UL listed surge protector designed to handle the high power consumption demands of RVers. Analyzes circuits to identify power supply status. Checks for open ground, open neutral, correct polarity, and NEW reversed lines/ground. Features surge protection indicator and NEW thermal sensor to indicate overheating plug/receptacle. Weather resistant with a NEW rain-proof cover.Smart Technology Compatible: Not Compatible With Smart TechnologyVoltage Regulation: 120 VoltAmpere Rating: 30 AmpAutomatically Reconnects: YesUsed To: Handles The High Power Consumption Demands Of RVWith Fault Indicator: YesWith Plug Head Handle: Yes