1. Precise measurement: The measurement accuracy can reach 0.01.
2. Large LCD display: Clear display, easy to read.
3. Wide measurement range: It can measure a wide pH range from strong acids to strong bases.
4. Good stability: During long-term use, the readings are stable and not easily affected by environmental factors.
5. Automatic temperature compensation: It has an automatic temperature compensation function that can automatically adjust the pH reading according to the solution temperature.
6. Dual function: It can measure pH values and also measure electrode potential (mV values).
7. Quick response: It responds quickly to changes in solution pH and can display new readings promptly.
8. Durability: Sturdy structure, long service life, suitable for frequent use.

Operation Precautions:

Before use:
1. Calibration: Calibrate with standard buffer solutions (such as pH 4.00, 6.86, 9.18) to ensure accurate readings.
2. Check the electrode: Inspect for damage and ensure the filling solution is sufficient.
During measurement:
3. Sample preparation: Ensure the sample temperature is close to the calibration temperature. Turbid samples should be filtered.
4. Electrode operation: Gently place the electrode into the sample, avoiding contact with the container wall. Record the reading after it stabilizes.
After use:
5. Clean the electrode: Rinse with distilled water. If necessary, soak in a mild solution and then rinse thoroughly.
6. Store the electrode: Immerse glass electrodes in a 3 mol/L potassium chloride solution. Follow the manufacturer's instructions for storing combination electrodes.
Other:
7. Avoid interference: Keep away from strong magnetic and electric fields.
8. Regular maintenance: Perform a comprehensive maintenance and calibration every 3 to 6 months.
Operating environment:
1. Relative humidity: <80%.
2. Ambient temperature: 5 - 40°C.
3. Sample solution temperature: 5 - 60°C.
4. Power supply: 220V/50Hz power supply.
5. No significant vibration or strong electromagnetic field interference.