Progressive Industries 50 AMP RV Smart Surge Protector

50 AMP Portable Surge ProtectorProgressive Industries RV Smart Surge Protector with color LED indicators Detects conditions of: reverse polarity, open ground, open neutral Dual line polarity tester Portable, just plug in! Surge Protector; Used As Portable RV Surge Protector; 50 Amp; With Fault Indicator Light; With Weather Resistance; With Plug Head Handle; 5-Mode/ 1650 Joules; With Built In Polarity Tester/ 3 Color LED Indicators/ Polarity Indication/ Open Ground Indication/ Lost And Open Neutral Indication