Features [Smart Energy Monitoring] This energy meter allows you to track your power usage with real time data through APP, providing voltage, current, electricity, and power per hour (day, week, month, year) readings. [Reduce Power Consumption] This energy monitor is dedicated for high cost energy devices, helping you reduce energy consumption and save cost. [Intelligent Chip] This meter uses an intelligent chip with large scale integrated circuits and SMT surfaces mount technology, ensuring high performance operate. [Flame Retardant Material] The shell is made of PC material that is flame retardant, impact resistant, and sturdy, ensuring a long life. [DIN Rail Design] Designed with a back mounted DIN rail, this smart electric meter is easy and convenient to install. Specification: Item Type: Smart Energy Meter Material: PC Basic Parameter: Voltage: AC 110‑230 v How to Use: Installed in the corresponding circuit for use. Package List: 1 x Smart Energy Meter 1 x User Manual Package List 1 x Smart Energy Meter 1 x User Manual