... . Total 28 electrical parameters;2) 240*160 dot big LCD for display.3) Two On-Off Input / Output, with remote ... Active Power, Reactive Power;7) Transformed analog output 4-20mA for voltage, current, active power, reactive power, frequency, power ... (Modbus RTU protocol);9) With power down memory function for KWH / KvarH. ModelAlarm AnalogCommunicationPulse OutputON/OFF OutputDW9L-A30BNONONO YESYESDW9L ...