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  1. RV Surge Protector
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  3. 50 Amp
  4. Surge Protector
  5. Hardwired
  6. Automatic Shutoff
  7. Bluetooth Monitoring
  8. WiFi Monitoring
Power Watchdog Surge Protector with Bluetooth, WiFi, and Emergency Shut Down - Hardwired - 50 Amp
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Hughes Autoformers

Power Watchdog Surge Protector with Bluetooth, WiFi, and Emergency Shut Down - Hardwired - 50 Amp

Part Number: HU82VR
749 Reviews | 18 Questions
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$369.99
Retail:$399.95
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 RV Surge Protector
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hughes autoformers rv surge protector
hughes autoformers rv surge protector power watchdog with bluetooth wifi and emergency shut down - hardwired 50 amp
hughes autoformers rv surge protector 50 amp hu82vr
hughes autoformers rv surge protector hardwired hu82vr
hughes autoformers rv surge protector 50 amp hardwired hu82vr
hughes autoformers rv surge protector
hughes autoformers rv surge protector 50 amp hardwired
hughes autoformers rv surge protector 50 amp hu82vr
hughes autoformers rv surge protector 50 amp
hughes autoformers rv surge protector hardwired power watchdog with bluetooth wifi and emergency shut down - 50 amp
hughes autoformers rv surge protector 50 amp hardwired hu82vr
hughes autoformers rv surge protector hardwired hu82vr
hughes autoformers rv surge protector 50 amp hardwired
hughes autoformers rv surge protector power watchdog with bluetooth wifi and emergency shut down - hardwired 50 amp
hughes autoformers rv surge protector hardwired hu82vr
hughes autoformers rv surge protector hardwired power watchdog with bluetooth wifi and emergency shut down - 50 amp
hughes autoformers rv surge protector 50 amp power watchdog with bluetooth wifi and emergency shut down - hardwired

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This hardwired surge protector alerts you instantly of voltage problems and automatically cuts power to your RV when a fault is detected. Built-in Bluetooth and Wi-Fi monitor your system from anywhere around the globe via a smartphone app. Great Prices for the best rv surge protector from Hughes Autoformers. Power Watchdog Surge Protector with Bluetooth, WiFi, and Emergency Shut Down - Hardwired - 50 Amp part number HU82VR can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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Hughes Autoformers RV Surge Protector - HU82VR

  • 50 Amp
  • Surge Protector
  • Hardwired
  • Automatic Shutoff
  • Bluetooth Monitoring
  • WiFi Monitoring
  • Hughes Autoformers

This hardwired surge protector alerts you instantly of voltage problems and automatically cuts power to your RV when a fault is detected. Built-in Bluetooth and Wi-Fi monitor your system from anywhere around the globe via a smartphone app.


Features:

  • 50-Amp surge protector prevents damage to your RV from power spikes and sustained high or low voltage
  • Emergency Power Off cuts connection in the event of an error to protect electronics and appliances
    • Shuts down if current drops below 104V or raises above 132V
    • Also cuts power for an open ground, open neutral, reverse polarity, open circuit, or mis-wired connections
    • Automatically turns back on once power is stable for 90 seconds
  • Free Smartphone app for iOS and Android connects via built-in Bluetooth and Wi-Fi to monitor your system
    • Quickly pair using the QR code on front of device
    • Read volts, amps, and watts in real time to keep an eye on your power draw
    • Get push notification when voltage is outside of acceptable, customizable ranges
  • 4-Second start-up delay gets you up and running faster than other brands
    • Delay makes sure power is safe to use before flowing normally
    • Audible click tells you the surge protector is on
  • Surge protection module offers 6,100 joules of protection in case of lightning strike
    • Can be replaced once it wears out - no need to replace the entire unit
  • Fault history is recorded up to 10 faults
    • Time stamp provides detailed information on shut downs
  • Easy-to-see indicators show you if there's a problem and what that problem is
    • Watchdog logo illuminates white if power is steady and red if there's an error
    • Error code can be compared to legend on the side of the unit
    • Lights can be dimmed via the mobile app
  • Hardwired installation inside your RV
    • Removes the extra steps of using a portable unit at a park power pedestal
    • Protects the unit from the elements


Specs:

  • Amps: 50 amps
  • Energy dissipation: 6,100 joules
  • Limited lifetime warranty


PWD50EPOHW Power Watch Dog Gen II Surge Spike Protector with Bluetooth, WiFi, and Emergency Shut-Off - 50 Amp - Hardwired

