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Product Classification
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DDSY450 Single-phase electronic prepaid watt-hour meters -
DTSY450, DSSY450 Three-phase electronic prepaid watt-hour meters -
DDSY450P Single phase electronic prepaid energy meter with RFID card -
DTSY450P, DSSY450P Three phase electronic prepaid energy meter with RFID card -
DDSY450J Single-phase electronic RS485 type prepaid watt-hour meters -
DTSY450J, DSSY450J Three-phase electronic RS485 type prepaid watt-hour meters -
DDSY450-E Single phase electronic prepaid energy meter with one card (IC) -
DTSY450-E、DSSY450-E Three phase electronic prepaid energy meter with one card (IC)
