Multiparameter Water quality meter is designed for high performance and easy operation. The meter is capable of measuring up to 7 water quality parameters, including pH, ORP Conductivity, TDS, Salinity, Resistivity, and temperature, MULTI-POINT PUSH-BUTTON CALIBRATION The meter has multi-point calibration mode. From setup menu, choose calibration and immerse electrode into indicated calibration solution, press ENTER key and meter is automatically calibrated. AUTO-BUFFER RECOGNITION During calibration, if the calibration solution or selected value does not match the meter’s indicated value, an ERROR message is displayed. VIEWING OF ELECTRODE SLOPE After calibration, the percentage slope of the electrode is displayed before the meter returns to measurement mode. Per the slope value, user decides whether to change the electrode. AUTOMATIC TEMPERATURE COMPENSATION : By using temperature probe AUTO-RANGING FOR CONDUCTIVITY The meter has auto-range functions for measuring conductivity and total dissolved solids (TDS). Upon immersing conductivity sensor into sample solution, the screen immediately displays the value in appropriate measurement range for accuracy,