Prepaid IC card single-phase energy meter is used to measure the single-phase AC active power with 50Hz frequency by IC card.
view this productRS485 energy meter is used to measure the single-phase AC active power with 50Hz frequency by RS485 line remotely.
view this productPrepaid IC card three-phase energy meter is used to measure the three-phase AC active power with 50Hz frequency by IC card.
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