A smart single-phase DIN-rail electricity meter featuring integrated Bluetooth wireless communication for convenient data access and configuration using a mobile app. This elite-class meter operates at 120V/60Hz with a 5(100)A rating, complies with IEC62052-11 and IEC62055-31 standards, and achieves IP54 ingress protection for reliable performance in various environments. The backlit LCD displays real-time energy consumption data, with 1000imp/kWh pulse output for integration with building management systems. Its compact DIN-rail form factor and wireless Bluetooth connectivity make it ideal for smart building automation, sub-metering projects, and energy auditing.