Mitsubishi Electric PLC ALPHA Base Unit 8 inputs/6 relay, outputs, AC, Type ALPHA MAIN UNIT, Power Supply (V) 100-240, Current Type AC, Program Memory 200 BLOCKS, Program Memory Unit EEPROM, Integrated Digital Inputs 8, Integrated Digital Outputs: 6, Output Type: RELAY, Local I/O Points: 14, Local + Remote I/O Points: 14, Expandable: YES, RS-232: 1, Power Consumption (W): 5.5, Buffer Battery: NO, Protection Class: IP20,Min. Ambient Temperature (°C): -25, Max. Ambient Temperature (°C): 55, Series: ALPHA2