prepaid water meter system oem
prepaid water meter system from Kaifeng Xintai Valve, including smart water meters, split customer interface units and vending software support
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Lora-Remotely-Reading-Split-Keypad-Prepaid-STS-Water-Meter
The STS (Standard Transfer Specification) is an Open Architecture initially introduced in South Africa in 1993, for the transfer of electricity prepayment tokens. Subsequently published by the IEC (International Electro technical Commission) as an International standard IEC62055-41,51.
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