The NMI/Sub-billing digital meter is a 100A direct connect meter designed for three-phase systems with a voltage of 415V. It features 3 digital pulse inputs and 1 digital pulse output, allowing for easy integration into existing systems. The RS485 port with Modbus RTU protocol enables seamless communication with other devices. With an accuracy class of 1 to IEC62053-22, this meter ensures precise measurements. The large LCD display provides clear visibility of multifunction measurements. One of the standout features of this meter is its self-powered capability, eliminating the need for external control power. Additionally, it offers a solid-state energy pulse output. For data logging purposes, this meter can store up to 16 measurements for a period of 197 days, thanks to its 2MB log memory. Its compact design allows for easy installation on a DIN rail mount. Overall, the NMI/Sub-billing digital meter is a reliable and efficient solution for accurately measuring and monitoring electricity usage in three-phase systems.