Difference Between Different 50 Amp Power Watchdog Surge Protectors
Updated 09/02/2025 | Published 06/20/2025
Products Featured in This Question
Question:
Searching to buy a power watchdog for my 50am travel trailer. Need to know difference between the hu47fr, hu87fr and the hu62vr? Not sure which one we should get? Def. want the one with the er shut off. We have a grand design transcend 36 trailer.
asked by: Chrystal A
Expert Reply:
Hey Chrystal! The Power Watchdog Surge Protector # HU47FR lacks the emergency shut down so we can rule that one out. The # HU87FR and # HU62VR both have the emergency shut down so the main difference is how they are monitored.
If you're fine with Bluetooth only then you want to get the # HU87FR. This also has a higher energy dissipation at 6,100 joules. If you want to be able to monitor this outside of the range of Bluetooth and you have Wi-Fi available at the trailer then the # HU62VR is the better choice.
Any big plans with your Grand Design Transcend this summer?
(click to enlarge)
Product Page this Question was Asked From
Portable Power Watchdog Surge Protector with Bluetooth and Emergency Shut Down - 50 Amp
- RV Surge Protectors
- Surge Protector
- 50 Amp
- Portable
- Automatic Shutoff
- Bluetooth Monitoring
- Hughes Autoformers
more information >
Featured Help Information
Instructions
Miscellaneous Media
Continue Researching
- Search Results: rv surge protectors
- Shop: Portable Power Watchdog Surge Protector with Bluetooth, WiFi, and Emergency Shut Down - 50 Amp
- Shop: Portable Power Watchdog Surge Protector with Bluetooth and Emergency Shut Down - 50 Amp
- Search Results: 50 amp rv surge protectors
- Search Results: surge protector
- Search Results: rv water filter
- Search Results: water sensor
- Search Results: water filtration
- Shop: Portable Power Watchdog Surge Protector with Bluetooth and WiFi - 50 Amp
- Shop: Power Watchdog Surge Protector with Bluetooth, WiFi, and Emergency Shut Down - Hardwired - 50 Amp
- Search Results: accessories and parts
- Q&A: Is Watchdog Surge Protector Voltage Booster 30A Weather Resistant
- Video: goblutech Blu Technology RV Water Filter Systems Feature Breakdown
- Shop: Portable Power Watchdog Surge Protector with Bluetooth, WiFi, and Emergency Shut Down - 30 Amp
- Shop: Watchdog Power Center Surge Protector and Voltage Booster - Bluetooth and WiFi - 30 Amp
- Shop: Hughes Autoformers Cable Lock - 3'4" Long - 1/4" Diameter - Steel
- Q&A: Should I Get the Portable Power Watchdog Surge Protector w/ Auto Restart Over the Standard Model?
- Video: Inside Watchdog Surge Protectors: How They Keep Your RV Safe
- Q&A: How Can I Lock My Watchdog Power Center Surge Protector and Voltage Booster to Pedestal?
- Shop: RV Plug Adapters
- Q&A: Replacement Module For Portable Power Watchdog Surge Protector 50 amp
- Video: Hughes Portable Power Watchdog Surge Protector Comprehensive Review
- Video: Stromberg Carlson Base Pad Extreme for RVs and Trailers Spec Review
- Q&A: Pairing and Security Questions for the Portable Power Watchdog Surge Protector
- Shop: Fifth Wheel Hitch
- Video: Review of Hughes Autoformers RV Surge Protectors - Surge Protector - HU62VR
- Video: Review of Hughes Autoformers RV Surge Protectors - 50 Amp Surge Protector - HU87FR
- Q&A: Will Hughes WatchDog Work with Newmar
- Q&A: Is The Hughes Portable Power Watchdog Surge Protector # HU87FR 6,100 Joules or 4,800 Joules?
- Shop: Trailer Hitch
Robin H.
9/2/2025
Hey Chrystal, did you decide to go with the Power Watchdog that has Bluetooth or the one with both Bluetooth and Wi-Fi for your Grand Design Transcend? I'd love to know which option worked best for you, as it could help others in a similar situation.