Internal Resolution 600,000 ◆ Auto Zero Tracking Mechanismâ—† 2 available weighing units: g/lb ◆ Counting (normal mode), Weighing, Accumulation ◆ LCD display with three display areas, blue color LED backlightâ—† Hi-Lo Check-count/weightâ—† Bidirectional RS-232 output, which can be connected to PC, printer (LP-50), and optional USB interfaceâ—† Material Info. store in memoryâ—† Low battery indicationâ—† Auto temperature compensationâ—† Operating Temperature 0℃~40℃◆ Humidity range ≤85%RH Â