AC Adapter Universal 50-60 Hz, 100-240 VAC power adapter (Cat. No. 1010003) Outputs USB, RS232 Accuracy (Conductivity) 0.5% of reading ±1 digit > 3 μS; 0.5% of reading ±0.01 μS ≤ 3 μS Accuracy (mV) ±0.2 mV or ±0.05% of reading whichever is greater Accuracy (pH) ±0.002 Accuracy (Resistivity) 0.5% of reading ±1 digit Accuracy (Salinity) 0.5% of reading ±1 digit Accuracy (TDS) 0.5% of reading ±1 digit Alarm Output High/low limit alarm, calibration due alarm Backlight Option Yes, selectable Battery Life 800 hr. Battery Type 4 AA (sold separately) Calibration pH with calibration editing option, relative mV (RmV), ORP, conductivity with conductivity with calibration editing op Calibration Points 1 point relative mV (RmV) mode, 1 point ORP mode Calibration Points (Conductivity) Up to 5 Calibration Points (pH) 1 to 5
