... Up to 3 alarm,8 segments output control DW series Single phase Electric Meter(vol/ampere/power/frequency/power factor) Features: ... system,factory power distribution,building automation,eg.,single/three phase,voltage/current/power,three phase voltage/ampere integrated display control or up to ... class:IP65.7) Power supply:regular:80-260V AC/DC, 12-30V AC/DC indicate when ordering.. We can manufacture ...