Plastic Made in the USA or Imported PORTABLE SURGE PROTECTION KIT: Includes receptacle tester for wiring fault detection; surge module attaches to detachable power cord for added protection; supports 50 Amp systems SURGE MODULE RATINGS: 50 Amp module supports up to 45,000 Amp spike and 2,030 joules; helps provide robust surge protection for RV systems WIRING FAULT INDICATOR: Detects open ground, open neutral, and open hot; helps confirm safe pedestal wiring before RV hookup WIRING FAULT INDICATOR: Tests for hot and neutral reversed and hot and ground reversed; helps confirm safe pedestal wiring before RV hookup SURGE INDICATOR ALERT: Includes indicator to notify when surge protection is depleted; helps maintain awareness of protection status