Watt Meter Report Period. Unit: 5 seconds. kWH Meter Report Period. Unit: 10 minutes. Threshold of Watt for Load Caution. Unit: 1 watt Threshold of kWH for Load Caution. Unit: 1 kWH External switch type: 1-> One Push button, 2->Two Push button Level report mode: 1-> Report destination level in 5s, 2-> Report 10 percent level while running