... since they regroup the functions of traditional electric transmitter and digital meters. Therefore they are widely being used ... ,U,F,P,Q,S,PF,kWh, kVarh - Network: Single-phase - Voltage: AC 120V, 230V, 400V (programmable); overload: 480V ... options you need. For example: Need the single phase 72 model ammeter with RS485 communication, 2DI/2DO ... product type is PZ72L-E/KC Single Phase Power Meter PZ72-E