Description 1. High Accuracy: With the titanium alloy probe and the latest sensors, you can get nearly exact measurements every time. Plus, the meter can easily be recalibrated if needed to increase accuracy.2. Easy to Use: Simply immerse yourself in the meter, stir, and get your results in seconds. No calibration or setup required, you can use it right away.Save MoneyInstead of getting involved in expensive lab test or professional equipment, you can get reliable results at home.3. Simple and immediate: Professional pH meter, TDS meter, EC meter and temperature meter 4 in 1. You can know the water quality in seconds. With calibration function to ensure the measurement accuracy.4. Suitable for: Check the TDS or EC of your aquarium, swimming pool or water source. You can determine the efficiency of your RO, DI or distillation system, check the nutrient content of your hydroponic setup and much more.Color: white, blue(optional) Package list:1*Ph Tester Note: 1. Please allow a little error due to manual measurement. Please make sure you don't mind before bidding 2. The color may vary depending on the display. Please understand Note: Hello, please pay attention to your shipping address when purchasing products. If your receiving information (such as name, street, house number, doorbell/email without name) is incorrect, the order will not be delivered correctly.)