Powerful Function: High-precise measurement, real-time monitoring of voltage, current and power of each channel when generating and consuming kilowatts. Mobilephone APP Control: The app displays real-time power, current, voltage, power factor and frequency of channel for forward and reverse. Power Statistics: APP program displays daily, monthly and yearly reverse and forward totals of channel individually. Power usage percentage display to avoids abnormal power usage. Automation Function: You can set the power or current value in APP, only when the power or current exceeds the value, the device starts to work. Feature-rich Design: Automated setting of valve-values and push notifications, and the device is to be calibrated by adjusting the percentage. Input voltage:AC 85V-250V Measuring range:0.2-80A/gang Wi-Fi Standard:Wi-Fi 2.4Ghz b/g+Bluetooth Working temperature:-20℃-70℃ Size:73x46x29mm Colour:As Shown Material:Plastic Package Contents: 1 * Smart Energy Meter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.