Surge Guard Portable Model With LCD Display. 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 on all legs (30 Amp one leg and 50 Amp legs one and two). LCD display will also show faults (when occurred) for reverse polarity (miswired pedestal, elevated ground voltage). 128 second reset delay protects AC compressor. Convenient plug handles. Weather resistant. Antenna 11615 is 120V, 30 Amp, 5 inch W x 23 inch L x 4 inch D; 10/3 AWG Cord, 2450 Joules (Not for sale in Canada).