... 3 phase 4 lines is OK4) Alarms: Up to 4 relay output for voltage, current, power factor, active power, reactive power ... etc., select freely.5) Transformed analog output 4-20mA for voltage, current, active power, reactive power, ... , Counter, Tacho Meter, Frequency Meter, flowmeter,Timer,Timer Relay, Solid State Relay, Proximity Sensor, ,Pressure sensor ,load cell sensor, KNE ...