH, TDS, and EC meters are multifunctional professional sets, suitable for home or laboratory use, and widely used for numerous water quality testing applications.