Installation Details HU82VR Installation instructions





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Customer Satisfaction Score:

Ratings & Reviews

4.8

749 reviews
5 Stars
(658)
4 Stars
(59)
3 Stars
(14)
2 Stars
(5)
1 Star
(13)
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by:
Recently installed. First trip out it detected low voltage on one leg. Campground wanted to blame the surge protection until I showed them the app with the details. They replaced the breaker and all was good. The site next to us mentioned that someone had fried a board just last week. PAID FOR ITSELF IN JUST ONE TRIP!! I did need to modify the opening to accommodate the existing coach cord diameter. For the output to the transfer switch I purchased a 50amp range cord and it worked perfectly. Easy install. 2005 Newmar Mountain Aire.
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by:
Has not been installed yet. No installation instructions were provided and do far have not been sble to find any? Etrailer has been awesome in providing support for questions pertaining to installation! Will update on product once installed and functional
Gary profile picture

Gary

5/1/2026

Great product with great support. I would recommend both Hughes and etrailer for great products and support

by:
I'm really impressed with the Power Watchdog Surge Protector I installed in my RV. One of the standout features is the Bluetooth and WiFi connectivity, which makes it easy to monitor everything right from my phone. The emergency shutdown feature also gives me peace of mind, knowing that my RV's electrical system is protected.

Installation was straightforward, and it solved the worry I had about power surges during our trips. For anyone considering this product, I'd recommend taking the time to use the mobile app—it really adds to the convenience and overall value.
by:
I like the protector being in-line. Looks very good/neat. It was simple to install just a little time for neatness. Downside: if an issues occurs- no power.
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Etrailer Expert

Brooke M.

6/18/2025

Love the way you have that all neatly installed, Gary. Looks fantastic! Hopefully you won't have to deal with a surge but you're prepared if you do :)

by:
Excellent product that works exactly as expected. I sleep well knowing my RV electrical system and large solar installation are protected while plugged in!
by:
Works seamlessly. Great insurance.
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by:
If you’re planning on installing a hard wire version note you can’t connect it to your 120v home outlet if it has a GFCI on that circuit. I had to return it as there is no way to run a dedicated circuit to my trailer.
by:
This is the way to go if you want to protect the electronics in your trailer. A couple of bucks for prevention can save you thousands later.
by:
Highly recommend this product. I installed it on my 2014 Tiffin. Very straightforward installation. Information provided by BLuetooth and Wifi invaluable as far as electrical protection for my motorhome.
by:
It's working well
by:
Having used a plug in version, the built in is going to ba an awesome peace of mind.
by:
Why is connecting via Bluetooth so difficult? There are 3 apps to choose from...why? Of the 3 presented, 2 do not work (incorrect BLE ID error) and the third requires a Hughes account. All I want is to connect locally via Bluetooth, I have no intention of accessing via WiFi nor do I want another account with another company. Most reviews do not mention that an account with Hughes is required to monitor this device, perhaps it is a new requirement with the Gen II model? Anyway, super frustrating that I cannot monitor this device remotely.
Installation instructions were good, but as other reviewers have stated the wiring to support 50A is tough to work with in tight spaces. I fabbed a bracket for a Pelican waterproof case because I ran out of time to place this under the bed where the auto transfer switch and power distribution are located. The case is accessible from underneath, which means I can visually monitor the device if required, but that becomes more problematic during inclement weather. I recognized this issue but was counting on Bluetooth connectivity to eliminate it.
by:
Easy to order and fast delivery. Would definitely order again from them.
by:
I am going to give it an average for right now because when I first connected it the unit indicated an E9 error, meaning the surge protection module is used up. This was after I first connected it to a 20 amp circuit (RV storage facility) running on a 50 amp dogbone with no systems running in the RV. However I will give it four stars based on Hughes customer support. Two simple emails and they are shipping a replacement surge module. If the module doesn't fix the issue then they will replace the whole EMS. The unit overall appears to be high quality and bluetooth connection provides great circuit information as well as total amps used by the RV.
by:
Quick delivery, easy set up, works as expected!!
by:
Setup was straightforward and simple.
by:
Not easy to install because those wires are so big but so worth it. The company was responsive when I had an issue and I've been happy with it ever since.
by:
Very solid construction. Love the beefy screw terminals.
by:
Once I got it wired in it’s doing great. Love the app!
by:
Works great, thank you
by:
Product arrived as advertised! Packed well and all parts seem to be included. I have not installed it yet but looks really straight forward. I know if I have any questions, e-trailer will be there for me
by:
My order came 4 days early. it works great. The application to monitor the power also worked great.
by:
As an Installer, I have a "Love Hate" relationship with this product. It HAS THE FEATURES that our customers want, BUT - that installation is tough.

