Timbangan Analitik  Thoroughly pursued the User-friendliness Semi-micro Balance with Readability 0.00001g (0.01mg) Common　Specification Tare Zero to Full weighing range Span adjustment LF-R･････ Automatic and semi-automatic Span Adjustment with built-in calibration weight LF･････Manual opration Span Adjustment with external calibration weight Over error "o-Err" showed when Full weight range + 9 more digits over Temperature and humidity range 10～ 30℃、Up to 80ï¼… rh(without the dew condensation) Power source AC adapter Input 100-240VAC / Output 5.95VDC Output RS232C output (D-sub 9pin) USB output