Trinity Energy Systems [P] Ltd manufactures Microcontroller based Digital Energy Meters. Trinity Energy Systems [P] Ltd is ISO 9001:2000 certified that offers electronic power and energy meters and power factor controllers. The Microcontroller based Digital Energy Meters are used for use in three phase electrical systems for sub-metering applications. The design of these meters is based on proven microcontroller technology; with front end ASICs resulting in compact and accurate energy metering. The accuracy of the meters is maintained even under severely distorted waveform conditions which occur due to harmonics in the system.