There are many prepaid keyboard watches on the market, so what are the advantages of our keyboard watches under such competitive pressure.
First of all, our electric energy meter is a new type of electric energy meter, which can buy energy through the vending network. And the confidentiality is very good. The token is 20 bits long and has been encrypted.
Secondly，Our characteristics very much ，for example：Payment by 20 digits token ，Alarm when low energy/overload/fraud.With RS485 and optical communication functions for reading meter and setting parameters.Open terminal cover detection alarm.
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