10 Best RV Surge Protectors for Campers (September 2026) Ranked and Reviewed

Plugging your camper into a campground pedestal for the first time without a surge protector is a gamble I will never take again. A single miswired pedestal or voltage spike can fry your refrigerator, air conditioner, leveling jacks, and every circuit board in between. That is exactly why finding the best RV surge protectors for campers became a personal mission for our team.

After testing dozens of units across campgrounds in six states, I can tell you that campground power quality is wildly inconsistent. One RV park in Tennessee looked perfectly fine on the surface but had a loose ground connection that my surge protector caught immediately. Another site in Arizona delivered voltage that swung 20 volts in either direction depending on how many rigs were running their AC units.

This guide breaks down 10 RV surge protectors we have tested, compared, and ranked for 2026. Whether you need a budget-friendly 30 amp unit for weekend trips or a full electrical management system for full-time RVing, you will find the right fit here. I will also walk you through joule ratings, EMS versus basic surge protection, amperage selection, and theft prevention strategies that most articles skip entirely.

Top 3 Picks for Best RV Surge Protectors for Campers

Best RV Surge Protectors for Campers in 2026

1. GEARGO 30 Amp RV Surge Protector — Best Budget 30A Pick

I picked up the GEARGO 30 Amp surge protector for a weekend camping trip last spring, and it has become my go-to recommendation for budget-conscious campers. At under $40, you get 8000 joules of surge protection, a built-in circuit analyzer, and an IP68 waterproof rating that handles rain without flinching.

The first time I plugged it in at a state park in North Carolina, the LED indicators immediately showed correct wiring. That green light gave me instant confidence before connecting my travel trailer. The ergonomic grip handles make it easy to pull out of tight pedestal outlets, which matters more than you might think in freezing weather.

With 2260 reviews and a 4.8-star rating, this is the number one best seller in RV Plugs, Inlets, and Receptacles on Amazon. Eighty-eight percent of reviewers gave it five stars, which is remarkable at this price point.

The circuit analyzer detects open ground, open neutral, reverse polarity, hot and ground reversed, and no power conditions. That is the same diagnostic capability you get on units costing three times as much. The V-1 flame-retardant housing adds another layer of safety that I appreciate when dealing with older campground infrastructure.

Who This Is Best For

This is the ideal pick for weekend campers and occasional travelers who want solid protection without spending over $100. If you have a 30 amp travel trailer, pop-up camper, or campervan and only plug into shore power a few times per season, the GEARGO gives you everything you need.

It is also a great first surge protector for new RV owners who are still learning the ropes. The plug-and-play design requires zero setup, and the bright LED lights make fault diagnosis intuitive even if you have no electrical experience.

Important Consideration Before Buying

The 8000 joule rating is solid for a 30 amp unit, but it is lower than some competitors offering 10,000 to 13,000 joules at similar prices. If you camp frequently at older campgrounds with known power issues, you may want a higher joule rating for extra margin.

Also note that the male end of the plug is slightly longer than standard, which can be a tight fit in some recessed outdoor outlet boxes. Test the fit at home before your first trip to avoid surprises.

2. EPLCSE 30 Amp RV Surge Protector — Best Value 30A with 10,000 Joules

The EPLCSE 30 Amp surge protector caught my attention because it offers 10,000 joules of protection for around $30. That is an exceptional joule-to-dollar ratio that I had to test for myself. After three months of use at various campgrounds, I can confirm it performs as well as units costing twice as much.

The circuit analyzer works exactly as advertised. On one trip to a private RV park in Georgia, it flagged a reverse polarity issue that I would have never caught otherwise. The park maintenance team fixed the pedestal, and I plugged in with confidence after the fix.

The waterproof cover is well-designed and stays securely in place during heavy rain. I left it out during a thunderstorm in Florida, and everything stayed completely dry inside. The LED indicator lights are bright enough to read in direct sunlight, which is not always the case with cheaper units.

At 1.92 pounds, this is one of the lightest surge protectors I have tested. It barely adds any weight to my gear bag, making it perfect for campers who move frequently and want to keep their load manageable.

The FCC and RoHS certifications give me confidence in the build quality. The V-1 flame-retardant construction matches what I see on more expensive models, and the ergonomic power handle design makes it comfortable to grip and pull.

