Features： 1、Enhanced Safety and Practical: The RV adapter circuit analyzer is used to detect whether electrical piles in campground are wired wrong, ensure the safety of your electronics, protecting your RV from power surges. 2、Easy to Use: Plug circuit analyzer into the receptacle before plugging in the camper cord. The LED light illuminate to show power status, when the indicator light shows the wrong connection, it will remind you, avoid your RV from sustained permanent damage. 3、Premium Material: The housing of this RV surge protector uses flame retardant material, and the plug is forged from intergrated copper sheet, ensuring excellent conductivity, safety and avoid short circuit, ensure your using security. 4、Convenient Conversion: 30 Amp male to 30 Amp female adapter allows you to convert the power at campground to fit for your 30 Amp RV, a easy power conversion, worry free about the mismatching power at campground, more stable and safer wire connection. 5、Portable and Ergonomic Design: The contoured shape of this circuit analyzer surge protector ensures easy removal from outlet, compact and lightweight for easy carrying, ergonomic grip design to increase friction, making you plugging and unplugging easier, ideal for your camping travel. Specification： Item Type: RV Circuit Analyzer Surge Protector Voltage: AC125V Current: 30Amp Surge Guard: 1050J Fitment: Suitable for RV Trailer Package List： 1 x?RV?Surge?Protector