Automatically shuts off the power when excessive voltage, Low (<102V) and High (>132V), or open neutral is present. Automatic reset on power restoration. LCD display will continuously monitor and display (in English) voltage and amp draw . LCD display will also show faults (when occurred) for open neutral, miswired pedestal, reverse polarity and elevated ground voltage. 2 minute 15 second reset delay protects A/C compressor. Convenient plug handles. Weather resistant. 120V, 30A, 10/3 AWG cord, 2,450 Joules of power surge protection.