Reliable Surge Protector Circuit: 3 level complementary Surge Protector Circuit which composed of TVS, MOV (metal oxide varistor), GDT (gas discharge tube), with minimum 2100J energy absorbing capacity, could protect your devices much more quickly and reliably than other 1 level MOV(metal oxide varistor) Surge Protection Circuits.Power Guard: Diagnostic LED, Open ground, Open neutral &amp; reverse polarity detection, Miswired pedestal indication, Surge failure indicator. Designed for outdoor use, Weather resistant, All weather shield assembly.All Weather Resistant Design&mdash;&mdash; This Surge Protector was designed with waterproof cover which protects the circuit from rain, wind, sandstorm. The detail cover is a nice design to reduce risk of short circuit or fireDesigned with Easy To Use Handles: Rugged Pull Handle, Locking Bracket, Tough Lexan Housing, Brighter 3-Color LED IndicatorsBest Value: Made of high quality rubber and pure copper material, the Surge Protector must be a great guard for your Rv. Eco-Friendly compact Package &amp; Value itself.<img data-srcid="-" src="https://image.doba.com/dgd1-RLqevzHQrYJD/30-amp-smart-rv-surge-protector-with-waterproof-cover-all-in-1-circuit-analyzer-power-guard-for-rv.jpg" alt="dropship 30 Amp Smart RV Surge Protector with Waterproof Cover All-in-1 Circuit Analyzer Power Guard for RV" />Amperage:&nbsp;&nbsp;30 AmpsVoltage: 125 Volts