Multi-parameter portable pH meter, including 6 measurement functions, the meter is suitable for outdoor measurement of pH, redox potential, total dissolved solids (TDS), conductivity, salinity and resistivity of liquids.
• Multi-parameter Water Quality Analyzer with large backlit LCD display.
• 1 to 5 point key calibration, automatic identification of pH standard buffer.
• Optional pH buffer standard (USA/NIST/DIN) or 2-point custom calibration.
• Automatic electrode slope display, prompting the user whether to replace the pH electrode.

Portable pH Meter
• 1-point offset calibration, allowing adjustment of displayed values to known standards.
• Relative and absolute mV modes provide accurate ORP readings.
• 1 to 5 point key calibration, automatic identification of conductivity standard solution.
• Selectable cell constant (K=0.1/1/10), TDS conversion factor, normalized temperature (20 or 25°C), linear and pure water temperature compensation, seawater and practical salinity measurement modes.

Portable pH Meter
• Automatic temperature compensation to ensure accurate measurement over the full range.
• Automatic Calibration Reminder to remind users to calibrate the meter on a regular basis.
• Automatic end point locking, retaining stable measurement values for easy viewing and recording.
• Automatic electrode diagnosis, you can check the zero offset, electrode slope and conductivity K value.
• The system menu can customize 12 functional parameters such as the number of calibration points, stability standard, data lock mode, and automatic shutdown.
• One key reset (Reset) automatically restores the instrument to the factory default settings.
• Expanded memory can store up to 500 sets of measurement data.
• The built-in clock automatically marks the date and time of stored data to comply with GLP regulations.
• USB communication interface to send stored data to PC.
• Multi-mode power supply scheme (battery, power adapter, computer's USB port) ensures the smooth application of the instrument.