Please note it's not bidirectional meter, it can only measure the consumed power. and only show positive data on App.     The meter requires the measured device must have neutral wire. otherwise it can't measure the device's voltage, current, and power.     Specifications: In the APP It Can Display: Hourly Elec. (KWh), Today Elec. (KWh), Monthly Elec. (KWh), Yearly Elec. (KWh), Current Ele(mA), Current Power(W), Current Voltage(V), Total Ele(KWh)     Color: White     Material: plastic          Technical data: Rated Voltage:100-240V AC 50/60Hz     Measurable Current Range: 0.2A - 63A     WiFi Frequency:2.4GHZ     Ambient Temperature Range:-10°C ~ 55°C     App Real Time Monitor Energy Consumed KWh. Voltage, Current, and Power     Electricity Statistic     You can view hourly , daily , monthly, Yearly and total KWh Consumed in App.     Automation , It allows to make a Scene for this device working with other tuya devices     Set Automation for the Measured Device ,     For example, If Power or Current Is over the Value, then other tuya device starts to work     Easy and Safe to Install     Non-Connect to be safe.     No need to change your wire connection, just put the wire into the clamp, then it can measure.          Package Contents:     1 x WiFi 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.                             Tuya Smart Life Wifi Wifi Energy Meter With Current Transformer Sensor Clamp Power Consumption Monitor 110V 240V                        Please note it's not bidirectional meter, it can only measure the consumed power. and only show positive data on App.     The meter requires the measured device must have neutral wire. otherwise it can't measure the device's voltage, current, and power.     Specifications: In the APP It Can Display: Hourly Elec. (KWh), Today Elec. (KWh), Monthly Elec. (KWh), Yearly Elec. (KWh), Current Ele(mA), Current Power(W), Current Voltage(V), Total Ele(KWh)     Color: White     Material: plastic          Technical data: Rated Voltage:100-240V AC 50/60Hz     Measurable Current Range: 0.2A - 63A     WiFi Frequency:2.4GHZ     Ambient Temperature Range:-10°C ~ 55°C     App Real Time Monitor Energy Consumed KWh.