[pH Meter with Bluetooth]Professional measurement pH, EC(Conductivity), and Temp. suitable for household drinking water, hydroponics, lab, aquarium. It can be used as a classic tester even if it is not connected to a smartphone. [Cloud-Based Data Management System]Accurate real-time Bluetooth data transmission and clear measured values easy to save, manage and share test data without worrying about data loss. [Automatic Calibration pH Tester]With high sensitive glass probe, you can get a full measurement range of 0-14pH, 0.01 pH resolution. Compared with other pH meters, the pH is a 3-point calibration , and our pH is a 5-point calibration and equipped with a calibration powder (Asia Standard: pH 4.00, pH 6.86, pH 9.18, and EU Standard: pH 7.00, pH10.01), you can calibrate effortlessly to the accuracy of your measurements. [Comprehensive Information Display]Simply immerse the pH meter electrode in the solution to be tested, readings are quickly displayed on a large LCD display. multi-parameter display at the same time, mobile phone APP control backlight display. [Easy to Use]Digital pH meter fully customizable parameter settings. the App can set the upper and lower limits of pH, which can be set according to your needs. when the value you set exceeds the test range, the App interface will display a red value abnormally, notifying you of any values exceeding your preset range.Part Number BLE-9902 Colour:blue Material:plastic Package Contents: 1 * Smart Bluetooth PH Meter Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.