... RS232 3.Accuracy:+-(0.2%FS+1)digit 4.CE Universal Digital Process Indicator1.T.C,RTD, mV,mA input2.4 ... on the screen as well as on site from a remote place via RS485, RS232 serial interface.MODBUS-RTU communication ... , 16 channel indicator, 32 channel indicator, 48 channel indicator, digital indicator, process indicator,temperature indicator KH105-F Economic Universal Digital Process Indicator