... 4-20mA can support 4-20mA input and output ,MODUS,size 48*96 vertical 1.Main featuresAll input :thermocouples, RTDs, linear voltages / urrent ... SSR voltage, linear current / voltage, relay contact, TRIAC thyristor trigger outputs, Supporting RS485 or RS232 commu- nication port, provides convenient data ... etc.Linear Current:0~10mA, 0~20mA,4~20mA etc.Input rangeK(-50~1300°C), S(-50~1700°C), R(-50 ...