Function:

                  1. Under voltage protection 140V-210V (adjustable) (default: 170V) can be disable

                  2. Over voltage proteciton 230V-300V (adjustable) (default: 270) can be disable

                  3. Over current protection 1A-63A (adjustable) (default: 40A)

                  4. Reconnect time (delay on time): 1-500s (default: 30s)

                  5. Voltage meter

                  6. Ammeter

                  7. Energy meter