Portable ion meter with one parameter, the sulfide ion concentration suitable for measurement of liquids.

Functional characteristics:
* 2 to 5 points press the calibration from low concentration to high concentration.
* Selectable units of multiple ion concentration (ppm, mg/l, mol/L) meet the needs of different measurements.
* MV measurement mode allows the user to check the electrode to ensure measurement accuracy.
* Automatic temperature compensation provide precise measurements in the full scale range value.
* Automatic calibration reminder prompts you to periodically calibrate the instrument.
* Automatic end lock, keep the stable measuring values easy to browse, or record data.
* Help hints as a real-time operating instructions simplified instrument.
* Automatic electrode Diagnostics display electrode slope value of the sensor.
* The system menu allows you to set the calibration points, display resolution, ion concentration, and measurement stability, temperature units, time and date to meet individual application requirements.
* One-click Reset to restore the instrument to the factory mode.
* Expandable memory of up to store 500 sets of measurements.
* Built-in clock mark the storage time and date to meet the GLP standards.
* Storage is allowed to send data to PC USB communication interface.