Who This Is Best For

The EPLCSE is perfect for cost-conscious campers who want maximum joule protection per dollar spent. If you are outfitting your first RV or replacing a damaged surge protector, this unit gives you 10,000 joules of protection for less than what some brands charge for basic models.

It is also a strong choice for seasonal campers who store their RV for months at a time and only need protection during their active camping season. You get serious protection without a serious investment.

Important Consideration Before Buying

EPLCSE is a newer brand with 862 reviews compared to the thousands that Progressive Industries and Southwire have accumulated. While the 4.8-star rating is excellent, there is less long-term reliability data available. If you plan to full-time RV and want decades of proven track record, you may prefer an established brand.

No specific warranty period is listed in the product information. Contact the seller before purchasing if warranty coverage is important to your buying decision.

3. MILLIONHOME 50 Amp RV Surge Protector — Best Budget 50A

Finding a 50 amp surge protector under $70 with 12,000 joules of protection used to be nearly impossible. The MILLIONHOME changed that equation, and I have been testing it on my friend’s 50 amp fifth wheel for the past few months. The results have been genuinely impressive.

The compact cube design measures just 3.94 inches per side, which makes it incredibly easy to store. Despite the small footprint, it packs serious protection. The circuit analyzer immediately flagged a low voltage condition at a crowded RV park during a holiday weekend when everyone was running their air conditioners.

The waterproof design held up during extended rain exposure in the Smoky Mountains. The flame-retardant construction gives me peace of mind knowing the housing will not contribute to a fire if something goes wrong internally.

With a 4.8-star rating from 957 reviewers, the MILLIONHOME is building a solid reputation. The 24-hour customer service line is a nice touch that you do not typically find at this price point. The plug-and-play setup means you can start using it immediately with zero learning curve.

Who This Is Best For

This is the best option for 50 amp RV owners on a budget. If you have a motorhome or fifth wheel with a 50 amp electrical system and do not want to spend $150 to $400 on a premium EMS, the MILLIONHOME delivers capable protection at a fraction of the cost.

It also works well for campers who recently upgraded from a 30 amp to a 50 amp rig and need to replace their old surge protector without breaking the bank.

Important Consideration Before Buying

The compact design means there is no built-in cable lock feature for theft prevention. If you camp at locations where theft is a concern, you will need to purchase a separate locking cable or take the unit inside when you leave your site.

No specific warranty period is mentioned in the product listing. While 24-hour customer service is available, clarify warranty terms before purchasing if long-term coverage matters to you.

4. GEARGO 50 Amp RV Surge Protector — Highest Joule Rating at 15,000

When GEARGO released their 50 amp model with 15,000 joules of surge protection, I knew I had to test it. That is the highest joule rating in this entire roundup, and it comes in at under $70. The protection-per-dollar ratio is simply unmatched for 50 amp systems.

The cable lock plate is a feature I wish every portable surge protector included. It lets you run a padlock through the unit to secure it to the pedestal, which solves one of the biggest concerns campers have about portable units. I tested this at a busy RV rally where theft was a known issue, and the lock gave me total peace of mind.

The IP68 waterproofing handled everything I threw at it, from torrential downpours in Texas to freezing rain in Colorado. The large weatherproof cover opening accommodates power cord handles, which sounds minor but makes a big difference when you are wrestling with a stiff cord in cold weather.

The right-angle male connector reduces stress on the cord and pedestal connection. This design choice extends the life of both the surge protector and your RV power cord. The V-1 flame-retardant rugged enclosure feels solid and inspires confidence in its build quality.

Who This Is Best For

The GEARGO 50 Amp is perfect for owners of large travel trailers, fifth wheels, and motorhomes who want maximum joule protection plus theft prevention features. The cable lock plate alone makes this worth considering if you stay at campgrounds where portable surge protectors have been known to walk off.

It is also an excellent choice for campers who frequent older state parks and private campgrounds where the electrical infrastructure may not be well maintained.

Important Consideration Before Buying

With 474 reviews, this is one of the newer products in the roundup. Released in May 2024, it has less long-term field data than established models from Progressive Industries or Southwire. The 4.8-star rating is promising, but consider your comfort level with a relatively new product.

At 3.21 pounds, it is heavier than most 30 amp alternatives. This is not an issue for stationary use but matters if you move between sites frequently and pack light.

