This whole-motorhome surge and spike protector from SurgeGuard now offers more than twice the rated protection of earlier models. Easy to see LCD display uses plain, easy to understand language to keep you informed of status at a glance. Built-in intelligence lets these units reset automatically at power restoration. Each now shuts off power in the event of an open ground or thermal line/load over-temperature condition, as well as in the event of an open neutral, low (under 102 volts) and high (over 132 volts) voltage or reverse polarity to protect your RV and its electrical components from damage and fire. Continuously monitors for voltage and amp draw (RMS) and reverse polarity (miswired pedestal or elevated ground voltage). Built-in 128-second reset delay protects air conditioner compressors. Two-light LED backup indicators for power and faults. More compact design for easier storage. Easy pull handles on connectors for safety and convenience.