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pH
Range
0.00 to 14.00 pH
Resolution
0.01 pH
Accuracy
±0.02 pH
Calibration
Automatic 1, 2 or 3 points (pH 4.01, 6.86, 7.01, 9.18, 10.01) or 1 custom point
mV
Range
±600.0 mV
Resolution
0.1 mV
Accuracy
±0.5 mV
ORP
Range
±2000 mV
Resolution
0.1 mV
Accuracy
±1.0 mV
Calibration
Automatic at an optional point (relative mV)
Conductivity (EC)
Range
0 to 200 mS/cm (absolute EC up to 400 mS/cm)
Resolution
Manual: 1 µS/cm; 0.001 mS/cm; 0.01 mS/cm; 0.1 mS/cm; 1 mS/cm,
Auto: 1 µS/cm from 0 to 9999 µS/cm; 0.01 mS/cm from 10.00 to 99.99 mS/cm; 0.1 mS/cm from 100.0 to 400.0 mS/cm,
Auto (mS/cm): 0.001 mS/cm from 0.000 to 9.999 mS/cm; 0.01 mS/cm from 10.00 to 99.99 mS/cm; 0.1 mS/cm from 100.0 to 400.0 mS/cm
Accuracy
±1% of value or ±1 S/cm for greater value
Calibration
Auto 1 point (84 µS/cm, 1413 µS/cm, 5.00 mS/cm, 12.88 mS/cm, 80.0 mS/cm, 111.8 mS/cm) or custom
Total Dissolved Solids (TDS)
Range
0 to 400000 ppm (mg/L); (maximum value depends on TDS coefficient)
Resolution
Manual: 1 ppm (mg/L); 0.001 ppt (g/L); 0.01 ppt (g/L); 0.1 ppt (g/L); 1 ppt (g/L),
Auto:1 ppm (mg/L) from 0 to 9999 ppm (mg/L); 0.01 ppt (g/L) from 10.00 to 99.99 ppt (g/L); 0.1 ppt (g/L) from 100.0 to 400.0 ppt (g/L),
Auto ppt (g/L): 0.001 ppt (g/L) from 0.000 to 9,999 ppt (g/L); 0.01 ppt (g/L) from 10.00 to 99.99 ppt (g/L); 0.1 ppt (g/L) from 100.0 to 400.0 ppt (g/L)
Accuracy
±1% of value or ±1 ppm (mg/L), whichever is greater
Calibration
According to conductivity calibration
