1.Used for 4 X3 phase or 12x1 phase circuit AC measuring 2.Record Power-on & Power-off time and on/off record 3.Record SOE (event log) and modify setting event 4.Freeze data per 5 min. Total quantity is up to 20,000 (Max. one year data) 5.Provide 18~72V DC power supply 6.Support split core current transformer, rated input 16.67mA, CT primary up to 100A 7.LED light for Pulse Output, Run and communication 8.Din Rail Mounted , provide MODBUS communication protocol