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1. single phase meter

Star Keypad Prepayment Meter Power-Vending Management System is specially designed and developed by Shenzhen Star Instrument Co., Ltd. It conforms with the STS standards and has been certificated by the STS Association.

Keypad prepayment ...

2. 3phase 4wire meter

this meter can measure and display three-phase current, voltage, active and reactive energy; measure active and reactive power and calculate active and reactive demand and have them displayed; and deal with energy time-section measurement as ...