Automatic calibration - The NF-EZ9908 has an automatic calibration function that adjusts to water temperature and water quality to immediately measure accurate pH readings.
Accuracy - NF-EZ9908 has a sensitive electrode sensor to read accurate pH values.
4-in-1 Model - NF-EZ9908 4-in-1 pH meter, you can accurately measure pH, TDS, EC, TEMP to ensure the health of your family's water.
Wide range of uses - NF-EZ9908 is only 90g, ideal for carrying around, and can meet a variety of water quality testing.