Description DIY Supplies : ELECTRICAL Bluetooth PH Meter With ATC PH/TDS/Temp Meter, Digital Water Quality Monitor Tester For Pools, Drinking Water[pH Meter with Bluetooth]Professional measurement pH, TDS (ppm), 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./[pH Meter with Bluetooth]Professional measurement pH, TDS(ppm), 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 make it easy for you 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 method, and our pH is a 5-point calibration method 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 ensure 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 set 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.colour: green/brownMaterial: ABSPackage Contents:1 x 3 in 1 ph meter for water hydroponics/1 x 4 in 1 ph meter for water hydroponicsOnly the above package content, other products are not included.Note: Light shooting 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.