Features: 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 will 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. Easy Installation: 35mm rail mounting, no need to replace wires connection is , just put the wires in the clip and measure. : Name: Tuya ZigBee Energy Meter Type1: 2CT Current: 0.2-80A Input voltage: 110-240 V, 50/60Hz Accuracy grade: 1.0 Working current: -10℃ to 55℃ Wireless type: 2.4GHz Item size: 47 x 47 x 18mm / 1.85 x 1.85 x 0.71in color: White material: plastic Package Contents: 1X Energy Meter 2X Current Sensor 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.