... parameters 3 line LED display DW series digital 3-phase multifunction Power MeterDW/MDW 3 line 4 digits LED displayFeatures: ... 3-phase under-voltage/lacking phase/over current/breaking line protection; Current: isolated analoge output 4-20mA for any signal ... , Counter, Tacho Meter, Frequency Meter, flowmeter,Timer,Timer Relay, Solid State Relay, Proximity Sensor, ,Pressure sensor ,load cell sensor, KNE ...