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sts keypad prepayment energy meter
Specification: IEC62055-41, IEC62055ï¼?1 IEC62053-21, SPLN D3.009-1:2010
Detail: STS meter adopts virtual media â€?20-digit encryption token to execute power information exchange, realizing the function of prepaid. The basic principle is as follows: (1) Users buy certain electricity quantity; (2) The e...


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