This Tuya WiFi intelligent energy meter helps measure how much energy the solar and photovoltaic system is producing or how much power it is consuming by monitoring application. Controlled by the Tuya APP, the app displays real-time power, current, voltage, for forward or reverse. Supports automatic setting of valve-values and with push notifications. Powerful Function: High-precise measurement, real-time monitoring of voltage, current and power of each channel when generating or consuming kilowatts. Mobilephone APP Control: The app displays real-time power, current, voltage for forward or reverse. Power Statistics: APP program displays daily, monthly and yearly reverse or forward totals of channel individually. Power usage percentage display to avoids abnormal power usage. Automation Function: You can set the power in APP, only when the power exceeds the value, the device will starts to work. Feature-rich Design: Automated setting of valve-values and push notifications, and the device is able to be calibrated by adjusting the percentage. Easy Installation: No need to replace wires connection is safer, just put the wires in the clip and measure. FAQ Q1: What should l do if l can't configure the switch module? a.Please check whether device is powered on. b. Make sure your mobile and switch module are under the same 2.4 Ghz WlFl network. c. Whether it's in good internet conditions. d. Make sure the password entered in App is correct. e. Make sure the wiring is correct. Q2: What device can be connected to this WlFl Single Phase Clamp? main switch,solar power generation,large machinery. Q3: What happens if the WlFl goes off? You can still control the device connected the switch module with your traditional switch and once WlFl is active again the device connected to module will connect automatical