To properly install, it takes some precision stripping and trimming of your wire. There is NO room for mistakes, no room for excess wire, and no room for accidental long strips. (One side of this device, you are installing into the relay contacts themselves, and strips that are inserted too far can damage the relay)
The "E8" Nuetral Error common with inverted systems, also like to just enable itself, after you have disabled it, causing confusion for users.

We will continue to purchase and install these devices as they have the feature set customers WANT.
by:
Works as advertised, easy to install and connected to Bluetooth with no problem.
by:
Easy install, simple set up.
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See what our Experts say about this Hughes Autoformers RV Surge Protector

Do you have a question about this RV Surge Protector?
  • Is Power Watchdog Surge Protector # HU82VR Current Version
    Hey Steve, yes the Power Watchdog Surge Protector # HU82VR that you referenced is the most current version.
    view full answer...
  • Input and Output Ends of the 50A Power Watchdog Surge Protector
    Hey Dave! The input for the 50A Power Watchdog Surge Protector # HU82VR is at the bottom while the output is at the top. I'm attaching a clip from the instructions on Hughes site so you can see the correct orientation. I've requested for the instructions to be added to the product page as well, and I'll send a link to you in a separate email so you have it.
    view full answer...
  • Can I Use the Power Watchdog Surge Protector w/the Power Center Surge Protector and Voltage Booster?
    Hey Shawn, congrats on the new 5th wheel trailer. The Watchdog Power Center Surge Protector and Voltage Booster item # HU74ZR is all you're going to need. Adding in the Power Watchdog Surge Protector item # HU82VR would be redundant. The item # HU74ZR has all the surge protector features and is a voltage booster. If you have any additional questions, go ahead and click on the box that says Reply to Jerred H and I'll be happy to answer them.
    view full answer...
  • Recommended B&W 5th Wheel to Gooseneck Pin Box for a Curt or Lippert Rhino Box Bolt Pattern
    Welcome back Matthew! The B&W 5th Wheel to Gooseneck Pin Box item # BW23RV weighs 175 lbs, which includes the weight of the included safety chains. This pin box is designed to fit the Curt or Lippert Rhino Box bolt pattern. It works with trailers weighing up to 25,000 lbs. The B&W item # BW23RV uses a rubber SumoSpring to absorb road shock while also reducing chucking and jarring. It's going to handle those road bumps and bridge transitions before they get transferred to your truck making...
    view full answer...
  • Does the Power Watchdog Surge Protectors Make any Noise?
    Thanks for reaching out, Mike. The only noise you should hear from any of the Power Watchdog Surge Protectors would be a small audible click when the unit energizes or disconnects power. This includes both the Portable Power Watchdog # HU62VR and the Hardwired Power Watchdog Surge Protector # HU82VR. You’ll usually hear a single click a few seconds after plugging in, and another click if it disconnects due to bad campground power. The click is brief and not a constant noise. You shouldn’t...
    view full answer...
  • Need Replacement Surge Protection Module For Power Watchdog Surge Protector HU82VR
    Hello Thomas, thanks for reaching out. Sounds like you are looking for the replacement surge protection module for the Power Watchdog Surge Protector # HU82VR. If so, we have just the thing! You will need the following: - Replacement Surge Protection Module for Gen 2 50 Amp Hughes Watchdog Surge Protector or Power Center # HU24ZR
    view full answer...
  • Can 50 Amp Power Watchdog Surge Protector be Used with 30 Amp Power Source
    Hey Marc, yes you can use the 50 amp Power Watchdog Surge Protector # HU82VR with a 30 amp power source. It will work just fine without any issues.
    view full answer...
  • Looking for Backup Power Watchdog Surge Protector HU82VR
    Are you wanting to have a backup Power Watchdog Surge Protector # HU82VR on hand? If so, you'd just need to order another # HU82VR. If you wanted something else let me know.
    view full answer...
  • Recommended In-Line Surge Protector to Monitor Generator Voltage Remotely
    Hey Stanley. The app screen for the Power Watchdog Surge Protector with Bluetooth item # HU47FR is going to look like the picture I attached below. It'll show the wattage being used along with the amps and voltage. The Power Watchdog Surge Protector with Bluetooth item # HU47FR includes 50 amp male and female 4-prong plugs. Since you're wanting to install it in-line, I recommend the Power Watchdog Surge Protector item # HU82VR, which has the same features and Bluetooth monitoring abilities...
