Indicator - 8 x 7 Segment LED Digits Display - ADC Resolution 1 / 1,048,000 (20 Bits) - Interface RS-232 port / RS-422 / RS-485 - Load cell 2 mV/V or 3mV/V - Power supply 220 VAC, 50 Hz - Display decimal 0 to 4 - Display step 1 , 2 , 5 , 10 , 20 - Input signal range 0 to 25 mV - Reference Volt output 5 VDC - Operating temp. 0 to 80 C - Auto zero maintenance +/-0 to +/-255 Step - Weight freezing function - Accumulate Weight, Batch Counter - Maximum weight hold - Full function host communication