... 2.5KHz, 32 parameters 3 line LED display DW series digital 3-phase multifunction Power MeterDW/MDW 3 line 4 digits LED ... can indicate by customer when ordering.3) Output: 2-3 alarm output, act as 3-phase under-voltage/lacking phase/over ... and measurement field, such as machinery, electrical cabinet, power sub-station, industrial automation, etc.. In addition to supply MYPIN brand products ...