The Progressive Industries 50-Amp Smart Surge Protector provides surge protection at your RV shore Power box for your whole RV. It also has a built-in polarity tester to check the status of your power source before you use it, and a surge indicator that denotes the condition of the surge protector. Its smooth, compact & portable construction makes it so simple to use. There is no installation required. Use outdoors only.
4.75"W x 12.5"L x 3"H.
1 year warranty.