... Display:4- LED -1999 --9999 Auxilliary power: 24V/12V/30mA DA series Process Indicator for voltage & ampere measurementFeatures:1) Input: mA, mV, V ... ) RS232 or RS485 Communication, Modbus RTU Protocol.7) Power supply: 18--30V AC/DC or 80--265V AC/DC; ... such as machinery, electrical cabinet, power sub-station, industrial automation, etc.. In addition to supply MYPIN brand products, We have successfully ...