Ion Concentration Range: 0.001~19999ppm, mg/L, mol/L (Depending on measuring range of Ion Selective Electrode) Ion ConcentrationAccuracy: ±0.5% Full Scale (Monovalent), ±1% Full Scale (Divalent) Calibration Points :2 to 5 points Calibration Solutions: 0.001, 0.01, 0.1, 1, 10, 100, 1000, 10000ppm
Temperature Range: 0~105°C, 32~221°F Temperature Accuracy :±0.5°C, ±0.9°F Temperature Calibration: Manual Temperature Compensation :0~100°C, 32~212°F, Automatic or Manual
Auto-Off: Manual or Automatic (10, 20, 30 minutes after last key pressed, Selectable)