... consumption, power factor, frequency 2.Single phase 1. Features of DW8 single phase power controller: - Multi-function coulo-meter. - Measuring object: voltage, current, ... alarm RS485AV/AA/DA/AA input 48H×96W×100Lmm 3. Technical Specifications:Property projectSpecific parameterPower supplyAC 90~260V 50 ... us ! IBEST ELECTRICAL CO.LTD IBEST DW8 Single Phase Series , Up to 3 Alarms , Digital Coulo Meter