The APM Series Panel Multifunction Energy Meter from Acrel is a powerful instrument that provides important electrical parameters for energy management. It accurately measures and displays parameters such as voltage, current, frequency, active/reactive energy, and power factor. The meter can support a wide range of current transformers, which makes it suitable for different types of applications. It has various functions such as RS-485 communication, alarm control, and energy pulse output. The APM Series Meter can be used to monitor and manage energy consumption in various industries, including manufacturing, data centers, commercial buildings, and more. It is an effective energy management tool that helps reduce energy consumption, enhances efficiency, and saves costs.