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Keep your RV safe from damage caused by voltage spikes and sustained low voltage. Disconnects power when voltage is low to keep your appliances safe. Downloadable app lets you monitor the connection and diagnose problems from your smartphone.
Features:
Specs:
Protect your investment
If you aren't using a surge protector, you're taking a big risk. While spikes caused by lightning can damage your electrical system and appliances, there are common electrical issues that can be just as dangerous. Choosing a surge protector with advanced features will help you protect your RV.
Smart Surge Protection
Electrical problems are not uncommon at campgrounds, especially ones where wiring was originally installed decades ago. When a campground is full on a hot day and everyone is running their air conditioners, low voltage may cause a brown-out situation and damage your RV appliances. On the flip side, faulty transmission, bad wiring, or spikes caused by other RVers connecting to a shared line can all lead to voltage issues that may not be significant enough to trip a basic surge protector.
Power Watchdog surge protectors with Emergency Power Off are equipped with computers that monitor voltage and disconnect when voltage is at risky levels. Plus, they automatically reconnect power when power returns to normal. This keeps your RV safe from problems caused by low voltage like motors overheating in fans and air conditioners.
In the event of a major spike, you can replace the surge protection module itself rather than the entire unit. The modules are plugged in without soldering, so you don't need to be an expert electrician to make an easy repair. In fact, the only tool you need is a screwdriver.
Information at Hand
The Power Watchdog app lets you connect to your surge protector via Bluetooth. You can monitor your energy usage, making it easy to diagnose any ongoing energy issues you may be experiencing. When voltage increases or decreases to risky levels, you will be notified right away. You can also reset your surge protector without stepping outside.
Alternate Instructions
Customer Satisfaction Score:
96% were satisfied with this product
4% of customers were not satisfied
Ratings & Reviews
Wish it had a cover
I rest easy knowing im protected!!
I like acing the Bluetooth interface to see my power usage.
Easy to order, fast delivery.
Pretty Cool Stuff!
Plugged it in, waiting for the face to light up, plugged in the camper. Awesome! Everything works, the app works, I can monitor my electrical voltage, current, anywhere. It's pretty cool.
Will was very helpful in getting my order placed correctly.
It works great. Only problem is there’s no rain protection where the rv plugs in to the EMS.
We are glad we have it!
Working as described. Quick and easy or dering
Love it. We are full time on our land until we build our permanent home. It is a rural location and we'll often have power loss or intermittent connections due to high winds. This device came recommended because I needed something to monitor the quality of my power service and protect vital electronics in the event of instability. So far it has been great, and I love both the monitoring through the app and the fact that it has a built in surge protector. These RVs aren't cheap but they have sensitive electronics that are often expensive to repair or replace. This is a must have.
Shipping Is fast
Haven’t had a chance to use, but came i ntact.
Delivered on time, package look like it was handled with care as the surge protector is in perfect condition. etrailer kept me informed from purchase to delivery. Very heavy duty looking product. I will do a follow up review when I have a chance to use the product this spring. etrailer sets the standard for excellence!
This is great and has saved my rig twice already. If you don’t have it get it.
This is our 2nd watch dog... works great
So far so good at home. We do have a steady supply of electricity here. We are leaving soon for an extended travel. We see great results there also. No tools to install. Easy download of app and easy to understand. We were recommended to the Watchdog 50 amp surge protector by someone whom uses it. Y
This product saved our toyhauler from going up in smoke ! While Glamping at our friends ranch in Colorado in June of '22 , Lightning struck their main power pole supplying power to the 40 acer property . Our RV was about an eighth of a mile from from the pole . The BOOM and SIZZLE sounds were like none other ! Scared the shizzle out of us ! After the power company restored the service , hit the breaker and the power was back on , no issues . Thank You to our Watchdog !
Used it for the first time this weekend. Easy to see dog watching over you. Gives me piece of mind at these campgrounds that you are being protected.
thank you all got what i ordered very satisfied with both products and delivery was perfect
Thank you, so excited to have this. Really appreciate the customer service and receiving this in a timely manner.
Surge protector had worked great! Would highly recommend it.
Randy
2/2/2026
Very happy with the surge protector. Highly recommend this brand
This is a tool I should have bought the first time. It works. Period.
I spent money on a different, less expensive unit that was defective right out of the box showing error code when there were none. Frustrating when on the road. This unit gives you piece of mind.
Good Product, service & speed of the 50AMP Surge Protector.
I haven't used Watchdog Surge Protector yet. But, reviews and documents were very positive. Thank you again, Kaitlynn.
I use the unit (per the instructions) to test the campground power post before plugging in the coach. This saved our coach from dead circuit breakers, no ground issues and reversed polarity before we even set up on the site. I also insist that service locations use the device when they plug in our coach. True disaster protection.
Do you have a question about this RV Surge Protector?
Condition: Like New
Notes: May have damaged packaging or minor cosmetic blemishes.
Info for this part was:
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Mike L.
4/21/2026
Glad to hear that, Amy! I'm happy to hear it's working well for you!