Tuya WIFI Smart Dual Channel Energy Meter with 2 Clamp 80A - Available to Do Calibrate 1 Channel and 2 Channel is Available Please note If you buy 1 Channel meter, please just only connect one channel wire of A or B, and leave the other one unconnected anyting. Tuya WIFI Smart Dual Channel Energy Meter with 2 Clamp 80A - Available to Do Calibrate 1 Channel and 2 Channel is Available Please note If you buy 1 Channel meter, please just only connect one channel wire of A or B, and leave the other one unconnected anyting. 2 Channels For Reverse and Forward direction, 1 Channle or 2 Channels are available to Choose, And you can read from App for each Channel Real-time total power of 2 channels of reverse and forward direction Power for Channel A and B Separately(W) Current(mA) Voltage(V), Power factor, and Frequency(Hz) Electricity Statistic for each channel in Forward and Reverse direction. Hourly Elec. (KWh) Daily Elec. (KWh), Monthly Elec. (KWh) Yearly Elec. (KWh) Technical data: Rated Voltage:100-240V AC 50 or 60Hz Measurable Current Range: 0.2A-80A WiFi Frequency: 2.4GHZ (Not Support 5Ghz) Ambient Temperature Range:-10C - 55C App can display Channel A and B Real-time power, current, voltage, power factor and frequency for Forward and Reverse direction clrealy The meter allows to do calibration Communication :Wi-Fi Camera Equipped:No State of Assembly:Ready-to-Go Compatibility:All Compatible App name:Tuya Smart, Smart Life Measure range:0.2-80A Voltage:100-240V Ambient Temperature Range:-10 - 50 degree Wireless Frequency:WiFi 2.4Ghz, not support 5Ghz Direction:Bidirectional 2 Way Note: Due to different production batches, the label words on the product are random. The actual product may have slight differences or color differences. This does not affect the applicability. Material: plastic colour: blue Package Contents: 1 x Tuya Smart WiFi Energy Meter 1 x CT Transformer 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.