It is designed with a built-in electrical shunt so you don't have to buy one. Current Test Range: 0~100A. 1000~9999W when ≥1kW and <10kW;. 10~9999kWh when ≥10kWh and ≤9999kWh. If no button is pressed for 10 seconds, exit the reset state without resetting energy data.
