... , advanced technology, high quality and performance, high accuracy, photoelectric isolated, universal use, used to monitor, record, analyze the processes ... . Features .8MB built in memory for long time memory .Photoelectrical isolated input: T.C., RTD, DC current, DC voltage. .Turn off ... .RS485 MODBUS-RTU .RS232 printing port to mini printer Specification Input signal • Thermocouple: K,S,E,J,T,B,N, ...