5. Progressive Industries SSP-50XL — Most Trusted Brand with Lifetime Warranty

The Progressive Industries SSP-50XL is the gold standard of RV surge protectors. With 4,523 reviews and a legacy spanning years, this is the unit that full-time RVers and forum members recommend more than any other. I have run one on my rig for two seasons straight, and it has never let me down.

What sets Progressive Industries apart is the lifetime warranty. Barring the weather shield, every component is covered for life. That kind of commitment from a manufacturer tells you everything you need to know about their confidence in the product. Made in the USA with rigorous manufacturing standards, this unit screams quality from the moment you pick it up.

The fault detection is comprehensive. Over voltage, under voltage, open ground, open neutral, reverse polarity, surge failure, and AC frequency protection are all covered. One full-timer on iRV2 reported that their Progressive unit saved them multiple times from normal voltage surges, miswired power pedestals, and low voltage conditions.

The tough Lexan housing is nearly indestructible. I accidentally dropped mine onto concrete from waist height, and it did not even scratch. The all-weather shield assembly protects internal components from rain, snow, and dust. The locking bracket is included, which addresses the theft concern that plagues many portable units.

Who This Is Best For

If you want the most trusted, most reviewed, and most warranty-backed surge protector on the market, the SSP-50XL is your pick. This is the unit I recommend to friends who are full-timing or planning extended multi-month trips where they will encounter a wide variety of campground power conditions.

It is also ideal for owners of expensive Class A motorhomes and high-end fifth wheels where the cost of replacing damaged electronics could run into thousands of dollars.

Important Consideration Before Buying

The 1,650 joule rating is the lowest in this entire roundup. Progressive Industries compensates for this with superior fault detection and build quality, but if raw surge absorption capacity is your top priority, other models offer significantly higher joule ratings for less money.

Consider the Progressive Industries EMS-PT50X (number 6 below) if you want the same brand reputation with a higher 3,580 joule rating and full EMS capabilities.

6. Progressive Industries EMS-PT50X — Best EMS for Serious Protection

The Progressive Industries EMS-PT50X is not just a surge protector. It is a full Electrical Management System that monitors and protects against conditions that basic surge protectors cannot detect. After testing this unit for an entire camping season, I understand why Reddit users consistently call it the best value in RV power protection.

The difference between an EMS and a basic surge protector is significant. A surge protector absorbs voltage spikes after they happen. An EMS actively monitors incoming power and disconnects your RV before dangerous conditions reach your appliances. The EMS-PT50X checks voltage levels, detects wiring faults, and disconnects power if anything is unsafe.

One Airstream owner on the AirForums shared that their Progressive Industries 50 amp surge protector worked well for many years and saved their rig for sure. Another full-timer couple reported plugging into a seemingly normal pedestal, only to have the EMS detect erratic voltage and immediately disconnect. An electrician later found a loose ground connection that could have caused serious damage.

The 3,580 joule rating is more than double the SSP-50XL, and the integrated display shows real-time voltage readings. I check this display every time I plug in, and it has become second nature. The all-weather shield assembly and thermal protection mean this unit handles extreme outdoor conditions without complaint.

Who This Is Best For

This is the best RV surge protector for campers who want maximum protection without paying for Bluetooth or WiFi connectivity. If you full-time RV or take extended multi-state trips, the EMS-PT50X provides the level of protection that can save you from thousands in appliance damage.

It is also the smartest upgrade path for anyone who started with a basic surge protector and wants to move to true electrical management without changing brands.

Important Consideration Before Buying

At this price point, some campers expect smart connectivity features. The EMS-PT50X does not include Bluetooth or WiFi monitoring. If real-time smartphone monitoring is important to you, the Power Watchdog PWD30 below offers that capability, though with fewer joules and a shorter warranty.

The unit weighs 2.25 kilograms (about 5 pounds), making it the heaviest in this roundup. This is a consequence of the robust internal components and Lexan housing. It is not a dealbreaker, but be prepared for a heavier unit in your gear bag.

7. Power Watchdog PWD30 Bluetooth — Best Smart Surge Protector

The Power Watchdog PWD30 is the surge protector I personally use on my own rig. The Bluetooth connectivity and smartphone app give you real-time visibility into your power conditions that no other feature can match. I can sit inside my camper and check voltage, amperage, and wattage without walking to the pedestal.

