Designed to handle the high-power consumption demands of today's RV campers, the 50A Portable Surge Guard analyzes circuits to identify power supply status. This unit checks for open ground, open neutral, correct polarity, and reversed lines/ground. The weather-resistant Surge Guard features a surge protection indicator and thermal sensor to indicate overheating plug/receptacle. High-gauge brass construction provides years of reliable use. Plugs directly into the power pedestal with no pigtail for plugging in the cord. Features• Handles the high-power consumption of campers• Analyzes circuits to identify power status• Checks for open ground, correct polarity, and more• Convenient Easy-T-Pull plug handles• High-gauge brass construction Checks for open ground, open neutral, correct polarity, & reverse lines/ground Surge protection indicator & thermal sensor High-gauge brass construction | Southwire Portable Surge Guard with Diagnostics, 50-Amp