Description: 6 In 1 Detecting Function: This water quality tester can measure the PH, Total Dissolved SolidsTotal Dissolved Solids, EC, temperature and chlorine in water for you and help you fully understand the water quality of the tested water. Mobilephone APP Remote View: After connect with your mobilephone correctly through the BT, all testing results can be viewed on the APP. Large LCD Display Screen with Backlight: The large display screen with backlight allows you to read the testing data normally even in light or even in total dark, and you can turn on/off the backlight on your mobilephone. IP67 Waterproof: The IP67 waterproof level makes this product can be normally used in water and can provide a long service time. You can set a high or low PH/EC/ORP limit according to your needs, when the test results is above or below the range, the value will be displayed in red to alarm you. Specification: Material: Plastic Colour: Blue+White Size Chart: Size: 155x35mm/6.10x1.38inch Package Includes: 1 x Water Quality Tester Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful online shopping!