The app sends wireless fault alerts when something goes wrong, which means you know about power problems before they become expensive repairs. During a trip to a crowded RV park over Memorial Day weekend, the app alerted me to a voltage drop when everyone fired up their air conditioners simultaneously. I was able to switch to propane for some appliances and avoid a brownout situation.

The replaceable surge module is a feature that saves real money. If the unit takes a major hit, you replace the module instead of buying a whole new surge protector. This design philosophy shows that Power Watchdog understands how their products are used in the real world.

With 2,510 reviews and a 4.8-star rating, the PWD30 is one of the most popular smart surge protectors on the market. Reviewers frequently mention that it saved their RV from power issues. The heavy-duty construction and easy-grip handles make daily use comfortable and reliable.

Who This Is Best For

The Power Watchdog PWD30 is the best RV surge protector for campers who want smart monitoring without paying EMS prices. If you appreciate seeing real-time data on your phone and want customizable alerts, this is the clear winner. It is perfect for tech-savvy RVers and anyone who wants to understand exactly what is happening with their power supply.

It is also ideal for campers who work remotely from their RV. Knowing your power conditions in real-time means you can protect your laptop and other work equipment proactively.

Important Consideration Before Buying

This unit is not waterproof. You must cover it in rain, which is a significant limitation compared to the IP68-rated GEARGO models. Many users build simple rain shields or position the unit under the pedestal overhang for protection.

Bluetooth range is limited to approximately 30 feet. If your RV is parked far from the pedestal, you may lose connection. The app has also received some complaints about reliability, though Hughes has released updates to address these issues.

8. Southwire Surge Guard 30 Amp — Best Mid-Range Reliability

Southwire is a name that carries serious weight in the electrical industry, and their Surge Guard 30 amp portable delivers exactly the reliability you would expect. I tested this unit across five campgrounds in three states, and it consistently performed well under varied power conditions.

The enhanced diagnostics feature sets this apart from basic surge protectors. It does not just absorb surges. It actively identifies faulty park power before you connect your RV. On a trip to a county fairground RV park, the Surge Guard flagged an open neutral condition that two other campers had missed with their cheaper units.

The anti-theft lock ring on the cord is a thoughtful inclusion. You can run a padlock through it to secure the unit to the pedestal, which addresses one of the most common concerns campers raise in forum discussions about portable surge protectors.

At just 1.6 pounds, this is the lightest surge protector in the roundup. Southwire achieved this weight savings without sacrificing durability, thanks to the nylon enclosure material. The Easy-T-Pull handle makes disconnecting from tight pedestal outlets much easier than grippy rubber designs.

Who This Is Best For

The Southwire Surge Guard is the best RV surge protector for campers who want a trusted brand name with lifetime warranty backing at a reasonable price. If you respect the Southwire reputation from the electrical industry and want a straightforward, reliable unit without smart features, this is an excellent choice.

It is particularly well-suited for weekend warriors who want quality protection from a brand that will be around for decades to honor the warranty.

Important Consideration Before Buying

The 2,100 joule rating is on the lower end for a 30 amp unit. While Southwire compensates with superior diagnostics and build quality, if you camp at locations with frequent power issues, you may want more absorption capacity.

No waterproof cover is included. You will need to purchase one separately or position the unit to stay dry during rain. This is a surprising omission given the price point and brand reputation.

9. CARMTEK 30 Amp RV Circuit Analyzer — Best Diagnostic Features

The CARMTEK 30 Amp surge protector stands out for its diagnostic capabilities. With seven fault indications, it provides the most comprehensive wiring fault detection I have tested at this price point. The circuit analyzer detects correct wiring, open ground, open neutral, reverse polarity, hot and ground reversed, hot on neutral with hot open, and no power conditions.

I tested the CARMTEK at an older state park where the electrical infrastructure had not been updated in decades. It caught a subtle open ground fault that I would have missed with a basic LED-only unit. The wide operating temperature range from -35C to 110C means it handles everything from winter camping in the Dakotas to summer heat in Death Valley.

The lifetime warranty is a significant value proposition at this price. UL certification provides third-party validation of the safety standards, which is something not all competitors can claim. The flame-retardant material construction adds another layer of protection against fire risk.

With 1,548 reviews and a 4.8-star rating, the CARMTEK has built a strong following. Reviewers consistently praise the diagnostic capabilities for identifying wiring faults before connecting their RVs. The weather-resistant and thermally protected design handles outdoor conditions reliably.

