Feature: 1. Accurate Measurement: Precision glass bubble electrodes ensure test accuracy of the pH and provide accurate data, important for adjusting the pH. 2. Data Retention: When measuring, it is not convenient to read results, you can press the HOLD button to take the tester and then read the data. 3. Large Screen: High definition large screen display, clear values can be easily read, suitable for the needs of pH testing in various areas. 4. Wide Application: Water quality meter is suitable for drinking water, aquaculture, swimming pools, etc., used to determine water quality values. 5. Quality Materials: Made of quality materials, waterproof and shockproof, strong durability, can ensure long term reliable performance. Specification: Item Type: Digital PH MeterMaterial: ABSLength: Approx. 18.5cm/7.28in Measuring Range: 0-14PH Measurement Accuracy: 0.01PH Resolution: ±0.05PH Temperature Compensation: Automatic temperature compensation (ATC) Power Supply Mode: 3x1.5V (LR44) (not included) Standby: 10 minutes automatic shutdown Lock: Manual key locking. Package List: 1 x Digital PH Meter1 x Manual3 x Pack Test Powder