    view full answer...
  • Can a 50A RV be Plugged Into 20A or 30A Power?
    Hey Mike, thanks for reaching out! I'm not quite sure what product you're referring to, but if you're talking about having a 50A RV and hooking it up to a 20A or 30A power source, you definitely can do that with the Power Watchdog # HU82VR. You'll just have to be more diligent about making sure you don't exceed those amps otherwise you're looking at a power failure. What parts are you using to hook up to the lower amp pedestal?
    view full answer...
  • Hardwired Hughes Power Watchdog Surge Protector
    Hi Steve, I checked with our team that handles this and can confirm the hardwired, 50 amp Power Watchdog Surge Protector with Bluetooth, WiFi, and Emergency Shut Down # HU82VR is the Gen II version.
    view full answer...
  • Where To Install A Hardwired Watchdog Surge Protector In A System With A Transfer Switch
    Hey Robert, The Power Watchdog Surge Protector # HU82VR can be installed on the shore power lines before the transfer switch. Since it's before the transfer switch it would only be tied to the shore power and wouldn't be an issue with the inverters. The inverters would be separate from shore power due to the transfer switch so the Watchdog wouldn't be connected to the inverters. These units are not waterproof like the portable units # HU62VR since they're intended to be installed inside....
    view full answer...
  • Availability of Gen II Power Watchdog Surge Protector PWD50EPOHW
    Hey Barry! The # HU82VR you were looking at is the Gen II model. We list the manufacturer part number and name at the bottom of the description which shows this is the Gen II. I also attached a picture which shows the same thing. If you need anything else don't hesitate to reach out in the comments below.
    view full answer...
  • Can Power Watchdog Surge Protector HU82VR Be Used with Generators
    Hey Jeff, yes the Power Watchdog Surge Protector # HU82VR that you referenced can be used with a generator. We haven't had any issues with it and generators but I wonder if the problem is that the generators in question weren't pure sine wave generators.
    view full answer...
  • What Are The Dimensions Of The Watchdog Surge Protector HU82VR?
    Hey Gary, The Dimensions of the Watchdog Surge Protector # HU82VR are 11-1/2" long x 6-1/2" wide x 4" deep. Perfect for mounting somewhere inside a cabinet or storage compartment. How much space do you have to install something like this?
    view full answer...
  • How to Add Surge Protection to a RV w/a 50 Amp SmartPlug
    Hey Rick. It looks like you purchased the SmartPlug RV Power Cord Adapter item # SM93VR a couple of weeks back. If your Airstream Flying Cloud has the SmartPlug 50 amp connector you'll need to install the Power Watchdog Surge Protector with Bluetooth, WiFi, and Emergency Shut Down item # HU82VR. The Power Watchdog item # HU82VR will be hardwired inside your RV and will provide you with the same protection the plug in ones like item # HU62VR do. If you have any additional questions, go...
    view full answer...
  • Power Cable for Power Watchdog Surge Protector
    Hi Ward; there is no specific size cable for the Power Watchdog Surge Protector # HU82VR. This is designed to be used with a 50 amp power cord like # A10-5025END with the pigtail end for hard wiring. The wire gauges vary within the cable itself. The cable ends do not need to be ferruled, you need to strip the ends back 3/8" as indicated in the instructions.
    view full answer...
  • Can I Use a 50-Amp Power Watchdog with a Victron MultiPlus?
    Hey Jason, welcome back! Yes, you can use the 50-amp Power Watchdog to supply your 48V Victron MultiPlus using just L1, Neutral, and Ground. That gives you access to up to 50 amps at 120V (6,000 watts) from one leg, as long as your MultiPlus and wiring are rated to handle it. The big thing is that you cannot combine L1 and L2 to increase the available amperage. You also need proper overcurrent protection and a safe termination for the unused leg. Which Victron MultiPlus model do you have?
    view full answer...

Do you have a question about this RV Surge Protector?


Info for this part was:

Employee Jeff D
Installed by:
Jeff D
Employee Jameson C
Expert Research:
Jameson C
Employee Chris R
Video Edited:
Chris R
Employee Wilson B
Updated by:
Wilson B
Employee Michael B
Updated by:
Michael B
Employee Amanda M
Edited by:
Amanda M
Employee Cody B
Written by:
Cody B

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