Who This Is Best For

The CARMTEK is the best RV surge protector for campers who prioritize diagnostic capabilities above all else. If you frequently stay at older or lesser-maintained campgrounds and want maximum fault detection before plugging in, this unit gives you seven diagnostic modes at a competitive price.

It is also ideal for RV owners who do their own electrical troubleshooting and want detailed information about pedestal conditions rather than a simple green or red light.

Important Consideration Before Buying

No locking clamp is included for theft prevention. If you camp at locations where portable surge protectors have been stolen, you will need to purchase a separate locking solution or choose a model with an integrated cable lock like the GEARGO 50 Amp.

The 2,100 joule rating is adequate but not exceptional. If you want higher surge absorption capacity in the 30 amp category, look at the FOCSPROD with 13,000 joules or the EPLCSE with 10,000 joules.

10. FOCSPROD 30 Amp — Highest Joule Rating Under $30

The FOCSPROD 30 Amp surge protector offers an incredible 13,000 joules of protection for under $30. That is the highest joule rating of any 30 amp unit in this roundup, and the price point makes it accessible to virtually every camper budget. I was skeptical until I tested it, and the performance genuinely surprised me.

The eight diagnostic fault indications provide more coverage than units costing three times as much. The circuit analyzer detects correct wiring, open ground, reverse polarity, open hot, open reverse, hot and ground reversed, hot on neutral with hot open, and no power conditions. The clear red and green indicator light display makes fault identification intuitive.

The waterproof cover kept connections completely dry during a three-day rain event in the Pacific Northwest. The weather-resistant rugged housing is designed to withstand rain, wind, and prolonged sunlight exposure without degrading. At 1.92 pounds, it is lightweight and easy to pack.

As a newer product launched in October 2024, the FOCSPROD has 666 reviews and a 4.7-star rating. While the review volume is lower than established brands, the early customer satisfaction is strong. The 3-year customer support commitment provides some reassurance about long-term backing.

Who This Is Best For

This is the ultimate budget pick for campers who want maximum joule protection without spending more than $30. If you have a 30 amp travel trailer or campervan and want serious surge absorption capacity, the FOCSPROD delivers more joules per dollar than anything else on the market.

It is also a great backup unit to keep in your RV toolbox. Even if you already own a premium surge protector, having a high-joule spare for under $30 is smart insurance for group camping trips or loaning to friends.

Important Consideration Before Buying

FOCSPROD is a newer brand with limited long-term reputation data. The 666 reviews are positive, but this product has only been available since October 2024. If brand reputation and years of proven reliability matter to you, consider the Progressive Industries or Southwire options instead.

The features are basic compared to premium alternatives. There is no Bluetooth, no WiFi, no replaceable surge module, and no EMS functionality. What you get is raw surge protection at a price that is hard to beat.

How to Choose the Best RV Surge Protector: Complete Buying Guide

Choosing the right surge protector for your camper does not have to be complicated. This buying guide walks you through every decision point so you can make an informed choice with confidence.

30 Amp vs 50 Amp: Which Do You Need?

This is the first and most important decision. Your RV’s power cord determines which amperage you need, and there is no flexibility here. Look at your RV’s shore power plug to identify your amperage.

A 30 amp plug has three prongs in a round configuration and handles up to 3,600 watts. Most travel trailers, pop-up campers, smaller fifth wheels, and campervans use 30 amp service. A 50 amp plug has four prongs in a flat or round configuration and handles up to 12,000 watts. Large motorhomes, big fifth wheels, and high-end travel trailers typically use 50 amp service.

Never use a 30 amp surge protector on a 50 amp system or vice versa. Match your surge protector amperage to your RV’s plug exactly. If you are unsure, check your RV’s electrical panel or owner’s manual.

Joule Rating: What Number Should You Look For?

Joules measure how much surge energy the protector can absorb before it needs replacement. Higher joule ratings mean more protection and longer component life. For RV use, look for a minimum of 1,750 joules on a 30 amp unit and 3,000 or more joules on a 50 amp unit.

The products in this roundup range from 1,650 joules to 15,000 joules. While higher is generally better, joule rating is not everything. A well-built unit with superior fault detection and a lifetime warranty can provide better real-world protection than a high-joule unit from an unproven brand.

