What is the Joules Rating for the Watchdog Gen II Surge Protector
Updated 10/27/2025 | Published 03/23/2025 >
Question:
I looking to confirm if I purchase your watchdog product HU42VR if that is the gen 2 power surge with EPO or if it’s the gen 1 version? The description for the product has a discrepancy saying it has the 6100 joules projection of the gen 2 model but further down says 3000 joules which I the gen1 version. The pictures of the product are for the gen 2 version so I want to make sure that if I purchase this it is the gen 2 version.
asked by: Becky C
Expert Reply:
Hey Becky, thanks for reaching out!
The Portable Power Watchdog Surge Protector # HU42VR is the Gen II version and is rated for 2,300 Joules. The old Gen I 50A Watchdog was rated for 6,100 Joules which is I imagine where our mistake came from, and for that I apologize.
I've got an update in to get the Joules rating corrected, so it should reflect that in the near future.
Do you have any other questions for me?
Product Page this Question was Asked From
Portable Power Watchdog Surge Protector with Bluetooth, WiFi, and Emergency Shut Down - 30 Amp
- RV Surge Protectors
- Surge Protector
- 30 Amp
- Portable
- Automatic Shutoff
- Bluetooth Monitoring
- WiFi Monitoring
- Hughes Autoformers
more information >
Continue Researching
- Search Results: rv surge protectors
- Search Results: 50 amp to 50 amp rv power cord
- Search Results: cable lock
- Search Results: rv surge protector
- Shop: Portable Power Watchdog Surge Protector with Bluetooth, WiFi, and Emergency Shut Down - 30 Amp
- Q&A: Is The Power Watchdog Surge Protector App Free To Use?
- Shop: Portable Power Watchdog Surge Protector with Bluetooth and Emergency Shut Down - 30 Amp
- Q&A: How Does the Portable Power Watchdog Surge Protector # HU42VR Connect to Wifi
- Shop: Camco Power Grip RV Extension Cord w/ Pull Handles and Carrying Strap - 50 Amp - 30'
- Shop: Portable Power Watchdog Surge Protector with Bluetooth and Emergency Shut Down - 50 Amp
- Shop: Power Watchdog Surge Protector with Bluetooth - Portable - 50 Amp
- Shop: Camco RhinoEXTREME RV Sewer Hoses w Swivel Fittings, 4-in-1 Adapter, and Caps - Black
- Shop: RV Power Cord
- Shop: RV Electrical
- Shop: Master Lock Python Cable Lock - Vinyl Coated Steel - Adjustable Length - Up to 6' Long
- Q&A: Replacement Surge Module for 30 Amp Power Watchdog Surge Protector
- Q&A: Troubleshooting A Hughes Autoformers Power Watchdog Surge Protector Thats limiting Voltage
- Q&A: Do You Carry The Hughes Portable Power Watchdog Surge Protector PWD-30-EPO?
- Video: Review of Hughes Autoformers RV Surge Protectors - Surge Protector - HU32VR
- Video: Review of Hughes Autoformers RV Surge Protectors - Surge Protector - HU42VR
- Q&A: Surge Protector for 2026 Thor Pasadena 34XG With 50A Service
- Q&A: 30 Amp Surge Protector With Replaceable Module
- Article: 30-Amp and 50-Amp RV Service: What's the Difference?
- Article: Trailer Wiring Diagrams
- Article: How to Measure for Travel Trailer and Fifth Wheel Steps
- Article: How to Dump Black and Gray RV Waste Tanks
- Article: How to Measure for Trailer Hitch Drop
- Article: RV Electrical Power Systems
- Article: What are the Common Types of Propane Fittings Used on RVs?


Jon G.
10/27/2025
Hey Becky, did the Gen II Power Watchdog end up being the version you were looking for? Knowing how it worked out could help others trying to sort through the same model details.