Tuya WiFi Smart Power Monitor: Monitor energy consumption in real time Power Statistics: Check voltage, current, power at any time Measurement Process: Clip the measurer to the cable and use your phone to connect the module (Cable needs to be above 10W) Power Settings: Set the upper and lower limits of power and implement automatic measurement, Measuring Range: 0.2-80A, Maximum standby power range: 3-10W Electricity query: You can view hourly, daily, monthly, Yearly and total KWh Consumed in App The product appearance and printed words may vary depending on the batch, but this does not affect use. Colour:Black Material:plastic Package Contents: 1 * Tuya WiFi Smart 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.