Tuya WIFI Smart Dual Channel Energy Meter with 2 Clamp 80A - Available to Do Calibrate 1 Channel and 2 Channel is AvailablePlease 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 ChannelReal-time total power of 2 channels of reverse and forward directionPower 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 50/60HzMeasurable Current Range: 0.2A-80AWiFi Frequency: 2.4GHZ (Not Support 5Ghz)Ambient Temperature Range:-10C ~ 55CApp can display Channel A and B Real-time power, current, voltage, power factor and frequency for Forward and Reverse direction clrealyThe meter allows to do calibrationCommunication :Wi-FiCamera Equipped:NoState of Assembly:Ready-to-GoCompatibility:All CompatibleApp name:Tuya Smart, Smart LifeMeasure range:0.2-80AVoltage:100-240VAmbient Temperature Range:-10 - 50 degreeWireless Frequency:WiFi 2.4Ghz, not support 5GhzDirection:Bidirectional 2 WayNote: 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: plasticcolour: bluePackage Contents:1 x Tuya Smart WiFi Energy Meter2 x CT TransformerOnly 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.