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Water quality test pen instruction manual EZ9908
14/11/2025
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Precautions for use
- Avoid impacts to the electrodes during use to prevent damage.
- After analysis or calibration, it is recommended to rinse the analytical area of the test pen with water and then dry it with tissue paper to avoid residual reagent affecting subsequent analytical data.
- Please calibrate the water quality test pen regularly to ensure the instrument obtains data with optimal accuracy. (It is recommended to calibrate at least once a month.)
- Please replace the calibration solution regularly. (It is recommended to replace it at least once a month.)
- The product box contains calibration solution powder (pH 4.01, pH 6.86, pH 9.18), which can prepare approximately 250ml. Please replace the solution regularly to maintain the instrument at optimal accuracy.