Reliable surge protection circuit: 3-level complementary surge protection circuit, composed of TMS, MOV (metal oxide current resistor), GDT (gas discharge tube), comparable to other of 1-level MOV (metal oxide current resistor) electrical Surge protection circuits protect your equipment faster and more reliably.Power Protection: LED Diagnostics, Open Ground, Open Neutral and Reverse Polarity Detection, Lost Wire Base Indication, Surge Fault Indicator. Designed for outdoor use, weatherproof, weatherproof cover assembly.All Weather Design - This surge protector is designed with a waterproof cover to protect the circuit from rain, wind, sandstorms. Beautifully designed details reduce the risk of short circuits or firesEasy-to-use handle design: sturdy pull handle, locking bracket, sturdy Lexan housing, brighter 3-color LED indicatorSUPERIOR QUALITY: Made of high quality material, this surge protector is the best protection for your RV.Product size: Total about 40.64 cm. The wire is about 9 inches (about 22.9 cm) long and about 0.6 inches (about 1.5 cm) in diameter.NOTE: This surge protector is a must-have for protecting your RV power supply. To protect your RV, replace it with a new RV once it has been directly overpowered by lighting or damaged after a super surge. So it's better to have 2 on your trip.Plug Type:US Plug,it applies to Canada, India,Mexico, Thailand, the United States, the Philippines,Taiwan and so on.color:YellowMaterial:PVCPackage Contents:1 x RV Surge ProtectorOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.