Feature: 1.6-in-1 Meter Bluetooth-compatibility: by mobile applications, it can professionally measure pH, ORP, chlorine, EC, TDS and temperature. It is applicable to domestic drinking water, hydroponics, laboratories and aquariums. 2.Cloud Data Management System: Accurate real-time Bluetooth data transmission, with clear measurement values. Allows you to save, manage, and share test data at your fingertips without worrying about data loss. 3.Automatic Calibration of pH Tester: High sensitivity glass probe is used. Compared with other pH meters, pH is a three-point calibration . Our pH is a five point calibration and is equipped with calibration powder (pH 4.00, pH 6.86, pH 9.18, pH 7.00, pH 0.01). You can calibrate to the accuracy of the measurement. 4.Comprehensive Information Display: Just immerse the pH meter electrode in the solution to be measured, and the reading can be quickly displayed on the APP. Multiple parameters are displayed at the same time, and the mobile phone APP controls the backlight display. 5.High Precision Water Quality Tester: The high-precision algorithm chip and electrode of our digital water quality tester accurate and fast response. The green backlight LCD design ensures that you can read the measurement results under any conditions. Specification: PH value range: 0.1-14.0 Resolution: 0.1ph Precision: 0.1ph Temperature range: 0.1 - 8.0 31.2 - 176 Resolution: 0.1 /0.1 Accuracy: 0.5 EC range: 0-1999us/cm, 10.01-20.0mS/cm, 2000-10000uS/cm Resolution: 1uS/cm 10uS/cm 0.01mS/cm Precision: 2% F.S. TDS range: 0-999ppm, 1000-9990ppt Resolution: 1ppm 10ppm Precision: 2% F.S. range: 0.1-4.0mg/L Resolution: 0.1mg/L ORP range: 999mv Resolution: 1mv Precision: 15mv Battery: 3 x AAA, excluding Display: LCD digital display Backlight: APP control Temperature: automatic temperature compensation 0-60 Working environment: 0.1 - 80 ; Relative humidity: maximum 90% PH calibration: PH: 6.86/4.00/9.18 or 7.00/4.00/0.01 Shell material: ABS Size: About 160x90mm/6.29x3.54inch Color: As Shown Material: plastic Package Contents: 1 x Water quality detector Only the above package content, other products are not included. Note: Light reflection 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.