EZ9908 Green Backlight 4-in-1 Water Testing Kit - pH/TDS/EC/Temperature Meter

Calibrate the pH function using the included buffer powder packets mixed with distilled water. Use the calibration mode and a mini screwdriver to adjust to the known buffer values (typically pH 4.01, 6.86, or 9.18). For TDS, calibration is typically performed using a standard NaCl solution. Refer to the user manual for the detailed step-by-step procedure for each parameter.

Yes, the EZ9908 features built-in Automatic Temperature Compensation (ATC). The integrated temperature sensor automatically corrects the pH and EC/TDS readings based on the solution's current temperature, providing accurate measurements across its operating range of 0 to 60°C without manual adjustment.

Yes, the combined glass electrode and conductivity cell probe is designed to be user-replaceable. This extends the lifespan of the meter significantly, as the probe is the primary consumable component. Replacement probes compatible with the EZ9908 connector are available from various suppliers.

TDS (Total Dissolved Solids) is an estimate of the total mass of inorganic salts and minerals dissolved in water, typically expressed in parts per million (ppm). EC (Electrical Conductivity) measures the water's ability to conduct an electrical current, expressed in microsiemens per centimeter (µS/cm). The EZ9908 measures EC directly and calculates TDS using a standard conversion factor, providing both values for comprehensive water analysis.