Feature: 1. 6-in-1 Meter Bluetooth Compatibility: Driven 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, this model uses a five-point calibration method for pH (pH 4.00, pH 6.86, pH 9.18, pH 7.00, pH 0.01) and includes calibration powder. You can easily calibrate to ensure the accuracy of the measurement. 4. Comprehensive Information Display: Just immerse the pH meter electrode in the solution to be measured, and the reading will be quickly displayed on the app. Multiple parameters are displayed simultaneously, 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 ensure 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: 0.1 pH Precision: ±0.1 pH Temperature range: 0.1 °C – 80.0 °C / 31.2 °F – 176 °F Resolution: 0.1 °C / 0.1 °F Accuracy: ±0.5 °C EC range: 0–1999 μS/cm, 10.01–20.0 mS/cm, 2000–10000 μS/cm Resolution: 1 μS/cm, 10 μS/cm, 0.01 mS/cm Precision: ±2% F.S. TDS range: 0–999 ppm, 1000–9990 ppt Resolution: 1 ppm, 10 ppm Precision: ±2% F.S. CL range: 0.1–4.0 mg/L Resolution: 0.1 mg/L ORP range: ±999 mV Resolution: 1 mV Precision: ±15 mV Battery: 3 x AAA (not included) Display: LCD digital display Backlight: App control Temperature compensation: Automatic