... energy 3.Adopt dedication meterage chip ADE7755 Static Single-Phase Electric Energy Meter uses advanced special recording ... with high precision elements. Mainly used in AC single-phase watt-hour with its recording frequency of ... 50Hz, it is highly accurate, reliable, durable, low power consumption, without reversion, creep-proof, anti-tampering, ... 60Hzclass 1.0 or 2.0 Single phase electricity power meter