Trinity Energy Systems [P] Ltd manufactures Revenue Grade Dual Source Digital KWh Meter. Trinity Energy Systems [P] Ltd is ISO 9001:2000 certified that offers electronic power and energy meters and power factor controllers. The Revenue Grade Dual Source Digital KWh Meter of model number E1000 meets the accuracy requirements of class 1.0s as per the IS13779, and is available in 1P2W and 3P3W / 3P4W versions, in current ranges of 5-30 A and 10-60 A. The meter is equipped with RS485 communication port for implementation of EMS / BMS in a PC or SCADA environment. The Revenue Grade Dual Source Digital KWh Meter is a dual source meter, and has two energy registers. It is ideally suited for residential, commercial and LT industrial loads. This meter is guaranteed to work in harsh noisy environments, and meets or exceeds the regulatory requirements for EMI/EMC, voltage and frequency disturbances, faults, etc.