... /T settable Up to 3 alarm,8 segments output control DW series Single phase Electric Meter(vol/ampere/power/frequency/power factor) Features: 1) Input: 0-5A/0-600V/0-100V selectable ... automation,eg.,single/three phase,voltage/current/power,three phase voltage/ampere integrated display control or up to 6 lines voltage/ampere display control, and power factor compensation ...