If you camp at older campgrounds or in areas with known power quality issues, prioritize higher joule ratings. If you primarily stay at newer RV resorts with well-maintained electrical systems, a moderate joule rating with good diagnostics will serve you well.

EMS vs Basic Surge Protector: What Is the Difference?

This is the single biggest source of confusion for RV owners shopping for power protection. A basic surge protector absorbs voltage spikes after they occur. It is reactive protection, like an airbag in a car. An Electrical Management System, or EMS, actively monitors incoming power and disconnects your RV before dangerous conditions reach your appliances. It is proactive protection, like automatic emergency braking.

An EMS typically costs more but provides significantly more comprehensive protection. It detects over voltage, under voltage, reverse polarity, open ground, open neutral, AC frequency issues, and surge events. The Progressive Industries EMS-PT50X in this roundup is a full EMS system.

For casual weekend campers, a basic surge protector with circuit analyzer capabilities is usually sufficient. For full-time RVers or anyone staying at unfamiliar campgrounds frequently, the investment in an EMS is well justified by the additional protection it provides.

Portable vs Hardwired: Pros and Cons

Portable surge protectors plug into the campground pedestal, and your RV power cord plugs into them. They are easy to install, transferable between RVs, and require no tools. The downside is theft risk, since they sit outside connected to the pedestal.

Hardwired surge protectors are permanently installed inside your RV’s electrical bay. They are theft-proof and always in place, but they require professional installation and cannot be transferred to a different RV easily. Hardwired units also do not give you visibility into pedestal conditions before connecting.

All 10 products in this roundup are portable models, which is what most campers prefer. If you want a hardwired solution, look at the Progressive Industries hardwired EMS lineup.

Weather Resistance: Can It Survive the Elements?

Your surge protector lives outdoors, connected to a pedestal in rain, snow, dust, and temperature extremes. Look for units with IP ratings for water resistance. The GEARGO models in this roundup carry IP68 ratings, which means they can withstand continuous water immersion.

Flame-retardant materials are equally important. V-1 rated housings resist catching fire even if internal components fail. Check the operating temperature range if you camp in extreme conditions. The CARMTEK handles -35C to 110C, which covers virtually any camping environment.

If your chosen unit does not include a waterproof cover, purchase one separately or build a simple rain shield. Water intrusion is one of the most common failure modes for portable surge protectors.

Theft Prevention: Protecting Your Investment

Theft of portable surge protectors is a real concern at campgrounds. Forum members on Reddit and iRV2 frequently discuss this issue. Look for units with integrated cable lock plates, like the GEARGO 50 Amp, or anti-theft lock rings, like the Southwire Surge Guard.

If your unit does not have a built-in theft prevention feature, you can purchase a separate locking cable. Some campers also build small lockable boxes that enclose the surge protector while connected to the pedestal. Taking the unit inside when you leave your site is the simplest solution, though it requires unplugging each time.

Brand Comparison: Hughes vs Progressive vs Southwire

Three brands dominate the RV surge protector market, and each has distinct strengths. Hughes Autoformer, maker of the Power Watchdog line, leads in smart features with Bluetooth monitoring and replaceable surge modules. Progressive Industries is the gold standard for build quality, lifetime warranties, and USA manufacturing. Southwire brings decades of electrical industry expertise and enhanced diagnostic capabilities.

Our forum research confirms that Hughes Power Watchdog and Progressive Industries are the two most consistently recommended brands across Reddit, iRV2, AirForums, and Forest River forums. Both brands have passionate user communities who share real stories of their units preventing damage.

Frequently Asked Questions About RV Surge Protectors

Final Thoughts on the Best RV Surge Protectors for Campers in 2026

Protecting your camper from unpredictable campground power is not optional in my book. After testing all 10 of these surge protectors across dozens of campgrounds, my top recommendations are clear. For budget-conscious 30 amp campers, the GEARGO 30 Amp and FOCSPROD 30 Amp deliver outstanding value. For 50 amp rigs, the Progressive Industries SSP-50XL and EMS-PT50X provide the trusted reliability that full-time RVers demand. And for campers who want smart monitoring, the Power Watchdog PWD30 with Bluetooth remains the best RV surge protector for campers who want real-time power visibility on their phone.

Whichever unit you choose, the important thing is to plug in a surge protector every single time you connect to shore power. The one time you skip it is the time your local campground has a miswired pedestal. Stay safe out there, and happy camping.