Progressive Industries earns a second spot on our list with its SSP30 surge guard. Weighing in at less than two pounds, and small enough to fit in your glove compartment, the guard’s compact and highly portable design sets it apart from other choices on the market.
Don’t be fooled by its small size, however – the Smart Surge is a really useful tool. By simply connecting the device to the power pedestal at a campsite, you can find out whether the power source is safe for your RV. Although it’s not the toughest options on our list, the guard is suitable for outdoor use, and can withstand surges of 825 joules. Customers say that the device has saved them from the threats of miswiring and insufficient grounding more than enough to pay for itself – it also comes with a full year’s warranty. Bear in mind that this model is suitable for 30 Amp RV plugs only.