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The Progressive Industries EMS-PT50X is a portable, plug-and-play Electrical Management System that sits between shore power and your RV's power cord, watching for voltage fluctuations, surges, and miswired or reversed-polarity pedestals before they reach your RV's electrical system.
It uses onboard microprocessors to continuously monitor incoming power and will cut power to the RV if it detects a fault, helping protect appliances and electronics from the kind of damage a bad campground pedestal can cause. The scrolling digital display shows real-time voltage and fault status, and the weather-resistant housing with a secure locking bracket and heavy-duty pull handle is built to live outside at the pedestal.
Connects inline between the pedestal and your RV's power cord for portable, campsite-to-campsite protection.