For RVs requiring 50-amp service, this portable surge protector analyzes your campground’s electrical supply and shields your rig from dangerous power surges and wiring faults. With 4,200 joules of protection and dual-voltage (120/240V) capability, it handles both standard and high-amperage RV systems. Built-in fault detection alerts you to wiring problems before they cause damage to your main panel or appliances.

• 50 amp 120/240-volt protection
• Detects faulty park wiring conditions
• 4,200 joule surge suppression
• Single outlet with fault indicator
• Portable with carrying handle